Benzene, 1,3,5-trimethyl-2-nitro-

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Gas phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfgas-6.41 ± 0.53kcal/molCcbAcree, Tucker, et al., 1993 

Condensed phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfsolid-25.19 ± 0.48kcal/molCcbAcree, Tucker, et al., 1993crystal phase
Quantity Value Units Method Reference Comment
Δcsolid-1197.0 ± 0.38kcal/molCcbAcree, Tucker, et al., 1993crystal phase

Phase change data

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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
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil528.2KN/AWeast and Grasselli, 1989BS
Quantity Value Units Method Reference Comment
Tfus317.KN/AWhite, Biggs, et al., 1940Uncertainty assigned by TRC = 1.5 K; TRC
Quantity Value Units Method Reference Comment
Δsub18.8 ± 0.24kcal/molCAcree, Tucker, et al., 1993crystal phase; ALS
Δsub18.8 ± 0.24kcal/molCAcree, Tucker, et al., 1993See also Acree, Tucker, et al., 1993.; AC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Gas phase ion energetics data

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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

Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
B - John E. Bartmess

Quantity Value Units Method Reference Comment
Proton affinity (review)196.9kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity189.6kcal/molN/AHunter and Lias, 1998HL

Electron affinity determinations

EA (eV) Method Reference Comment
0.70 ± 0.10IMREMishima, Kang, et al., 1993ΔGea(343 K) = -15.5 kcal/mol; ΔSea (est) = -2.0 eu.; B
0.71 ± 0.10TDEqChowdhury, Heinis, et al., 1986ΔGea= -16.1 kcal/mol; ΔSea estimated = -1.1 eu.; B
0.707 ± 0.087IMREHuh, Kang, et al., 1999ΔG(EA) 343K; anchored to ΔG value. Including anchor ΔS, EA is ca. 0.4 kcal/mol more bound.; B
0.776 ± 0.048IMREFukuda and McIver, 1985ΔGea(355 K) = -17.5 kcal/mol; ΔSea =-1.1, est. from data in Chowdhury, Heinis, et al., 1986; B

Ionization energy determinations

IE (eV) Method Reference Comment
8.8PEKobayashi and Nagakura, 1974LLK
9.01PEKobayashi and Nagakura, 1974Vertical value; LLK

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Acree, Tucker, et al., 1993
Acree, W.E., Jr.; Tucker, S.A.; Pilcher, G.; Chowdhary, A.; Ribeiro da Silva, M.D.M.; Monte, M.J.S., Enthalpies of combustion of 2,2',4,4',6,6'-hexamethylazobenzene-N,N-dioxide, 2,2',6,6'-tetramethylazobenzene-N,N-dioxide, 2,4,6-trimethylnitrobenzene, and 2,6-dimethyl-nitrobenzene: the dissociation enthalpies of the N=N and N-O bonds, J. Chem. Thermodyn., 1993, 25, 1253-1261. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

White, Biggs, et al., 1940
White, A.H.; Biggs, B.S.; Morgan, S.O., Dielectric Evidence for Molecular Rotation in the Crystals of Certain Benzene Derivatives, J. Am. Chem. Soc., 1940, 62, 16-25. [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Mishima, Kang, et al., 1993
Mishima, M.; Kang, C.H.; Huh, C.; Fujio, M.; Tsuno, Y., Substituent Effect on Electron Affinity of 2,6-Dimethylnitrobenzene, Chem. Lett., 1993, 22, 5, 889, https://doi.org/10.1246/cl.1993.889 . [all data]

Chowdhury, Heinis, et al., 1986
Chowdhury, S.; Heinis, T.; Grimsrud, E.P.; Kebarle, P., Entropy Changes and Electron Affinities from Gas-Phase Electron Transfer Equilibria: A- + B = A + B-, J. Phys. Chem., 1986, 90, 12, 2747, https://doi.org/10.1021/j100403a037 . [all data]

Huh, Kang, et al., 1999
Huh, C.; Kang, C.H.; Lee, H.W.; Nakamura, H.; Mishima, M.; Tsuno, Y.; Yamataka, H., Thermodynamic stabilities and resonance demand of aromatic radical anions in the gas phase, Bull. Chem. Soc. Japan, 1999, 72, 5, 1083-1091, https://doi.org/10.1246/bcsj.72.1083 . [all data]

Fukuda and McIver, 1985
Fukuda, E.K.; McIver, R.T., Jr., Relative electron affinities of substituted benzophenones, nitrobenzenes, and quinones. [Anchored to EA(SO2) from 74CEL/BEN], J. Am. Chem. Soc., 1985, 107, 2291. [all data]

Kobayashi and Nagakura, 1974
Kobayashi, T.; Nagakura, S., Photoelectron spectra of substituted benzenes, Bull. Chem. Soc. Jpn., 1974, 47, 2563. [all data]


Notes

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