Tetrafluoromethane
- Formula: CF4
- Molecular weight: 88.0043
- IUPAC Standard InChIKey: TXEYQDLBPFQVAA-UHFFFAOYSA-N
- CAS Registry Number: 75-73-0
- 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. - Other names: Carbon tetrafluoride; Methane, tetrafluoro-; Arcton 0; Carbon fluoride (CF4); Freon 14; FC 14; Perfluoromethane; CF4; Halon 14; Carbon fluoride; F 14; Halocarbon 14; R 14; UN 1982; Refrigerant 14; CFC 14; R 14 (Refrigerant); Refrigerant R 14; Methane, tetrafluo-
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Gas phase thermochemistry data
Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Gas Chromatography, 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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -930. ± 20. | kJ/mol | AVG | N/A | Average of 12 out of 13 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 261.41 | J/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1969 |
Gas Phase Heat Capacity (Shomate Equation)
Cp° = A + B*t + C*t2 + D*t3 +
E/t2
H° − H°298.15= A*t + B*t2/2 +
C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 −
E/(2*t2) + G
Cp = heat capacity (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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Temperature (K) | 298. to 1000. | 1000. to 6000. |
---|---|---|
A | 15.96778 | 106.2221 |
B | 210.3318 | 1.076122 |
C | -189.4657 | -0.223192 |
D | 62.20227 | 0.015753 |
E | -0.217317 | -8.340679 |
F | -946.4877 | -987.7755 |
G | 224.6766 | 355.9764 |
H | -933.1994 | -933.1994 |
Reference | Chase, 1998 | Chase, 1998 |
Comment | Data last reviewed in June, 1969 | Data last reviewed in June, 1969 |
Phase change data
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Gas Chromatography, 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
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 145.1 ± 0.2 | K | AVG | N/A | Average of 9 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 89. | K | N/A | Streng, 1971 | Uncertainty assigned by TRC = 1.5 K; TRC |
Tfus | 89.5 | K | N/A | Thorp and Scott, 1956 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 86.85 | K | N/A | Ruff and Keim, 1930 | Uncertainty assigned by TRC = 1. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 89.4 ± 0.8 | K | AVG | N/A | Average of 7 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 227.5 | K | N/A | Altunin, Geller, et al., 1987 | Uncertainty assigned by TRC = 0.1 K; TRC |
Tc | 227.5 | K | N/A | Chari, 1960 | Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 37.45 | bar | N/A | Altunin, Geller, et al., 1987 | Uncertainty assigned by TRC = 0.10 bar; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Vc | 0.142 | l/mol | N/A | Terry, Lynch, et al., 1969 | Uncertainty assigned by TRC = 800. l/mol; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 7.155 | mol/l | N/A | Altunin, Geller, et al., 1987 | Uncertainty assigned by TRC = 0.01 mol/l; TRC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
11.814 | 145.12 | N/A | Smith and Pace, 1969 | P = 101.325 kPa.; DH |
12.1 | 212. | A | Stephenson and Malanowski, 1987 | Based on data from 195. to 227. K.; AC |
12.3 | 148. | A | Stephenson and Malanowski, 1987 | Based on data from 89. to 163. K.; AC |
11.9 | 182. | A | Stephenson and Malanowski, 1987 | Based on data from 160. to 197. K.; AC |
12.4 | 131. | N/A | Smith and Pace, 1969 | Based on data from 116. to 146. K.; AC |
12.8 | 131. | N/A | Menzel and Mohry, 1933 | Based on data from 93. to 146. K. See also Stephenson and Malanowski, 1987.; AC |
Entropy of vaporization
ΔvapS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
81.41 | 145.12 | Smith and Pace, 1969 | P; DH |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
121.59 to 135.39 | 3.32027 | 376.716 | -31.901 | Regnier, 1972 | Coefficents calculated by NIST from author's data. |
89.71 to 101.46 | 0.63481 | 103.578 | -61.461 | Smith and Pace, 1969 | Coefficents calculated by NIST from author's data. |
92.51 to 145.87 | 4.1682 | 556.616 | -11.43 | Menzel and Mohry, 1933 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
