Anisole
- Formula: C7H8O
- Molecular weight: 108.1378
- IUPAC Standard InChIKey: RDOXTESZEPMUJZ-UHFFFAOYSA-N
- CAS Registry Number: 100-66-3
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Benzene, methoxy-; Anizol; Methoxybenzene; Methyl phenyl ether; Phenyl methyl ether; Ether, methyl phenyl-; UN 2222; Phenoxymethane; Anisol; NSC 7920
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -16.24 ± 0.29 | kcal/mol | Ccb | Fenwick, Harrop, et al., 1975 | Author was aware that data differs from previously reported values; ALS |
ΔfH°gas | -18.33 ± 0.22 | kcal/mol | Ccb | Lebedeva and Katin, 1972 | Reanalyzed by Pedley, Naylor, et al., 1986, Original value = -19.6 ± 0.3 kcal/mol; ALS |
ΔfH°gas | -16.9 | kcal/mol | Ccb | Gray and Williams, 1959 | Private communication; ALS |
ΔfH°gas | -17.9 | kcal/mol | N/A | Badoche, 1941 | Value computed using ΔfHliquid° value of -118.4 kj/mol from Badoche, 1941 and ΔvapH° value of 43.3 kj/mol from Lebedeva and Katin, 1972.; DRB |
Constant pressure heat capacity of gas
Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
38.829 | 388.15 | Hales J.L., 1967 | GT |
40.349 | 408.15 | ||
42.299 | 433.15 | ||
43.750 | 453.15 | ||
45.170 | 473.15 | ||
46.831 | 498.15 |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -27.43 ± 0.28 | kcal/mol | Ccb | Fenwick, Harrop, et al., 1975 | Author was aware that data differs from previously reported values; ALS |
ΔfH°liquid | -28.7 ± 0.2 | kcal/mol | Ccb | Lebedeva and Katin, 1972 | ALS |
ΔfH°liquid | -28.30 | kcal/mol | Ccb | Badoche, 1941 | Author's hf298_condensed=-31.02 kcal/mol; ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -904.187 | kcal/mol | Ccb | Fenwick, Harrop, et al., 1975 | Author was aware that data differs from previously reported values; Corresponding ΔfHºliquid = -27.431 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -902.9 ± 0.2 | kcal/mol | Ccb | Lebedeva and Katin, 1972 | Corresponding ΔfHºliquid = -28.7 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -903.32 | kcal/mol | Ccb | Badoche, 1941 | Author's hf298_condensed=-31.02 kcal/mol; Corresponding ΔfHºliquid = -28.30 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
47.56 | 298.15 | Fenwick, Harrop, et al., 1975, 2 | DH |
49.90 | 304.8 | Phillip, 1939 | DH |
45.70 | 297.2 | de Kolossowsky and Udowenko, 1933 | DH |
Phase change data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 427.0 ± 0.9 | K | AVG | N/A | Average of 19 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 250. ± 40. | K | AVG | N/A | Average of 9 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 643. ± 4. | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 41.4 ± 0.5 | atm | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 2.93 | mol/l | N/A | Wilson, Wilson, et al., 1996 | Uncertainty assigned by TRC = 0.092 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 11. ± 2. | kcal/mol | AVG | N/A | Average of 13 values; Individual data points |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
9.314 | 426.8 | N/A | Majer and Svoboda, 1985 | |
9.99 | 397. | N/A | Reich and Sanhueza, 1993 | Based on data from 382. to 429. K.; AC |
10.0 | 397. | A | Stephenson and Malanowski, 1987 | Based on data from 382. to 437. K. See also Ambrose, Ellender, et al., 1976.; AC |
9.32 | 426. | N/A | Ambrose, Ellender, et al., 1976 | Based on data from 282. to 437. K.; AC |
10.3 ± 0.02 | 367. | C | Hales, Lees, et al., 1967 | AC |
10.0 ± 0.02 | 382. | C | Hales, Lees, et al., 1967 | AC |
9.68 ± 0.02 | 402. | C | Hales, Lees, et al., 1967 | AC |
9.30 ± 0.02 | 427. | C | Hales, Lees, et al., 1967 | AC |
10.0 | 397. | N/A | von Terres, Gebert, et al., 1955 | Based on data from 382. to 437. K. See also Collerson, Counsell, et al., 1965.; AC |
Enthalpy of vaporization
ΔvapH =
A exp(-βTr) (1 − Tr)β
ΔvapH =
Enthalpy of vaporization (at saturation pressure)
(kcal/mol)
Tr = reduced temperature (T / Tc)
