Pyrrole
- Formula: C4H5N
- Molecular weight: 67.0892
- IUPAC Standard InChIKey: KAESVJOAVNADME-UHFFFAOYSA-N
- CAS Registry Number: 109-97-7
- 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: 1H-Pyrrole; Azole; Divinylenimine; Imidole; Monopyrrole; Pyrrol; 1-Aza-2,4-cyclopentadiene; Divinyleneimine; Parzate; NSC 62777
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry 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:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 34.23 | kcal/mol | N/A | Zaheeruddin and Lodhi, 1991 | Value computed using ΔfHliquid° value of 98.0 kj/mol from Zaheeruddin and Lodhi, 1991 and ΔvapH° value of 45.2 kj/mol from Scott, Berg, et al., 1967.; DRB |
ΔfH°gas | 25.88 ± 0.12 | kcal/mol | Ccb | Scott, Berg, et al., 1967 | ALS |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry 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 | Ccb | Zaheeruddin and Lodhi, 1991 | uncertain value: 23.43 kcal/mol; ALS | ||
ΔfH°liquid | 15.1 ± 0.1 | kcal/mol | Ccb | Scott, Berg, et al., 1967 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | Ccb | Zaheeruddin and Lodhi, 1991 | uncertain value: -570.425 kcal/mol; ALS | ||
ΔcH°liquid | -562.07 ± 0.08 | kcal/mol | Ccb | Scott, Berg, et al., 1967 | ALS |
ΔcH°liquid | -561.6 | kcal/mol | Ccb | Zimmerman and Geisenfelder, 1961 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 37.390 | cal/mol*K | N/A | Scott, Berg, et al., 1967 | DH |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
30.531 | 298.15 | Scott, Berg, et al., 1967 | T = 11 to 365 K.; DH |
Phase change data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 403. ± 1. | K | AVG | N/A | Average of 15 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 250.15 | K | N/A | Rosso and Carbonnel, 1973 | Uncertainty assigned by TRC = 0.6 K; TRC |
Tfus | 254.7 | K | N/A | Timmermans and Hennaut-Roland, 1955 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 249.7 | K | N/A | Anonymous, 1942 | Uncertainty assigned by TRC = 0.2 K; TRC |
Tfus | 238.8 | K | N/A | Milazzo, 1941 | Uncertainty assigned by TRC = 0.4 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 249.7300 | K | N/A | Scott, Berg, et al., 1967, 2 | Uncertainty assigned by TRC = 0.07 K; by extrapolation of 1/f to zero; TRC |
Ttriple | 249.74 | K | N/A | Helm, Lanum, et al., 1958 | Uncertainty assigned by TRC = 0.03 K; measured in calorimeter at U.S. Bur. Mines, Bartlesville, OK; TRC |
Ttriple | 249.74 | K | N/A | McCullough and Waddington, 1957 | Uncertainty assigned by TRC = 0.06 K; IPTS-48, from freezing curve; TRC |
Ttriple | 249.74 | K | N/A | McCullough and Waddington, 1957 | Uncertainty assigned by TRC = 0.06 K; IPTS-48, from heating curve; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 639.8 | K | N/A | Majer and Svoboda, 1985 | |
Tc | 639.7 | K | N/A | Cheng, McCoubrey, et al., 1962 | Uncertainty assigned by TRC = 1.5 K; extrapolated to zero time to correct for decomposition cal. vs NPL thermometer.; TRC |
Tc | 625.15 | K | N/A | Glaser and Ruland, 1957 | Uncertainty assigned by TRC = 2. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 56.000 | atm | N/A | Glaser and Ruland, 1957 | Uncertainty assigned by TRC = 3.0000 atm; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 10. ± 1. | kcal/mol | AVG | N/A | Average of 6 values; Individual data points |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
9.261 | 403. | N/A | Majer and Svoboda, 1985 | |
10.2 | 300. | N/A | Kimizuka and Szydlowski, 1992 | Based on data from 285. to 329. K.; AC |
10.2 | 353. | A,EB,IP | Stephenson and Malanowski, 1987 | Based on data from 338. to 440. K. See also Osborn and Douslin, 1968 and Scott, Berg, et al., 1967.; AC |
10.0 | 328. | I | Eon, Pommier, et al., 1971 | Based on data from 313. to 373. K.; AC |
10.0 | 348. | N/A | Stull, 1947 | Based on data from 333. to 373. K.; 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 |
---|---|---|---|---|---|