14.7 | 88. | N/A | Simon, Knobler, et al., 1967 | Based on data from 86. to 89. K.; AC |
17.0 | 76. | N/A | Bondi, 1963 | AC |
14.0 | 83. | A | Menzel and Mohry, 1933 | Based on data from 80. to 86. K.; AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
0.71 | 89.56 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
22.43 | 76.27 | Domalski and Hearing, 1996 | CAL |
7.95 | 89.56 | ||
21.4 | 76.1 | ||
7.7 | 88.4 | ||
19.2 | 76.1 | ||
7.9 | 89.5 |
Enthalpy of phase transition
ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
1.4623 | 76.09 | crystaline, II | crystaline, I | Enokida, Shinoda, et al., 1969 | DH |
0.7054 | 89.529 | crystaline, I | liquid | Enokida, Shinoda, et al., 1969 | DH |
1.7092 | 76.27 | crystaline, II | crystaline, I | Smith and Pace, 1969 | DH |
0.7121 | 89.56 | crystaline, I | liquid | Smith and Pace, 1969 | DH |
1.7343 | 76.09 | crystaline, II | crystaline, I | Kostryukov, Samorukov, et al., 1958 | DH |
0.69371 | 88.44 | crystaline, I | liquid | Kostryukov, Samorukov, et al., 1958 | DH |
Entropy of phase transition
ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
19.20 | 76.09 | crystaline, II | crystaline, I | Enokida, Shinoda, et al., 1969 | DH |
7.87 | 89.529 | crystaline, I | liquid | Enokida, Shinoda, et al., 1969 | DH |
22.41 | 76.27 | crystaline, II | crystaline, I | Smith and Pace, 1969 | DH |
7.95 | 89.56 | crystaline, I | liquid | Smith and Pace, 1969 | DH |
21.38 | 76.09 | crystaline, II | crystaline, I | Kostryukov, Samorukov, et al., 1958 | DH |
7.74 | 88.44 | crystaline, I | liquid | Kostryukov, Samorukov, et al., 1958 | DH |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Gas Chromatography, 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:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
MS - José A. Martinho Simões
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: (F- • 4CF4) + CF4 = (F- • 5CF4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 10. | kJ/mol | PHPMS | Hiraoka, Nasu, et al., 1995 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 79. | J/mol*K | N/A | Hiraoka, Nasu, et al., 1995 | gas phase; Entropy change calculated or estimated; M |
By formula: (CF3- • 3CF4) + CF4 = (CF3- • 4CF4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 14. | kJ/mol | PHPMS | Hiraoka, Nasu, et al., 1995 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 110. | J/mol*K | N/A | Hiraoka, Nasu, et al., 1995 | gas phase; Entropy change calculated or estimated; M |
By formula: CF4 + 2H2O = CO2 + 4HF
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -174. ± 4.2 | kJ/mol | Cm | Good, Scott, et al., 1956 | gas phase; HF has 10 moles H2O, see Scott, Good, et al., 1955; ALS |
ΔrH° | -174. ± 4.2 | kJ/mol | Cm | Scott, Good, et al., 1955 | gas phase; Heat of hydrolysis; ALS |
By formula: (CF3+ • 2CF4) + CF4 = (CF3+ • 3CF4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 12. | kJ/mol | PHPMS | Hiraoka, Nasu, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 88. | J/mol*K | PHPMS | Hiraoka, Nasu, et al., 1996 | gas phase; M |
By formula: (CF3+ • 3CF4) + CF4 = (CF3+ • 4CF4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 12. | kJ/mol | PHPMS | Hiraoka, Nasu, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 84. | J/mol*K | PHPMS | Hiraoka, Nasu, et al., 1996 | gas phase; M |
By formula: (CF3+ • CF4) + CF4 = (CF3+ • 2CF4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 21. | kJ/mol | PHPMS | Hiraoka, Nasu, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 92. | J/mol*K | PHPMS | Hiraoka, Nasu, et al., 1996 | gas phase; M |
By formula: (CHF4+ • 2CF4) + CF4 = (CHF4+ • 3CF4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 9.6 | kJ/mol | PHPMS | Hiraoka, Nasu, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 67. | J/mol*K | PHPMS | Hiraoka, Nasu, et al., 1996 | gas phase; M |
By formula: (CHF4+ • CF4) + CF4 = (CHF4+ • 2CF4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 12. | kJ/mol | PHPMS | Hiraoka, Nasu, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 46. | J/mol*K | PHPMS | Hiraoka, Nasu, et al., 1996 | gas phase; M |