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Temperature (K) | A (kcal/mol) | β | Tc (K) | Reference | Comment |
---|---|---|---|---|---|
298. to 427. | 15.16 | 0.2787 | 644.1 | Majer and Svoboda, 1985 |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference |
---|---|---|---|---|
383.03 to 437.26 | 4.17155 | 1489.756 | -69.607 | Collerson, Counsell, et al., 1965, 2 |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
2.787 | 237. | Domalski and Hearing, 1996 | See also Lee, Lien, et al., 1994.; AC |
3.081 | 236. | Domalski and Hearing, 1996 | AC |
4.0700 | 293.2 | Eykman, 1889 | DH |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
13.9 | 293.2 | Eykman, 1889 | DH |
Enthalpy of phase transition
ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
3.0808 | 268.73 | crystaline, I | liquid | Goates, Boerio-Goates, et al., 1987 | DH |
Entropy of phase transition
ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
11.5 | 268.73 | crystaline, I | liquid | Goates, Boerio-Goates, et al., 1987 | DH |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Ion clustering data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
RCD - Robert C. Dunbar
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
By formula: Br- + C7H8O = (Br- • C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 11.8 ± 1.8 | kcal/mol | IMRE | Paul and Kebarle, 1991 | gas phase; ΔGaff measured at 303 K, corrected to 423 K, ΔSaff taken as that of PhNO2..Br-; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 20. | cal/mol*K | N/A | Paul and Kebarle, 1991 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 3.3 ± 1.0 | kcal/mol | IMRE | Paul and Kebarle, 1991 | gas phase; ΔGaff measured at 303 K, corrected to 423 K, ΔSaff taken as that of PhNO2..Br-; B |
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
3.3 | 423. | PHPMS | Paul and Kebarle, 1991 | gas phase; Entropy change calculated or estimated; M |
C7H7O- + =
By formula: C7H7O- + H+ = C7H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 401.3 ± 3.1 | kcal/mol | G+TS | Dahlke and Kass, 1992 | gas phase; Acid: anisole. Between o-methoxyphenide and Me2NH.; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 394.0 ± 3.0 | kcal/mol | IMRB | Dahlke and Kass, 1992 | gas phase; Acid: anisole. Between o-methoxyphenide and Me2NH.; B |
C7H7O- + =
By formula: C7H7O- + H+ = C7H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 398.3 ± 3.1 | kcal/mol | G+TS | Dahlke and Kass, 1992 | gas phase; Acid: anisole. Between HO- and m,p-methoxyphenide; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 391.0 ± 3.0 | kcal/mol | IMRB | Dahlke and Kass, 1992 | gas phase; Acid: anisole. Between HO- and m,p-methoxyphenide; B |
C7H7O- + =
By formula: C7H7O- + H+ = C7H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 401.7 ± 3.1 | kcal/mol | G+TS | Dahlke and Kass, 1992 | gas phase; Acid: anisole. Between o-OMe-phenide and Me2NH.; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 394.0 ± 3.0 | kcal/mol | IMRB | Dahlke and Kass, 1992 | gas phase; Acid: anisole. Between o-OMe-phenide and Me2NH.; B |
By formula: Cl- + C7H8O = (Cl- • C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrG° | 7.30 | kcal/mol | TDEq | French, Ikuta, et al., 1982 | gas phase; B |
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
7.3 | 300. | PHPMS | French, Ikuta, et al., 1982 | gas phase; M |
By formula: HI + C7H7IO = C7H8O + I2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -6.9 ± 1.2 | kcal/mol | Cm | Brennan and Ubbelohde, 1956 | gas phase; ALS |
By formula: (Li+ • C7H8O) + C7H8O = (Li+ • 2C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 29.0 ± 0.9 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
By formula: (Na+ • C7H8O) + C7H8O = (Na+ • 2C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 21.4 ± 0.6 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
