2-Propanol, 2-methyl-
- Formula: C4H10O
- Molecular weight: 74.1216
- IUPAC Standard InChIKey: DKGAVHZHDRPRBM-UHFFFAOYSA-N
- CAS Registry Number: 75-65-0
- 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. - Isotopologues:
- Other names: tert-Butyl alcohol; tert-Butanol; Ethanol, 1,1-Dimethyl-; Trimethylcarbinol; Trimethylmethanol; 1,1-Dimethylethanol; 2-Methyl-2-propanol; tert-C4H9OH; t-Butanol; tert-Butyl hydroxide; 2-Methylpropanol-2; 2-Methylpropan-2-ol; Alcool butylique tertiaire; Butanol tertiaire; t-Butyl hydroxide; Methanol, trimethyl-; NCI-C55367; 2-Methyl n-propan-2-ol; Methyl-2 propanol-2; Tert.-butyl alcohol
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Condensed phase thermochemistry data
Go To: Top, 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:
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 | -85.86 ± 0.20 | kcal/mol | Eqk | Wiberg and Hao, 1991 | Heat of hydration; ALS |
ΔfH°liquid | -85.87 ± 0.19 | kcal/mol | Ccb | Skinner and Snelson, 1960 | ALS |
ΔfH°liquid | -85.0 | kcal/mol | Eqk | Taft and Riesz, 1955 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -631.92 ± 0.19 | kcal/mol | Ccb | Skinner and Snelson, 1960 | Corresponding ΔfHºliquid = -85.86 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 45.29 | cal/mol*K | N/A | Parks, Kelley, et al., 1929 | Extrapolation bloew 90 K, 45.19 J/mol*K. Revision of previous data.; DH |
S°liquid | 47.20 | cal/mol*K | N/A | Parks and Anderson, 1926 | Extrapolation below 90 K, 53.35 J/mol*K.; DH |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -629.4 | kcal/mol | Ccb | Raley, Rust, et al., 1948 | Corresponding ΔfHºsolid = -88.4 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°solid,1 bar | 40.839 | cal/mol*K | N/A | Oetting F.L., 1963 | crystaline, I phase; DH |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
51.475 | 298.15 | Caceres-Alonso, Costas, et al., 1988 | DH |
53.031 | 299.15 | Okano, Ogawa, et al., 1988 | DH |
50.2 | 298. | De Visser, Perron, et al., 1977 | DH |
50.2 | 298.15 | De Visser, Perron, et al., 1977, 2 | T = 298.15, 313.15, 328.15 K.; DH |
53.75 | 298.15 | Murthy and Subrahmanyam, 1977 | DH |
52.25 | 298.15 | Skold, Suurkuusk, et al., 1976 | DH |
53.70 | 300. | Parks and Anderson, 1926 | T = 87 to 300 K. Value is unsmoothed experimental datum.; DH |
Constant pressure heat capacity of solid
Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
34.921 | 298.15 | Oetting F.L., 1963 | crystaline, I phase; T = 15 to 330 K.; DH |
Reaction thermochemistry data
Go To: Top, Condensed phase 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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
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: Cl- + C4H10O = (Cl- • C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 19. ± 4. | kcal/mol | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 27.4 | cal/mol*K | PHPMS | Hiraoka and Mizuse, 1987 | gas phase; M |
ΔrS° | 24.0 | cal/mol*K | PHPMS | Sieck, 1985 | gas phase; M |
ΔrS° | 23.4 | cal/mol*K | N/A | Larson and McMahon, 1984 | gas phase; Entropy change calculated or estimated; French, Ikuta, et al., 1982; M |
ΔrS° | 27. | cal/mol*K | PHPMS | Kebarle, 1977 | gas phase; M |
ΔrS° | 10.3 | cal/mol*K | N/A | Yamdagni and Kebarle, 1971 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 11.58 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
ΔrG° | 12.30 ± 0.30 | kcal/mol | TDAs | Sieck, 1985 | gas phase; B |
ΔrG° | 11.60 | kcal/mol | TDAs | Hiraoka and Mizuse, 1987 | gas phase; B |
ΔrG° | 11.1 ± 2.0 | kcal/mol | IMRE | Larson and McMahon, 1984, 2 | gas phase; B,M |
ΔrG° | 11.1 ± 2.0 | kcal/mol | TDAs | Yamdagni and Kebarle, 1971 | gas phase; B |
C4H9O- + =
By formula: C4H9O- + H+ = C4H10O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 374.7 ± 1.0 | kcal/mol | D-EA | Ramond, Davico, et al., 2000 | gas phase; B |
ΔrH° | 374.6 ± 2.1 | kcal/mol | G+TS | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrH° | 376.00 ± 0.70 | kcal/mol | CIDT | DeTuri and Ervin, 1999 | gas phase; B |
ΔrH° | 374.3 ± 2.0 | kcal/mol | CIDC | Haas and Harrison, 1993 | gas phase; Both metastable and 50 eV collision energy.; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 368.1 ± 1.1 | kcal/mol | H-TS | Ramond, Davico, et al., 2000 | gas phase; B |
ΔrG° | 368.0 ± 2.0 | kcal/mol | IMRE | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrG° | 367.7 ± 2.1 | kcal/mol | H-TS | Haas and Harrison, 1993 | gas phase; Both metastable and 50 eV collision energy.; B |
By formula: C4H9O- + C4H10O = (C4H9O- • C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 27.9 ± 2.9 | kcal/mol | N/A | Caldwell, Rozeboom, et al., 1984 | gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 29.3 | cal/mol*K | N/A | Caldwell, Rozeboom, et al., 1984 | gas phase; switching reaction(CH3O-)CH3OH, Entropy change calculated or estimated; re-evaluated using Meot-Ner(Mautner), 1986 and Paul and Kebarle, 1990; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 18.8 ± 2.0 | kcal/mol | IMRE | Caldwell, Rozeboom, et al., 1984 | gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M |