362. to 403. | 15.0 | 0.2964 | 639.8 | 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 | Comment |
---|---|---|---|---|---|
333.4 to 373.5 | 5.31520 | 2074.447 | -9.186 | Eon, Pommier, et al., 1971 | Coefficents calculated by NIST from author's data. |
338.82 to 439.26 | 4.42194 | 1506.877 | -62.155 | Osborn and Douslin, 1968 |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
1.8900 | 249.74 | Scott, Berg, et al., 1967 | DH |
1.89 | 249.7 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
7.567 | 249.74 | Scott, Berg, et al., 1967 | DH |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change 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. 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: C4H4N- + H+ = C4H5N
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 359.54 ± 0.25 | kcal/mol | D-EA | Gianola, Ichino, et al., 2004 | gas phase; B |
ΔrH° | 358.6 ± 2.2 | kcal/mol | G+TS | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrH° | 359.6 ± 2.9 | kcal/mol | G+TS | Cumming and Kebarle, 1978 | gas phase; B |
ΔrH° | 358.6 ± 5.0 | kcal/mol | EIAE | Muftakhov, Vasil'ev, et al., 1999 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 350.9 ± 2.0 | kcal/mol | IMRE | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrG° | 351.8 ± 2.0 | kcal/mol | IMRE | Cumming and Kebarle, 1978 | gas phase; B |
By formula: CN- + C4H5N = (CN- • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 23.4 ± 1.0 | kcal/mol | TDAs | Meot-ner, 1988 | gas phase; B,M |
ΔrH° | 19.5 ± 3.5 | kcal/mol | IMRE | Larson and McMahon, 1987 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 27.1 | cal/mol*K | PHPMS | Meot-ner, 1988 | gas phase; M |
ΔrS° | 23.8 | cal/mol*K | N/A | Larson and McMahon, 1987 | gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 15.3 ± 1.0 | kcal/mol | TDAs | Meot-ner, 1988 | gas phase; B |
ΔrG° | 12.3 ± 2.3 | kcal/mol | IMRE | Larson and McMahon, 1987 | gas phase; B,M |
By formula: F- + C4H5N = (F- • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 34.2 ± 2.0 | kcal/mol | IMRE | Larson and McMahon, 1983 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 25.5 | cal/mol*K | N/A | Larson and McMahon, 1983 | gas phase; switching reaction(F-)H2O, Entropy change calculated or estimated; Arshadi, Yamdagni, et al., 1970; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 26.6 ± 2.0 | kcal/mol | IMRE | Larson and McMahon, 1983 | gas phase; B,M |
By formula: Cl- + C4H5N = (Cl- • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 18.8 ± 2.0 | kcal/mol | IMRE | Larson and McMahon, 1984 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 11.8 ± 2.0 | kcal/mol | IMRE | Larson and McMahon, 1984 | gas phase; B |
ΔrG° | 14.00 | kcal/mol | TDEq | French, Ikuta, et al., 1982 | gas phase; B |
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
11.6 | 421. | PHPMS | French, Ikuta, et al., 1982 | gas phase; M |
By formula: HS- + C4H5N = (HS- • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 23.0 ± 1.0 | kcal/mol | TDAs | Meot-ner, 1988 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 24.4 | cal/mol*K | PHPMS | Meot-ner, 1988 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 15.7 ± 1.0 | kcal/mol | TDAs | Meot-ner, 1988 | gas phase; B |
By formula: C4H4N- + C4H5N = (C4H4N- • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 26.5 ± 1.0 | kcal/mol | TDAs | Meot-ner, 1988, 2 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 35.2 | cal/mol*K | PHPMS | Meot-ner, 1988, 2 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 16.3 ± 1.0 | kcal/mol | TDAs | Meot-ner, 1988, 2 | gas phase; B |
By formula: C2H3O2- + C4H5N = (C2H3O2- • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 24.0 ± 1.0 | kcal/mol | TDAs | Meot-ner, 1988 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 25.1 | cal/mol*K | PHPMS | Meot-ner, 1988 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 16.5 ± 1.0 | kcal/mol | TDAs | Meot-ner, 1988 | gas phase; B |
By formula: (C4H5N+ • C4H5N) + C4H5N = (C4H5N+ • 2C4H5N)