By formula: (Cs+ • C7H8O) + C7H8O = (Cs+ • 2C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 14.7 ± 0.9 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
By formula: (Rb+ • C7H8O) + C7H8O = (Rb+ • 2C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 15.2 ± 0.8 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
By formula: (K+ • C7H8O) + C7H8O = (K+ • 2C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16.7 ± 0.6 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
By formula: Li+ + C7H8O = (Li+ • C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 44.1 ± 4.5 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
By formula: Na+ + C7H8O = (Na+ • C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 27.1 ± 2.0 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
By formula: Cs+ + C7H8O = (Cs+ • C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 15.9 ± 1.2 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
By formula: Rb+ + C7H8O = (Rb+ • C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 17.3 ± 1.0 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
By formula: K+ + C7H8O = (K+ • C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 18.9 ± 0.7 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Ion clustering data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias
Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
View reactions leading to C7H8O+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 8.20 ± 0.05 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 200.7 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 192.9 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.25 ± 0.03 | PI | Ponomarev, Arapov, et al., 1986 | LBLHLM |
~8.10 | PE | Klasinc, Kovac, et al., 1983 | LBLHLM |
8.24 | PE | Behan, Johnstone, et al., 1976 | LLK |
8.6 | EI | McLafferty, Bente, et al., 1973 | LLK |
8.20 ± 0.02 | PE | Maier and Turner, 1973 | LLK |
8.37 | CTS | Kobayashi, Kobayashi, et al., 1973 | LLK |
8.3 ± 0.1 | EI | Gilbert, Leach, et al., 1973 | LLK |
8.20 | EI | Cooks, Bertrand, et al., 1973 | LLK |
8.18 | CTS | Pitt, Carey, et al., 1972 | LLK |
8.8 ± 0.1 | EI | Gross, 1972 | LLK |
8.4 ± 0.1 | EI | Brown, 1970 | RDSH |
8.21 | PE | Dewar and Worley, 1969 | RDSH |
8.6 | EI | Williams, Cooks, et al., 1968 | RDSH |
8.22 ± 0.02 | PI | Watanabe, Nakayama, et al., 1962 | RDSH |
8.20 ± 0.02 | PI | Watanabe, 1957 | RDSH |
8.39 | PE | Klasinc, Kovac, et al., 1983 | Vertical value; LBLHLM |
8.45 | PE | Friege and Klessinger, 1979 | Vertical value; LLK |
8.42 | PE | Kobayashi, 1978 | Vertical value; LLK |
8.25 | PE | Benoit and Harrison, 1977 | Vertical value; LLK |
8.39 | PE | Kobayashi and Nagakura, 1974 | Vertical value; LLK |
8.46 | PE | Dewar, Ernstbrunner, et al., 1974 | Vertical value; LLK |
8.42 | PE | Bock and Wagner, 1972 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C5H5+ | 13.1 ± 0.1 | CH3+CO | PIPECO | Das, Gilman, et al., 1986 | LBLHLM |
C5H5+ | 13.5 | ? | EI | Harrison, Haynes, et al., 1965 | RDSH |
C6H5O+ | 11.70 ± 0.05 | CH3 | PI | Ponomarev, Arapov, et al., 1986 | LBLHLM |
C6H5O+ | 11.9 ± 0.1 | CH3 | PIPECO | Das, Gilman, et al., 1986 | LBLHLM |
C6H5O+ | 11.3 | CH3 | EI | McLafferty, Bente, et al., 1973 | LLK |
C6H5O+ | 11.8 ± 0.1 | CH3 | EI | Brown, 1970 | RDSH |
C6H5O+ | 11.9 ± 0.1 | CH3 | EI | Fisher, Palmer, et al., 1964 | RDSH |
C6H5O+ | 11.9 ± 0.1 | CH3 | EI | Tait, Shannon, et al., 1962 | RDSH |
C6H6+ | 10.85 ± 0.05 | CH2O | PI | Ziesel and Lifshitz, 1987 | LBLHLM |
C6H6+ | 11.4 ± 0.1 | CH2O | PIPECO | Das, Gilman, et al., 1986 | LBLHLM |
C6H6+ | 11.50 | HCHO | EI | Cooks, Bertrand, et al., 1973 | LLK |
C6H6+ | 11.6 ± 0.1 | HCHO | EI | Gross, 1972 | LLK |
C6H6+ | 11.3 ± 0.1 | CH2O | EI | Brown, 1970 | RDSH |
C6H6+ | 11.30 | ? | EI | Howe and Williams, 1969 | RDSH |
C6H7+ | 12.1 ± 0.1 | CHO | PIPECO | Das, Gilman, et al., 1986 | LBLHLM |
C6H7+ | 12.1 | CO+H? | EI | Harrison, Haynes, et al., 1965 | RDSH |