By formula: (F- • 2CF4) + CF4 = (F- • 3CF4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 17. | kJ/mol | PHPMS | Hiraoka, Nasu, et al., 1995 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 71. | J/mol*K | PHPMS | Hiraoka, Nasu, et al., 1995 | gas phase; M |
By formula: (F- • 3CF4) + CF4 = (F- • 4CF4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16. | kJ/mol | PHPMS | Hiraoka, Nasu, et al., 1995 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 79. | J/mol*K | PHPMS | Hiraoka, Nasu, et al., 1995 | gas phase; M |
By formula: (CF3- • 2CF4) + CF4 = (CF3- • 3CF4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 14. | kJ/mol | PHPMS | Hiraoka, Nasu, et al., 1995 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 110. | J/mol*K | PHPMS | Hiraoka, Nasu, et al., 1995 | gas phase; M |
By formula: (F- • CF4) + CF4 = (F- • 2CF4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 25. | kJ/mol | PHPMS | Hiraoka, Nasu, et al., 1995 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 92. | J/mol*K | PHPMS | Hiraoka, Nasu, et al., 1995 | gas phase; M |
By formula: (CF3- • CF4) + CF4 = (CF3- • 2CF4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 14. | kJ/mol | PHPMS | Hiraoka, Nasu, et al., 1995 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 100. | J/mol*K | PHPMS | Hiraoka, Nasu, et al., 1995 | gas phase; M |
By formula: C4H9+ + CF4 = (C4H9+ • CF4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 14. | kJ/mol | PHPMS | Sharma, Meza de Hojer, et al., 1985 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 43.5 | J/mol*K | PHPMS | Sharma, Meza de Hojer, et al., 1985 | gas phase; M |
By formula: CF3+ + CF4 = (CF3+ • CF4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 28. | kJ/mol | PHPMS | Hiraoka, Nasu, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 79. | J/mol*K | PHPMS | Hiraoka, Nasu, et al., 1996 | gas phase; M |
By formula: CHF4+ + CF4 = (CHF4+ • CF4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 21. | kJ/mol | PHPMS | Hiraoka, Nasu, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 84. | J/mol*K | PHPMS | Hiraoka, Nasu, et al., 1996 | gas phase; M |
By formula: F- + CF4 = (F- • CF4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 27. | kJ/mol | PHPMS | Hiraoka, Nasu, et al., 1995 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 92. | J/mol*K | PHPMS | Hiraoka, Nasu, et al., 1995 | gas phase; M |
By formula: CF3- + CF4 = (CF3- • CF4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 15. | kJ/mol | PHPMS | Hiraoka, Nasu, et al., 1995 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 92. | J/mol*K | PHPMS | Hiraoka, Nasu, et al., 1995 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -45.6 ± 9.2 | kJ/mol | Eqk | Amphlett, Dacey, et al., 1971 | gas phase; Heat of Decomposition third law at 1200 K; ALS |
By formula: 2C2F11N5 = 4CF4 + 5N2 + 3F2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -3009. ± 13. | kJ/mol | Cm | Sinke, Thompson, et al., 1967 | gas phase; Energy of explosion; ALS |
CF5N = + 0.5
+ 0.5
By formula: CF5N = CF4 + 0.5N2 + 0.5F2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -226. ± 2. | kJ/mol | Ccb | Walker, 1972 | gas phase; Decompostion reaction; ALS |
+ 0.5
+ 0.5
= CF5N
By formula: CF4 + 0.5N2 + 0.5F2 = CF5N
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 226. ± 2. | kJ/mol | Ccb | Walker, 1972 | gas phase; Decompostion reaction; ALS |
By formula: 2CF7N3 = 2CF4 + 3N2 + 3F2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -1467. | kJ/mol | Cm | Sinke, Thompson, et al., 1967 | gas phase; Energy of explosion; ALS |
By formula: 2CF5N3 = 2CF4 + 3N2 + F2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -2059. | kJ/mol | Cm | Sinke, Thompson, et al., 1967 | gas phase; Energy of explosion; ALS |
By formula: CF8N4 = CF4 + 2N2 + 2F2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -935.1 | kJ/mol | Cm | Sinke, Thompson, et al., 1967 | gas phase; Energy of explosion; ALS |
