9H-Fluorene, 9-methyl-

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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
Δfgas35.38 ± 0.25kcal/molCcrRakus, Verevkin, et al., 1994 

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
Δfsolid15.60 ± 0.24kcal/molCcrRakus, Verevkin, et al., 1994crystal phase
Quantity Value Units Method Reference Comment
Δcsolid-1742.20kcal/molCcrRakus, Verevkin, et al., 1994crystal phase; Corresponding Δfsolid = 15.59 kcal/mol (simple calculation by NIST; no Washburn corrections)

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
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.

Quantity Value Units Method Reference Comment
Δvap16.9 ± 0.07kcal/molGSVerevkin, 2004Based on data from 320. to 353. K.; AC
Δvap17.0 ± 0.05kcal/molGSVerevkin, 2004Based on data from 318. to 358. K.; AC
Δvap15.9kcal/molBRakus, Verevkin, et al., 1994Based on data from 318. to 358. K.; AC
Quantity Value Units Method Reference Comment
Δsub20.0 ± 0.1kcal/molGSVerevkin, 2004Based on data from 285. to 317. K.; AC
Δsub19.78kcal/molVRakus, Verevkin, et al., 1994crystal phase; ALS
Δsub19.8kcal/molN/ARakus, Verevkin, et al., 1994DRB
Δsub19.8 ± 0.07kcal/molN/ARakus, Verevkin, et al., 1994AC

Reduced pressure boiling point

Tboil (K) Pressure (atm) Reference Comment
428.20.020Weast and Grasselli, 1989BS

Enthalpy of sublimation

ΔsubH (kcal/mol) Temperature (K) Method Reference Comment
19.8 ± 0.07338.BRakus, Verevkin, et al., 1994Based on data from 318. to 358. K.; AC

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Method Reference Comment
3.901319.2DSCRakus, Verevkin, et al., 1994AC

Reaction 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: John E. Bartmess

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

C14H11- + Hydrogen cation = 9H-Fluorene, 9-methyl-

By formula: C14H11- + H+ = C14H12

Quantity Value Units Method Reference Comment
Δr350.8 ± 2.1kcal/molG+TSTaft, 1987gas phase; value altered from reference due to change in acidity scale
Quantity Value Units Method Reference Comment
Δr343.5 ± 2.0kcal/molIMRETaft, 1987gas phase; value altered from reference due to change in acidity scale

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 compiled by: John E. Bartmess

View reactions leading to C14H12+ (ion structure unspecified)

De-protonation reactions

C14H11- + Hydrogen cation = 9H-Fluorene, 9-methyl-

By formula: C14H11- + H+ = C14H12

Quantity Value Units Method Reference Comment
Δr350.8 ± 2.1kcal/molG+TSTaft, 1987gas phase; value altered from reference due to change in acidity scale
Quantity Value Units Method Reference Comment
Δr343.5 ± 2.0kcal/molIMRETaft, 1987gas phase; value altered from reference due to change in acidity scale

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change 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.

Rakus, Verevkin, et al., 1994
Rakus, K.; Verevkin, S.P.; Schatzer, J.; Beckhaus, H.-D.; Ruchardt, C., Thermochemistry and thermal decomposition of 9,9'-bifluorenyl and 9,9'-dimethyl-9,9'-bifluorenyl - the stabilization energy of 9-fluorenyl radicals, Chem. Ber., 1994, 127, 1095-1103. [all data]

Verevkin, 2004
Verevkin, Sergey P., Vapor pressure measurements on fluorene and methyl-fluorenes, Fluid Phase Equilibria, 2004, 225, 145-152, https://doi.org/10.1016/j.fluid.2004.08.037 . [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]

Taft, 1987
Taft, R.W., The Nature and Analysis of Substitutent Electronic Effects, Personal communication. See also Prog. Phys. Org. Chem., 1987, 16, 1. [all data]


Notes

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