De-protonation reactions
C7H7O- + =
By formula: C7H7O- + H+ = C7H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 401.3 ± 3.1 | kcal/mol | G+TS | Dahlke and Kass, 1992 | gas phase; Acid: anisole. Between o-methoxyphenide and Me2NH.; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 394.0 ± 3.0 | kcal/mol | IMRB | Dahlke and Kass, 1992 | gas phase; Acid: anisole. Between o-methoxyphenide and Me2NH.; B |
C7H7O- + =
By formula: C7H7O- + H+ = C7H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 398.3 ± 3.1 | kcal/mol | G+TS | Dahlke and Kass, 1992 | gas phase; Acid: anisole. Between HO- and m,p-methoxyphenide; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 391.0 ± 3.0 | kcal/mol | IMRB | Dahlke and Kass, 1992 | gas phase; Acid: anisole. Between HO- and m,p-methoxyphenide; B |
C7H7O- + =
By formula: C7H7O- + H+ = C7H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 401.7 ± 3.1 | kcal/mol | G+TS | Dahlke and Kass, 1992 | gas phase; Acid: anisole. Between o-OMe-phenide and Me2NH.; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 394.0 ± 3.0 | kcal/mol | IMRB | Dahlke and Kass, 1992 | gas phase; Acid: anisole. Between o-OMe-phenide and Me2NH.; B |
Ion clustering data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
By formula: Br- + C7H8O = (Br- • C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 11.8 ± 1.8 | kcal/mol | IMRE | Paul and Kebarle, 1991 | gas phase; ΔGaff measured at 303 K, corrected to 423 K, ΔSaff taken as that of PhNO2..Br-; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 20. | cal/mol*K | N/A | Paul and Kebarle, 1991 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 3.3 ± 1.0 | kcal/mol | IMRE | Paul and Kebarle, 1991 | gas phase; ΔGaff measured at 303 K, corrected to 423 K, ΔSaff taken as that of PhNO2..Br-; B |
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
3.3 | 423. | PHPMS | Paul and Kebarle, 1991 | gas phase; Entropy change calculated or estimated; M |
By formula: Cl- + C7H8O = (Cl- • C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrG° | 7.30 | kcal/mol | TDEq | French, Ikuta, et al., 1982 | gas phase; B |
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
7.3 | 300. | PHPMS | French, Ikuta, et al., 1982 | gas phase; M |
By formula: Cs+ + C7H8O = (Cs+ • C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 15.9 ± 1.2 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
By formula: (Cs+ • C7H8O) + C7H8O = (Cs+ • 2C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 14.7 ± 0.9 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
By formula: K+ + C7H8O = (K+ • C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 18.9 ± 0.7 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
By formula: (K+ • C7H8O) + C7H8O = (K+ • 2C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16.7 ± 0.6 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
By formula: Li+ + C7H8O = (Li+ • C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 44.1 ± 4.5 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
By formula: (Li+ • C7H8O) + C7H8O = (Li+ • 2C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 29.0 ± 0.9 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
By formula: Na+ + C7H8O = (Na+ • C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 27.1 ± 2.0 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
By formula: (Na+ • C7H8O) + C7H8O = (Na+ • 2C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 21.4 ± 0.6 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
By formula: Rb+ + C7H8O = (Rb+ • C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 17.3 ± 1.0 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
By formula: (Rb+ • C7H8O) + C7H8O = (Rb+ • 2C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 15.2 ± 0.8 | kcal/mol | CIDT | Amunugama and Rodgers, 2003 | RCD |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Fenwick, Harrop, et al., 1975
