Diethylzinc
- Formula: C4H10Zn
- Molecular weight: 123.50
- IUPAC Standard InChIKey: HQWPLXHWEZZGKY-UHFFFAOYSA-N
- CAS Registry Number: 557-20-0
- Chemical structure:
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Gas phase thermochemistry data
Go To: Top, 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 by: José A. Martinho Simões
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 14. ± 1. | kcal/mol | AVG | N/A | Average of 6 values; Individual data points |
Phase change data
Go To: Top, Gas phase 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
MS - José A. Martinho Simões
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
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 |
---|---|---|---|---|---|
Ttriple | 236.98 | K | N/A | Rabinovich, Nistratov, et al., 1988 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC |
Ttriple | 239.80 | K | N/A | Gibin, Grishnova, et al., 1987 | Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 9.27 ± 0.1 | kcal/mol | CC-SB | Sokolovskii and Baev, 1984 | Another value for the enthalpy of vaporization has been reported: 9.61 ± 0.50 kcal/mol Bamford, Levi, et al., 1946.; MS |
ΔvapH° | 9.06 | kcal/mol | N/A | House, 1983 | AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
9.54 | 265. | Stull, 1947 | Based on data from 250. to 391. K.; AC |
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 |
---|---|---|---|---|---|
250.8 to 391. | 4.40874 | 1571.638 | -34.978 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
4.3141 | 239.80 | Gibin, Grishnova, et al., 1987 | DH |
4.314 | 239.8 | Gibin, Grishnova, et al., 1987, 2 | Based on data from 18. to 273. K.; AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
18.00 | 239.80 | Gibin, Grishnova, et al., 1987 | DH |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
0.445 | 148.4 | Domalski and Hearing, 1996 | CAL |
16.78 | 237.0 |
Enthalpy of phase transition
ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.06582 | 148.4 | crystaline, II | crystaline, I | Rabinovich, Nistratov, et al., 1988, 2 | DH |
3.9756 | 236.98 | crystaline, I | liquid | Rabinovich, Nistratov, et al., 1988, 2 | DH |
Entropy of phase transition
ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.507 | 148.4 | crystaline, II | crystaline, I | Rabinovich, Nistratov, et al., 1988, 2 | DH |
16.78 | 236.98 | crystaline, I | liquid | Rabinovich, Nistratov, et al., 1988, 2 | DH |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Rabinovich, Nistratov, et al., 1988
Rabinovich, I.B.; Nistratov, V.P.; Fedoseev, V.B.; Sheiman, M.S.; Kamelova, G.P.; Karataev, E.N.,
Low-temperature specific heat and thermodynamic functions of diethylzine,
Zh. Fiz. Khim., 1988, 62, 1349. [all data]
Gibin, Grishnova, et al., 1987
Gibin, A.M.; Grishnova, N.D.; Gusev, A.V.; Moiseev, A.N.; Remeshkova, I.I.; Salganskii, Yu.M.,
Study of the heat capacity of high-purity diethyl zinc at 18-273 K,
Vysokochist. Veshchestva, 1987, (6), 28-32. [all data]
Sokolovskii and Baev, 1984
Sokolovskii, A.E.; Baev, A.K.,
Zh. Obshch. Khim., 1984, 54, 103. [all data]
Bamford, Levi, et al., 1946
Bamford, C.H.; Levi, D.L.; Newitt, D.M.,
J. Chem. Soc., 1946, 468.. [all data]
House, 1983
House, J.E.,
Cohesion energies and solubility parameters for triethylboron and diethylzinc,
Thermochimica Acta, 1983, 71, 1-2, 215-218, https://doi.org/10.1016/0040-6031(83)80370-0
. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Gibin, Grishnova, et al., 1987, 2
Gibin, A.M.; Grishnova, N.D.; Gusev, A.V.; Moiseev, A.N.; Remeshkova, I.I.; Salganskii, Y.M.,
Vysokochist. Veshchestva, 1987, 28. [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,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Rabinovich, Nistratov, et al., 1988, 2
Rabinovich, I.B.; Nistratov, V.P.; Fedoseev, V.B.; Sheiman, M.S.; Kamelova, G.P.; Karataev, E.N.; Feshchenko, I.A.,
Low-temperature specific heat and thermodynamic functions of diethylzinc,
Zhur.Fiz. Khim., 1988, 62, 1349-1352. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Ttriple Triple point temperature 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 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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