By formula: F- + C4H10O = (F- • C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 33.40 ± 0.70 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
ΔrH° | 33.3 ± 2.0 | kcal/mol | IMRE | Larson and McMahon, 1983 | gas phase; B,M |
ΔrH° | 32.7 ± 2.2 | kcal/mol | CIDT | DeTuri and Ervin, 1999 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 26.1 | 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° | 26.01 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
ΔrG° | 25.5 ± 2.0 | kcal/mol | IMRE | Larson and McMahon, 1983 | gas phase; B,M |
By formula: C3H9Sn+ + C4H10O = (C3H9Sn+ • C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 36.6 | kcal/mol | PHPMS | Stone and Splinter, 1984 | gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 32.4 | cal/mol*K | N/A | Stone and Splinter, 1984 | gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
19.6 | 525. | PHPMS | Stone and Splinter, 1984 | gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M |
By formula: C5H11O- + C4H10O = (C5H11O- • C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 27.4 ± 2.9 | kcal/mol | N/A | Caldwell, Rozeboom, et al., 1984 | gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 18.7 ± 2.0 | kcal/mol | IMRE | Caldwell, Rozeboom, et al., 1984 | gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B |
By formula: (Cl- • 2C4H10O) + C4H10O = (Cl- • 3C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 15.80 ± 0.30 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
ΔrH° | 13.7 ± 1.0 | kcal/mol | TDAs | Hiraoka and Mizuse, 1987 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 31.0 | cal/mol*K | PHPMS | Hiraoka and Mizuse, 1987 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 5.07 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
ΔrG° | 4.4 ± 1.0 | kcal/mol | TDAs | Hiraoka and Mizuse, 1987 | gas phase; B |
By formula: (Cl- • C4H10O) + C4H10O = (Cl- • 2C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16.90 ± 0.20 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
ΔrH° | 14.9 ± 1.0 | kcal/mol | TDAs | Hiraoka and Mizuse, 1987 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 25.8 | cal/mol*K | PHPMS | Hiraoka and Mizuse, 1987 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 7.36 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
ΔrG° | 7.2 ± 1.0 | kcal/mol | TDAs | Hiraoka and Mizuse, 1987 | gas phase; B |
By formula: (Cl- • 5C4H10O) + C4H10O = (Cl- • 6C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 11.4 ± 1.0 | kcal/mol | TDAs | Hiraoka and Mizuse, 1987 | gas phase; Estimated entropy; single temperature measurement; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 32. | cal/mol*K | N/A | Hiraoka and Mizuse, 1987 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1.8 ± 1.0 | kcal/mol | TDAs | Hiraoka and Mizuse, 1987 | gas phase; Estimated entropy; single temperature measurement; B |
By formula: CH6N+ + C4H10O = (CH6N+ • C4H10O)
Bond type: Hydrogen bonds of the type NH+-O between organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 22.9 | kcal/mol | PHPMS | Meot-Ner, 1984 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 26. | cal/mol*K | N/A | Meot-Ner, 1984 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
10.0 | 495. | PHPMS | Meot-Ner, 1984 | gas phase; Entropy change calculated or estimated; M |
By formula: I- + C4H10O = (I- • C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13.10 ± 0.30 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
ΔrH° | 12.1 ± 1.0 | kcal/mol | TDAs | Caldwell and Kebarle, 1984 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 18.7 | cal/mol*K | PHPMS | Caldwell and Kebarle, 1984 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 6.15 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
ΔrG° | 6.5 ± 1.0 | kcal/mol | TDAs | Caldwell and Kebarle, 1984 | gas phase; B |
By formula: CN- + C4H10O = (CN- • C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 18.1 ± 3.5 | kcal/mol | IMRE | Larson and McMahon, 1987 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 24.8 | 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° | 10.7 ± 2.3 | kcal/mol | IMRE | Larson and McMahon, 1987 | gas phase; B,M |
By formula: (Cl- • 3C4H10O) + C4H10O = (Cl- • 4C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 12.7 ± 1.0 | kcal/mol | TDAs | Hiraoka and Mizuse, 1987 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 31.3 | cal/mol*K | PHPMS | Hiraoka and Mizuse, 1987 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 3.3 ± 1.0 | kcal/mol | TDAs | Hiraoka and Mizuse, 1987 | gas phase; B |
