6H-Dibenzo[b,d]-pyran


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
Δcliquid-6481. ± 4.kJ/molCcbCass, Fletcher, et al., 1958Corresponding Δfliquid = -63.6 kJ/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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δvap88.7kJ/molVCass, Fletcher, et al., 1958 

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: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to C13H10O+ (ion structure unspecified)

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C13H9O+11.4 ± 0.1HPEBouchoux and Dagaut, 1981 

Mass spectrum (electron ionization)

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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: 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 F.Guidugli ET AL, Org.Mass Spectrom.,27,1299(1992)
NIST MS number 280928

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References

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

Cass, Fletcher, et al., 1958
Cass, R.C.; Fletcher, S.E.; Mortimer, C.T.; Springall, H.D.; White, T.R., Heats of combustion and molecular structure. Part V. The mean bond energy term for the C-O bond in ethers, and the structures of some cyclic ethers, J. Chem. Soc., 1958, 1406-1410. [all data]

Bouchoux and Dagaut, 1981
Bouchoux, G.; Dagaut, J., Mechanisms of formation of [M-HCO]+ and [M-C6H5CO]+ ions from isomers of 1,4-benzodioxin derivatives, Org. Mass Spectrom., 1981, 16, 246. [all data]


Notes

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