Fenwick, J.O.; Harrop, D.; Head, A.J.,
Thermodynamic properties of organic oxygen compounds. 41. Enthalpies of formation of eight ethers,
J. Chem. Thermodyn., 1975, 7, 943-954. [all data]
Lebedeva and Katin, 1972
Lebedeva, N.D.; Katin, Yu.A.,
Heats of combustion of certain monosubstituted benzenes,
Russ. J. Phys. Chem. (Engl. Transl.), 1972, 46, 1088. [all data]
Pedley, Naylor, et al., 1986
Pedley, J.B.; Naylor, R.D.; Kirby, S.P.,
Thermochemical Data of Organic Compounds, Chapman and Hall, New York, 1986, 1-792. [all data]
Gray and Williams, 1959
Gray, P.; Williams, A.,
Chemistry of free radicals containing oxygen. Part 3.- Thermochemistry and reactivity of the higher alkoxyl radicals RO·,
Trans. Faraday Soc., 1959, 55, 760-777. [all data]
Badoche, 1941
Badoche, M.,
No 19. - Chaleurs de combustion du phenol, du-m-cresol et del leurs ethers; par M. Marius BADOCHE.,
Bull. Soc. Chim. Fr., 1941, 8, 212-220. [all data]
Hales J.L., 1967
Hales J.L.,
Thermodynamic properties of organic oxygen compounds. Part 18. Vapor heat capacities and heats of vaporization of ethyl ketone, ethyl propyl ketone, methyl isopropyl ketone, and methyl phenyl ether,
Trans. Faraday Soc., 1967, 63, 1876-1879. [all data]
Fenwick, Harrop, et al., 1975, 2
Fenwick, J.O.; Harrop, D.; Head, A.J.,
Thermodynamic properties of organic oxygen compounds. 41. Enthalpies of formation of eight ethers,
J. Chem. Thermodynam., 1975, 7, 944-954. [all data]
Phillip, 1939
Phillip, N.M.,
Adiabatic and isothermal compressibilities of liquids,
Proc. Indian Acad. Sci., 1939, A9, 109-120. [all data]
de Kolossowsky and Udowenko, 1933
de Kolossowsky, N.A.; Udowenko, W.W.,
Mesure des chaleurs specifique moleculaires de quelques liquides,
Compt. rend., 1933, 197, 519-520. [all data]
Wilson, Wilson, et al., 1996
Wilson, L.C.; Wilson, H.L.; Wilding, W.V.; Wilson, G.M.,
Critical Point Measurements for Fourteen Compounds by a Static Method and a Flow Method,
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Majer and Svoboda, 1985
Majer, V.; Svoboda, V.,
Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]
Reich and Sanhueza, 1993
Reich, Ricardo; Sanhueza, Vilma,
Vapor-liquid equilibria for .alpha.-pinene or .beta.-pinene with anisole,
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Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
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Ambrose, Ellender, et al., 1976
Ambrose, D.; Ellender, J.H.; Sprake, C.H.S.; Townsend, R.,
Thermodynamic properties of organic oxygen compounds XLIII. Vapour pressures of some ethers,
The Journal of Chemical Thermodynamics, 1976, 8, 2, 165-178, https://doi.org/10.1016/0021-9614(76)90090-2
. [all data]
Hales, Lees, et al., 1967
Hales, J.L.; Lees, E.B.; Ruxton, D.J.,
Thermodynamic properties of organic oxygen compounds. Part 18.-Vapour heat capacities and heats of vaporization of ethyl ketone, ethyl propyl ketone, methyl isopropyl ketone, and methyl phenyl ether,
Trans. Faraday Soc., 1967, 63, 1876. [all data]
von Terres, Gebert, et al., 1955
von Terres, E.; Gebert, F.; Hulsemann, H.; Petereit, H.; Toepsch, H.; Ruppert, W.,
Brennst.-Chem., 1955, 36, 272. [all data]
Collerson, Counsell, et al., 1965
Collerson, R.R.; Counsell, J.F.; Handley, R.; Martin, J.F.; Sprake, C.H.S.,
677. Thermodynamic properties of organic oxygen compounds. Part XV. Purification and vapour pressures of some ketones and ethers,
J. Chem. Soc., 1965, 3697, https://doi.org/10.1039/jr9650003697
. [all data]
Collerson, Counsell, et al., 1965, 2
Collerson, R.R.; Counsell, J.F.; Handley, R.; Martin, J.F.; Sprake, C.H.S.,
Thermodynamic Properties of Organic Oxygen Compounds. Part XV. Purification and Vapour Pressures of Some Ketones and Ethers,
J. Chem. Soc., 1965, 3697-3700, https://doi.org/10.1039/jr9650003697
. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
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Lee, Lien, et al., 1994