By formula: (Cl- • 4C4H10O) + C4H10O = (Cl- • 5C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 11.9 ± 1.0 | kcal/mol | TDAs | Hiraoka and Mizuse, 1987 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 32.3 | cal/mol*K | PHPMS | Hiraoka and Mizuse, 1987 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 2.2 ± 1.0 | kcal/mol | TDAs | Hiraoka and Mizuse, 1987 | gas phase; B |
By formula: HS- + C4H10O = (HS- • C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16.80 ± 0.30 | kcal/mol | TDAs | Sieck and Meot-ner, 1989 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 19.9 | cal/mol*K | PHPMS | Sieck and Meot-ner, 1989 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 10.9 ± 1.2 | kcal/mol | TDAs | Sieck and Meot-ner, 1989 | gas phase; B |
By formula: NO2- + C4H10O = (NO2- • C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 19.60 ± 0.20 | kcal/mol | TDAs | Sieck, 1985 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 29.5 | cal/mol*K | PHPMS | Sieck, 1985 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 10.80 ± 0.30 | kcal/mol | TDAs | Sieck, 1985 | gas phase; B |
By formula: C5H5- + C4H10O = (C5H5- • C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 17.0 ± 1.0 | kcal/mol | TDAs | Meot-ner, 1988 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 32.0 | cal/mol*K | PHPMS | Meot-ner, 1988 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 7.4 ± 1.0 | kcal/mol | TDAs | Meot-ner, 1988 | gas phase; B |
By formula: Na+ + C4H10O = (Na+ • C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 28.0 ± 1.0 | kcal/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
ΔrH° | 27.8 ± 1.0 | kcal/mol | CIDT | Rodgers and Armentrout, 1999 | RCD |
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
21.4 | 298. | IMRE | McMahon and Ohanessian, 2000 | Anchor alanine=39.89; RCD |
+ 2 = C8H20FO2-
By formula: F- + 2C4H10O = C8H20FO2-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 22.00 ± 0.40 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 13.59 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
+ = C10H15OS-
By formula: C6H5S- + C4H10O = C10H15OS-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 14.60 ± 0.10 | kcal/mol | TDAs | Sieck and Meot-ner, 1989 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 7.20 ± 0.50 | kcal/mol | TDAs | Sieck and Meot-ner, 1989 | gas phase; B |
+ 2 = C8H20IO2-
By formula: I- + 2C4H10O = C8H20IO2-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 11.30 ± 0.40 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 4.32 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
+ 2 = C8H20BrO2-
By formula: Br- + 2C4H10O = C8H20BrO2-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 12.90 ± 0.40 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 5.65 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
+ 3 = C12H30BrO3-
By formula: Br- + 3C4H10O = C12H30BrO3-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 11.60 ± 0.50 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 4.33 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
+ = C4H10BrO-
By formula: Br- + C4H10O = C4H10BrO-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 15.80 ± 0.20 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 8.58 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
+ 3 = C12H30FO3-
By formula: F- + 3C4H10O = C12H30FO3-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 18.3 ± 1.0 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 7.81 | kcal/mol | TDAs | Bogdanov, Peschke, et al., 1999 | gas phase; B |
By formula: C6H5NO2- + C4H10O = (C6H5NO2- • C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16.4 | kcal/mol | PHPMS | Sieck, 1985 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 27.2 | cal/mol*K | PHPMS | Sieck, 1985 | gas phase; M |
+ = C4H9D10FO-
By formula: F- + C4H10O = C4H9D10FO-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrG° | 25.1 ± 2.0 | kcal/mol | IMRE | Wilkinson, Szulejko, et al., 1992 | gas phase; Reported relative to ROH..F-, 0.5 kcal/mol weaker.; B |
By formula: C4H8 + H2O = C4H10O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -12.775 | kcal/mol | Eqk | Eberz and Lucas, 1934 | gas phase; solvent: Aqueous; Heat of hydration; ALS |
By formula: C2H2O + C4H10O = C6H12O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -23.49 | kcal/mol | Cm | Rice and Greenberg, 1934 | liquid phase; ALS |
By formula: C4H10O = C4H8 + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 12.6 | kcal/mol | Eqk | Taft and Riesz, 1955 | liquid phase; ALS |
By formula: Li+ + C4H10O = (Li+ • C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 42.5 ± 2.4 | kcal/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
Gas phase ion energetics data
Go To: Top, 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 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
