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9,9'-Bi-9H-fluorene

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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), 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:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Deltafgas78.9 ± 1.0kcal/molReviewRoux, Temprado, et al., 2008There are insufficient literature values to properly evaluate the data and insufficient information to construct thermochemical cycles or estimate values for comparison, and one must rely solely upon reported uncertainities and the quality of the measurements. In general, the evaluated uncertainty limits are on the order of (3 to 9) kJ/mol.; DRB
Deltafgas78.89 ± 0.54kcal/molCcrRakus, Verevkin, et al., 1994ALS

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), 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:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Deltafsolid47.20 ± 0.84kcal/molReviewRoux, Temprado, et al., 2008There are insufficient literature values to properly evaluate the data and insufficient information to construct thermochemical cycles or estimate values for comparison, and one must rely solely upon reported uncertainities and the quality of the measurements. In general, the evaluated uncertainty limits are on the order of (3 to 9) kJ/mol.; DRB
Deltafsolid47.20 ± 0.46kcal/molCcrRakus, Verevkin, et al., 1994crystal phase; ALS
Quantity Value Units Method Reference Comment
Deltacsolid-3107.50 ± 0.18kcal/molCcrRakus, Verevkin, et al., 1994crystal phase; Corresponding «DELTA»fsolid = 47.337 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS

Phase change data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Mass spectrum (electron ionization), 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, Kenneth Kroenlein director
AC - William E. Acree, Jr., James S. Chickos
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Tfus518.35KN/ASchuyer, Blom, et al., 1953Uncertainty assigned by TRC = 1. K; TRC
Quantity Value Units Method Reference Comment
Deltasub31.69 ± 0.55kcal/molReviewRoux, Temprado, et al., 2008There are sufficient literature values to make a qualified recommendation where the suggested value is in good agreement with values predicted using thermochemical cycles or from reliable estimates. In general, the evaluated uncertainty limits are on the order of (2 to 4) kJ/mol.; DRB
Deltasub31.695kcal/molVRakus, Verevkin, et al., 1994crystal phase; ALS
Deltasub31.69kcal/molN/ARakus, Verevkin, et al., 1994DRB
Deltasub31.69 ± 0.26kcal/molN/ARakus, Verevkin, et al., 1994AC

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
22.9383. - 408.BRakus, Verevkin, et al., 1994AC

Enthalpy of sublimation

DeltasubH (kcal/mol) Temperature (K) Method Reference Comment
31.50 ± 0.26395.TRakus, Verevkin, et al., 1994Based on data from 383. - 408. K.; AC

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
8.82519.2Rakus, Verevkin, et al., 1994AC

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:


Mass spectrum (electron ionization)

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass 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.
Origin Japan AIST/NIMC Database- Spectrum MS-IW- 38
NIST MS number 239326

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), Notes

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

Roux, Temprado, et al., 2008
Roux, M.V.; Temprado, M.; Chickos, J.S.; Nagano, Y., Critically Evaluated Thermochemical Properties of Polycyclic Aromatic Hydrocarbons, J. Phys. Chem. Ref. Data, 2008, 37, 4, 1855-1996. [all data]

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]

Schuyer, Blom, et al., 1953
Schuyer, J.; Blom, L.; Van Krevelen, D.W., Molar refraction of condensed aromatic compounds., Trans. Faraday Soc., 1953, 49, 1391. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References