By formula: CF6N2 = CF4 + N2 + F2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -478.2 | kJ/mol | Cm | Sinke, Thompson, et al., 1967 | gas phase; Energy of explosion; ALS |
By formula: C5O5W (g) + CF4 (g) = C6F4O5W (g)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | <-20.9 | kJ/mol | EqG | Brown, Ishikawa, et al., 1990 | Temperature range: ca. 300-350 K; MS |
By formula: 3C2F3N + 5F3N = 6CF4 + 4N2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -3449.3 ± 0.92 | kJ/mol | Eqk | Walker, Sinke, et al., 1970 | gas phase; ALS |
By formula: 4Na + CF4 = C + 4FNa
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -1362. ± 9.2 | kJ/mol | Ccb | Vorob'ev and Skuratov, 1960 | gas phase; ALS |
By formula: CF4 + 4HF = CH4 + 4F2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -1922. ± 13. | kJ/mol | Cm | Jessup, McCoskey, et al., 1955 | gas phase; ALS |
By formula: 3C2F6 + 2F3N = 6CF4 + N2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -1304. ± 13. | kJ/mol | Ccb | Sinke, 1966 | gas phase; ALS |
By formula: (CHF4+ • 3CF4) + CF4 = (CHF4+ • 4CF4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 9.6 | kJ/mol | PHPMS | Hiraoka, Nasu, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -1037.3 | kJ/mol | Ccb | Domalski and Armstrong, 1967 | solid phase; ALS |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Gas Chromatography, 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:
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
LL - Sharon G. Lias and Joel F. Liebman
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | ≤14.7 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 529.3 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 503.7 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
16.2 ± 0.1 | EI | Kime, Driscoll, et al., 1987 | LBLHLM |
15.3 | PE | Novak, Potts, et al., 1985 | LBLHLM |
16.2 | PE | Carlson, Fahlman, et al., 1984 | LBLHLM |
≤14.7 | EVAL | Rosenstock, Draxl, et al., 1977 | LLK |
16.5 | PE | Lloyd and Roberts, 1975 | LLK |
15.7 | PE | Lloyd and Roberts, 1975 | LLK |
16.2 | PE | Bieri, Asbrink, et al., 1981 | Vertical value; LLK |
16.26 | PE | Uehara, Saito, et al., 1973 | Vertical value; LLK |
16.25 ± 0.04 | PE | Jonas, Schweitzer, et al., 1973 | Vertical value; LLK |
16.20 | EI | Harshbarger, Robin, et al., 1973 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C+ | 31.5 ± 0.5 | ? | EI | Dibeler, Reese, et al., 1956 | RDSH |
CF+ | 22.6 ± 0.5 | ? | EI | Dibeler, Reese, et al., 1956 | RDSH |
CF2+ | 20.3 ± 0.5 | ? | EI | Dibeler, Reese, et al., 1956 | RDSH |
CF3+ | 14.24 ± 0.07 | F | END | Fischer and Armentrout, 1990 | LL |
CF3+ | 14.2 ± 0.1 | F | DER | Tichy, Javahery, et al., 1987 | LBLHLM |
CF3+ | 14.7 ± 0.3 | F | PI | Powis, 1980 | LLK |
CF3+ | 14.9 ± 0.1 | F | PIPECO | Simm, Danby, et al., 1975 | LLK |
CF3+ | ≤14.84 ± 0.05 | F | PIPECO | Brehm, Frey, et al., 1974 | LLK |
CF3+ | ≤15.35 | F | PI | Walter, Lifshitz, et al., 1969 | RDSH |
CF3+ | 15.52 ± 0.02 | F | PI | Noutary, 1968 | RDSH |
CF3+ | 15.56 ± 0.01 | F | PI | Cook and Ching, 1965 | RDSH |
F+ | 24.0 ± 1.0 | ? | EI | Bibby, Toubelis, et al., 1965 | RDSH |
IR Spectrum
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Gas Chromatography, References, Notes
Data compiled by: Coblentz Society, Inc.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Data compiled by: Pamela M. Chu, Franklin R. Guenther, George C. Rhoderick, and Walter J. Lafferty
- gas; IFS66V (Bruker); 3-Term B-H Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution - gas; IFS66V (Bruker); Boxcar Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution - gas; IFS66V (Bruker); Happ Genzel Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution - gas; IFS66V (Bruker); NB Strong Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution - gas; IFS66V (Bruker); Triangular Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Vibrational and/or electronic energy levels, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
NIST MS number | 701 |
Vibrational and/or electronic energy levels
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Takehiko Shimanouchi