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 9.90 ± 0.03 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 191.8 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 184.6 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.90 ± 0.03 | PIPECO | Shao, Baer, et al., 1988 | LL |
9.97 ± 0.02 | PE | Cocksey, Eland, et al., 1971 | LLK |
10.23 | PE | Baker, Betteridge, et al., 1971 | LLK |
10.23 | PE | Baker, Betteridge, et al., 1971 | LLK |
10.26 | PE | Benoit and Harrison, 1977 | Vertical value; LLK |
10.25 ± 0.03 | PE | Peel and Willett, 1975 | Vertical value; LLK |
10.25 | PE | Robin and Kuebler, 1973 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C3H7O+ | 9.86 | CH3 | EI | Lossing, 1977 | LLK |
C3H7O+ | 10.1 ± 0.2 | CH3 | EI | Beauchamp, Caserio, et al., 1974 | LLK |
C3H7O+ | 9.87 ± 0.03 | CH3 | PI | Potapov and Sorokin, 1972 | LLK |
C3H7O+ | 9.87 | CH3 | EI | Potapov and Sorokin, 1970 | RDSH |
C3H7O+ | 10.2 | CH3 | EI | Harrison, Ivko, et al., 1966 | RDSH |
De-protonation reactions
C4H9O- + =
By formula: C4H9O- + H+ = C4H10O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 374.7 ± 1.0 | kcal/mol | D-EA | Ramond, Davico, et al., 2000 | gas phase; B |
ΔrH° | 374.6 ± 2.1 | kcal/mol | G+TS | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrH° | 376.00 ± 0.70 | kcal/mol | CIDT | DeTuri and Ervin, 1999 | gas phase; B |
ΔrH° | 374.3 ± 2.0 | kcal/mol | CIDC | Haas and Harrison, 1993 | gas phase; Both metastable and 50 eV collision energy.; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 368.1 ± 1.1 | kcal/mol | H-TS | Ramond, Davico, et al., 2000 | gas phase; B |
ΔrG° | 368.0 ± 2.0 | kcal/mol | IMRE | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrG° | 367.7 ± 2.1 | kcal/mol | H-TS | Haas and Harrison, 1993 | gas phase; Both metastable and 50 eV collision energy.; B |
References
Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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Larson and McMahon, 1983
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Strong hydrogen bonding in gas-phase anions. An ion cyclotron resonance determination of fluoride binding energetics to bronsted acids from gas-phase fluoride exchange equilibria measurements,
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Arshadi, Yamdagni, et al., 1970
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Stone and Splinter, 1984
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A high-pressure mass spectrometric study of the binding of (CH3)3Sn+ to lewis bases in the gas phase,
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Caldwell and Kebarle, 1984
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Binding energies and structural effects in halide anion-ROH and -RCOOH complexes from gas phase equilibria measurements,
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Larson and McMahon, 1987
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Hydrogen bonding in gas phase anions. The energetics of interaction between cyanide ion and bronsted acids,
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Payzant, Yamdagni, et al., 1971
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Sieck and Meot-ner, 1989
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Ionic Hydrogen Bond and Ion Solvation. 8. RS-..HOR Bond Strengths. Correlation with Acidities.,
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Meot-ner, 1988
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The Ionic Hydrogen Bond and Solvation. 7. Interaction Energies of Carbanions with Solvent Molecules,
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Noncovalent Metal-Ligand Bond Energies as Studied by Threshold Collision-Induced Dissociation,
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An Experimental and Ab Initio Study of the Nature of the Binding in Gas-Phase Complexes of Sodium Ions,
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The hydration of unsaturated compounds. II. The equilibrium between i-butene and t-butanol and the free energy of hydration of i-butene,
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Predictive value of proton affinity. Ionization energy correlations involving oxygenated molecules,
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Photoelectron spectroscopic studies of the higher alcohols,
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Notes
Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy Cp,liquid Constant pressure heat capacity of liquid Cp,solid Constant pressure heat capacity of solid IE (evaluated) Recommended ionization energy S°liquid Entropy of liquid at standard conditions S°solid,1 bar Entropy of solid at standard conditions (1 bar) T Temperature ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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