Lee, Ming-Jer; Lien, Pei-Jung; Huang, Wen-Kuo,
Solid-Liquid Equilibria for Binary Mixtures Containing Cresols, Ethylenediamine, and Anisole,
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. [all data]
Eykman, 1889
Eykman, J.F.,
Zur kryoskopischen Molekulargewichtsbestimmung,
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Goates, Boerio-Goates, et al., 1987
Goates, J.R.; Boerio-Goates, J.; Goates, S.R.; Ott, J.B.,
(Solid + liquid) phase equilibria for (N,N-dimethylacetamide + tetrachloromethane): enthalpies of melting of pure components and enthalpies for formation of molecular addition compounds from phase equilibria,
J. Chem. Thermodynam., 1987, 19, 103-107. [all data]
Paul and Kebarle, 1991
Paul, G.J.C.; Kebarle, P.,
Stabilities of Complexes of Br- with Substituted Benzenes (SB) Based on Determinations of the Gas-Phase Equilibria Br- + SB = (BrSB)-,
J. Am. Chem. Soc., 1991, 113, 4, 1148, https://doi.org/10.1021/ja00004a014
. [all data]
Dahlke and Kass, 1992
Dahlke, G.D.; Kass, S.R.,
The Ortho-dehydrophenoxy Anion,
Int. J. Mass Spectrom. Ion Proc., 1992, 117, 633, https://doi.org/10.1016/0168-1176(92)80117-J
. [all data]
French, Ikuta, et al., 1982
French, M.A.; Ikuta, S.; Kebarle, P.,
Hydrogen bonding of O-H and C-H hydrogen donors to Cl-. Results from mass spectrometric measurement of the ion-molecule equilibria RH + Cl- = RHCl-,
Can. J. Chem., 1982, 60, 1907. [all data]
Brennan and Ubbelohde, 1956
Brennan, D.; Ubbelohde, A.R.,
A thermochemical evaluation of bond strengths in some carbon compounds. Part IV. Bond-strength differences based on the reaction: RI + HI = RH + I2, where R = p-methoxyphenyl and cyclohexyl,
J. Chem. Soc., 1956, 3011-3016. [all data]
Amunugama and Rodgers, 2003
Amunugama, R.; Rodgers, M.T.,
Influence of substituents on cation-pi interactions - 5. Absolute binding energies of alkali metal cation-anisole complexes determined by threshold collision-induced dissociation and theoretical studies,
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. [all data]
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
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. [all data]
Ponomarev, Arapov, et al., 1986
Ponomarev, D.A.; Arapov, O.V.; Sergeev, Y.L.; Chistyakov, A.B.,
[Title unavailable],
Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 1986, 29, 107. [all data]
Klasinc, Kovac, et al., 1983
Klasinc, L.; Kovac, B.; Gusten, H.,
Photoelectron spectra of acenes. Electronic structure and substituent effects,
Pure Appl. Chem., 1983, 55, 289. [all data]
Behan, Johnstone, et al., 1976
Behan, J.M.; Johnstone, R.A.W.; Bentley, T.W.,
An evaluation of empirical methods for calculating the ionization potentials of substituted benzenes,
Org. Mass Spectrom., 1976, 11, 207. [all data]
McLafferty, Bente, et al., 1973
McLafferty, F.W.; Bente, P.F., III; Kornfeld, R.; Tsai, S.-C.; Howe, I.,
Collisional activation spectra of organic ions,
J. Am. Chem. Soc., 1973, 95, 2120. [all data]
Maier and Turner, 1973
Maier, J.P.; Turner, D.W.,
Steric inhibition of resonance studied by molecular photoelectron spectroscopy Part 3. Anilines, Phenols and Related Compounds,
J. Chem. Soc. Faraday Trans. 2, 1973, 69, 521. [all data]
Kobayashi, Kobayashi, et al., 1973
Kobayashi, H.; Kobayashi, M.; Kaizu, Y.,
Molecular complexes of arenetricarbonylchromium,
Bull. Chem. Soc. Jpn., 1973, 46, 3109. [all data]
Gilbert, Leach, et al., 1973
Gilbert, J.R.; Leach, W.P.; Miller, J.R.,
Ionisation appearance potential measurements in arene chromium tricarbonyls,
J. Organomet. Chem., 1973, 49, 219. [all data]
Cooks, Bertrand, et al., 1973
Cooks, R.G.; Bertrand, M.; Beynon, J.H.; Rennekamp, M.E.; Setser, D.W.,
Energy partitioning data as an ion structure probe. Substituted anisoles,
J. Am. Chem. Soc., 1973, 95, 1732. [all data]
Pitt, Carey, et al., 1972
Pitt, C.G.; Carey, R.N.; Toren, E.C.,