Bond type: Charge transfer bond (positive ion)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13.8 | kcal/mol | PHPMS | Hiraoka, Takimoto, et al., 1987 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 29.2 | cal/mol*K | PHPMS | Hiraoka, Takimoto, et al., 1987 | gas phase; M |
By formula: C4H5N+ + C4H5N = (C4H5N+ • C4H5N)
Bond type: Charge transfer bond (positive ion)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16.5 | kcal/mol | PHPMS | Hiraoka, Takimoto, et al., 1987 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 20.3 | cal/mol*K | PHPMS | Hiraoka, Takimoto, et al., 1987 | gas phase; M |
By formula: (C4H6N+ • C4H5N) + C4H5N = (C4H6N+ • 2C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 12.3 | kcal/mol | PHPMS | Hiraoka, Takimoto, et al., 1987 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 30.4 | cal/mol*K | PHPMS | Hiraoka, Takimoto, et al., 1987 | gas phase; M |
By formula: (C4H4N- • C4H5N) + C4H5N = (C4H4N- • 2C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 17.1 | kcal/mol | PHPMS | Meot-ner, 1988, 2 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 31.2 | cal/mol*K | PHPMS | Meot-ner, 1988, 2 | gas phase; M |
By formula: C4H6N+ + C4H5N = (C4H6N+ • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16.8 | kcal/mol | PHPMS | Hiraoka, Takimoto, et al., 1987 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 24.7 | cal/mol*K | PHPMS | Hiraoka, Takimoto, et al., 1987 | gas phase; M |
By formula: (C2H3O2- • C4H5N) + C4H5N = (C2H3O2- • 2C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 17.9 | kcal/mol | PHPMS | Meot-ner, 1988 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 24.2 | cal/mol*K | PHPMS | Meot-ner, 1988 | gas phase; M |
By formula: CH6N+ + C4H5N = (CH6N+ • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 18.6 | kcal/mol | PHPMS | Deakyne and Meot-Ner (Mautner), 1985 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 21.0 | cal/mol*K | PHPMS | Deakyne and Meot-Ner (Mautner), 1985 | gas phase; M |
By formula: C6H11NO3 + C4H5N = (C6H11NO3 • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 24.0 | kcal/mol | PHPMS | Meot-Ner (Mautner), 1988 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 32.1 | cal/mol*K | PHPMS | Meot-Ner (Mautner), 1988 | gas phase; M |
By formula: (Fe+ • C4H5N) + C4H5N = (Fe+ • 2C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 41.6 | kcal/mol | RAK | Gapeev and Yang, 2000 | RCD |
By formula: (Cr+ • C4H5N) + C4H5N = (Cr+ • 2C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 34.9 | kcal/mol | RAK | Gapeev and Yang, 2000 | RCD |
By formula: (Mn+ • C4H5N) + C4H5N = (Mn+ • 2C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 27.0 | kcal/mol | RAK | Gapeev and Yang, 2000 | RCD |
By formula: (Ni+ • C4H5N) + C4H5N = (Ni+ • 2C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 47.0 | kcal/mol | RAK | Gapeev and Yang, 2000 | RCD |
By formula: (Co+ • C4H5N) + C4H5N = (Co+ • 2C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 46.4 | kcal/mol | RAK | Gapeev and Yang, 2000 | RCD |
By formula: (Cu+ • C4H5N) + C4H5N = (Cu+ • 2C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 44.0 | kcal/mol | RAK | Gapeev and Yang, 2000 | RCD |
By formula: Li+ + C4H5N = (Li+ • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 42.3 ± 4.0 | kcal/mol | CIDT | Huang and Rodgers, 2002 | RCD |
By formula: Na+ + C4H5N = (Na+ • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 24.3 ± 1.1 | kcal/mol | CIDT | Huang and Rodgers, 2002 | RCD |
By formula: K+ + C4H5N = (K+ • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 20.0 ± 1.0 | kcal/mol | CIDT | Huang and Rodgers, 2002 | RCD |
By formula: V+ + C4H5N = (V+ • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | >41. | kcal/mol | RAK | Gapeev and Yang, 2000 | RCD |
By formula: Ni+ + C4H5N = (Ni+ • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | >68. | kcal/mol | RAK | Gapeev and Yang, 2000 | RCD |
By formula: W+ + C4H5N = (W+ • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | >50. | kcal/mol | RAK | Gapeev and Yang, 2000 | RCD |