Symmetry: Td Symmetry Number σ = 12
Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
---|---|---|---|---|---|---|---|---|---|---|
Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
a1 | 1 | Sym str | 909 | B | ia | 908.5 S | gas | |||
e | 2 | Deg deform | 435 | B | ia | 435.0 S | gas | |||
f2 | 3 | Deg str | 1281 | D | ? | gas | ? | gas | FR(2ν4) | |
f2 | 4 | Deg deform | 632 | B | 631.73 VS | gas | 631.2 S | gas | ||
Source: Shimanouchi, 1972
Notes
VS | Very strong |
S | Strong |
ia | Inactive |
FR | Fermi resonance with an overtone or a combination tone indicated in the parentheses. |
B | 1~3 cm-1 uncertainty |
D | 6~15 cm-1 uncertainty |
Gas Chromatography
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Porapack Q | 82. | Zenkevich and Rodin, 2004 | Program: not specified |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Chase, 1998
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Miscibility and Compatibility of Some Liquid and Solidified Gases at Low Temperature,
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Thorp, N.; Scott, R.L.,
Fluorocarbon solutions at low termperatures. I. The liquid mixtures CF4-CHF3, CF4-CH4, CF4-Kr, CH4-Kr.,
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The thermodynamic properties of carbon tetrafluoride from 12°K to its boiling point. The significance of the parameter {nu},
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Menzel and Mohry, 1933
Menzel, Walter; Mohry, Friedrich,
Die Dampfdrucke des CF4 und NF3 und der Tripelpunkt des CF4,
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Thermodynamic properties of carbon tetrafluoride from 40°K to its melting point,
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Thermodynamic studies at low temperatures VII. Phase transitions in solid BF3, CF4 and SiF4,
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Amphlett, Dacey, et al., 1971
Amphlett, J.C.; Dacey, J.R.; Pritchard, G.O.,
An investigation of the reaction 2COF2 = CO2 + CF4 and the heat of formation of carbonyl fluoride,
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Sinke, G.C.; Thompson, C.J.; Jostad, R.E.; Walker, L.C.; Swanson, A.C.; Stull, D.R.,
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Walker, 1972
Walker, L.C.,
The enthalpy of decomposition of CF3NF2(g) to CF4(g), N2(g), and F2(g),
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Enthalpy of formation of trifluoroacetonitrile,
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Standard enthalpies of formation of CF4,
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Jessup, R.S.; McCoskey, R.E.; Nelson, R.A.,
The heat of formation of tetrafluoromethane,
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Sinke, 1966
Sinke, G.C.,
The heat of reaction of nitrogen trifluoride and hexafluoroethane,
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Domalski, E.S.; Armstrong, G.T.,
The heats of combustion of polytetrafluoroethylene (teflon) and graphite in elemental fluorine,
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Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
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Energetics of gaseous ions,
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Lloyd, D.R.; Roberts, P.J.,
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Harshbarger, W.R.; Robin, M.B.; Lassettre, E.N.,
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Tichy, M.; Javahery, G.; Twiddy, N.D.; Ferguson, E.E.,
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Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Gas Chromatography, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy Pc Critical pressure S°gas,1 bar Entropy of gas at standard conditions (1 bar) Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature Vc Critical volume ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions ΔsubH Enthalpy of sublimation ΔvapH Enthalpy of vaporization ΔvapS Entropy of vaporization ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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