Nature of the electronic interactions in aryl-substituted polysilanes,
J. Am. Chem. Soc., 1972, 94, 3806. [all data]
Gross, 1972
Gross, M.L.,
Ion cyclotron resonance spectrometry. A means of evaluating 'kinetic shifts',
Org. Mass Spectrom., 1972, 6, 827. [all data]
Brown, 1970
Brown, P.,
Kinetic studies in mass spectrometry. VIII. Competing [M-CH3] and [M-CH2O] reactions in substituted anisoles. Approximate activation energies from ionization appearance potentials,
Org. Mass Spectrom., 1970, 4, 519. [all data]
Dewar and Worley, 1969
Dewar, M.J.S.; Worley, S.D.,
Photoelectron spectra of molecules. I. Ionization potentials of some organic molecules and their interpretation,
J. Chem. Phys., 1969, 50, 654. [all data]
Williams, Cooks, et al., 1968
Williams, D.H.; Cooks, R.G.; Howe, I.,
Studies in mass spectrometry. XXXI. A comparison of reaction rates in common ions generated via fragmentation and direct ionization,
J. Am. Chem. Soc., 1968, 90, 6759. [all data]
Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J.,
Ionization potentials of some molecules,
J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]
Watanabe, 1957
Watanabe, K.,
Ionization potentials of some molecules,
J. Chem. Phys., 1957, 26, 542. [all data]
Friege and Klessinger, 1979
Friege, H.; Klessinger, M.,
Elektronenstruktur von Alkyl-aryl- und Alkyl-vinyl-ethern,
Chem. Ber., 1979, 112, 1614. [all data]
Kobayashi, 1978
Kobayashi, T.,
A simple general tendency in photoelectron angular distributions of some monosubstituted benzenes,
Phys. Lett., 1978, 69, 105. [all data]
Benoit and Harrison, 1977
Benoit, F.M.; Harrison, A.G.,
Predictive value of proton affinity. Ionization energy correlations involving oxygenated molecules,
J. Am. Chem. Soc., 1977, 99, 3980. [all data]
Kobayashi and Nagakura, 1974
Kobayashi, T.; Nagakura, S.,
Photoelectron spectra of substituted benzenes,
Bull. Chem. Soc. Jpn., 1974, 47, 2563. [all data]
Dewar, Ernstbrunner, et al., 1974
Dewar, P.S.; Ernstbrunner, E.; Gilmore, J.R.; Godfrey, M.; Mellor, J.M.,
Conformational analysis of alkyl aryl ethers and alkyl aryl sulphides by photoelectron spectroscopy,
Tetrahedron, 1974, 30, 2455. [all data]
Bock and Wagner, 1972
Bock, H.; Wagner, G.,
Electron lone pairs in organic sulfides and disulfides,
Angew. Chem. Int. Ed. Engl., 1972, 11, 119. [all data]
Das, Gilman, et al., 1986
Das, P.R.; Gilman, J.P.; Meisels, G.G.,
Unimolecular decomposition of energy-selected anisole ions. Breakdown graph and metastable decay rates,
Int. J. Mass Spectrom. Ion Processes, 1986, 68, 155. [all data]
Harrison, Haynes, et al., 1965
Harrison, A.G.; Haynes, P.; McLean, S.; Meyer, F.,
The mass spectra of methyl-substituted cyclopentadienes,
J. Am. Chem. Soc., 1965, 87, 5099. [all data]
Fisher, Palmer, et al., 1964
Fisher, I.P.; Palmer, T.F.; Lossing, F.P.,
The vertical ionization potentials of phenyl and phenoxy radicals,
J. Am. Chem. Soc., 1964, 86, 2741. [all data]
Tait, Shannon, et al., 1962
Tait, J.M.S.; Shannon, T.W.; Harrison, A.G.,
The structure of substituted C7 ions from benzyl derivatives at the appearance potential threshold,
J. Am. Chem. Soc., 1962, 84, 4. [all data]
Ziesel and Lifshitz, 1987
Ziesel, J.P.; Lifshitz, C.,
Time-dependent mass spectra and breakdown graphs. 10. Dissociative photoionization of anisole,
Chem. Phys., 1987, 117, 227. [all data]
Howe and Williams, 1969
Howe, I.; Williams, D.H.,
Calculation and qualitative predictions of mass spectra. Mono- and paradisubstituted benzenes,
J. Am. Chem. Soc., 1969, 91, 7137. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References
- Symbols used in this document:
AE Appearance energy Cp,gas Constant pressure heat capacity of gas Cp,liquid Constant pressure heat capacity of liquid IE (evaluated) Recommended ionization energy Pc Critical pressure T Temperature Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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