By formula: Co+ + C4H5N = (Co+ • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | >66. | kcal/mol | RAK | Gapeev and Yang, 2000 | RCD |
By formula: Mo+ + C4H5N = (Mo+ • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | >69. | kcal/mol | RAK | Gapeev and Yang, 2000 | RCD |
By formula: Fe+ + C4H5N = (Fe+ • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 54.0 | kcal/mol | RAK | Gapeev and Yang, 2000 | RCD |
By formula: Cr+ + C4H5N = (Cr+ • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 42.5 | kcal/mol | RAK | Gapeev and Yang, 2000 | RCD |
By formula: Mn+ + C4H5N = (Mn+ • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 42.3 | kcal/mol | RAK | Gapeev and Yang, 2000 | RCD |
By formula: Mg+ + C4H5N = (Mg+ • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 44.0 | kcal/mol | RAK | Gapeev and Yang, 2000 | RCD |
By formula: Al+ + C4H5N = (Al+ • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 44.0 | kcal/mol | RAK | Gapeev and Yang, 2000 | RCD |
By formula: Cu+ + C4H5N = (Cu+ • C4H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 59.0 | kcal/mol | RAK | Gapeev and Yang, 2000 | RCD |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Zaheeruddin and Lodhi, 1991
Zaheeruddin, M.; Lodhi, Z.H.,
Enthalpies of formation of some cyclic compounds,
Phys. Chem. (Peshawar Pak.), 1991, 10, 111-118. [all data]
Scott, Berg, et al., 1967
Scott, D.W.; Berg, W.T.; Hossenlopp, I.A.; Hubbard, W.N.; Messerly, J.F.; Todd, S.S.; Douslin, D.R.; McCullough, J.P.; Waddington, G.,
Pyrrole: Chemical thermodynamic properties,
J. Phys. Chem., 1967, 71, 2263-2270. [all data]
Zimmerman and Geisenfelder, 1961
Zimmerman, H.; Geisenfelder, H.,
Uber die Mesomerieenergie von Azolen,
Z. Electrochem., 1961, 65, 368-371. [all data]
Rosso and Carbonnel, 1973
Rosso, M.J.-C.; Carbonnel, L.,
Hydrates + cubic clathrates generated by the nitrogenous meterocycles: the binary systems water + propylene imine and water + pyrrole,
C. R. Seances Acad. Sci., Ser. C, 1973, 277, 259. [all data]
Timmermans and Hennaut-Roland, 1955
Timmermans, J.; Hennaut-Roland, M.,
Work of the International Bureau of Physical-Chemical Standards. IX. The Physical Constants of Twenty Organic Compounds,
J. Chim. Phys. Phys.-Chim. Biol., 1955, 52, 223. [all data]
Anonymous, 1942
Anonymous, R.,
, Am. Pet. Inst. Res. Proj. 6, Natl. Bur. Stand., 1942. [all data]
Milazzo, 1941
Milazzo, G.,
Boll. Sci. Facolta Chim. Ind. Bologna, 1941, 94. [all data]
Scott, Berg, et al., 1967, 2
Scott, D.W.; Berg, W.T.; Hossenlopp, I.A.; Hubbard, W.N.; Messerly, J.F.; Todd, S.S.; Douslin, D.R.; McCullough, J.P.; Waddington, G.,
Pyrrole: Chemical Thermodynamic Properties,
J. Phys. Chem., 1967, 71, 2263. [all data]
Helm, Lanum, et al., 1958
Helm, R.V.; Lanum, W.J.; Cook, G.L.; Ball, J.S.,
Purification and Properties of Pyrrole, Pyrrolidine, Pyridine and 2-Methylpyridine,
J. Phys. Chem., 1958, 62, 858. [all data]
McCullough and Waddington, 1957
McCullough, J.P.; Waddington, G.,
Melting-point purity determinations: limitations as evidenced by calorimetric studies in the melting region,
Anal. Chim. Acta, 1957, 17, 80. [all data]
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]
Cheng, McCoubrey, et al., 1962
Cheng, D.C.H.; McCoubrey, J.C.; Phillips, D.G.,
Critical Temperatures of Some Organic Cyclic Compounds,
Trans. Faraday Soc., 1962, 58, 224. [all data]
Glaser and Ruland, 1957
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Untersuchungsen über dampfdruckkurven und kritische daten einiger technisch wichtiger organischer substanzen,
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Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid Pc Critical pressure S°liquid Entropy of liquid at standard conditions T Temperature Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature 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 - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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