9(10H)-Acridinone

Formula: C₁₃H₉NO
Molecular weight: 195.2167
IUPAC Standard InChI: InChI=1S/C13H9NO/c15-13-9-5-1-3-7-11(9)14-12-8-4-2-6-10(12)13/h1-8H,(H,14,15)
IUPAC Standard InChIKey: FZEYVTFCMJSGMP-UHFFFAOYSA-N
CAS Registry Number: 578-95-0
Chemical structure:
This structure is also available as a 2d Mol file
Other names: 9-Acridanone; Acridanone; Acridine, 9,10-dihydro-9-oxo-; Acridone; 9(10H)-Acridone; 9-Acridone; Acridin-9-one; 9,l0-Dihydro-9-oxoacridine
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Gas phase thermochemistry data

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

Quantity	Value	Units	Method	Reference	Comment
Δ_fH°_gas	8.27 ± 0.62	kcal/mol	Ccr	Sabbah and El Watik, 1992	Published also in Calorim. Anal. Therm. 23,477 1992

Gas phase ion energetics data

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Data compiled as indicated in comments:
B - John E. Bartmess
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV)	Method	Reference	Comment
7.60 ± 0.03	PI	Potapov, Filyugina, et al., 1968	RDSH

De-protonation reactions

C₁₃H₈NO^- + = 9(10H)-Acridinone

By formula: C₁₃H₈NO^- + H⁺ = C₁₃H₉NO

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	324. ± 10.	kcal/mol	EIAE	Muftakhov, Vasil'ev, et al., 1999	gas phase; B

Gas Chromatography

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Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Normal alkane RI, non-polar column, custom temperature program

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Column type	Active phase	I	Reference	Comment
Capillary	Polydimethyl siloxane, unknown content of Ph-groups	2362.	Geldon, 1989	Program: not specified

References

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Sabbah and El Watik, 1992
Sabbah, R.; El Watik, L., Etude thermodynamique de l'acridone et de la thioxanthone, Can. J. Chem., 1992, 70, 24-28. [all data]

Potapov, Filyugina, et al., 1968
Potapov, V.K.; Filyugina, A.D.; Shigorin, D.N.; Ozerova, G.A., Photoionization of some compounds containing the carbonyl and amino groups, Dokl. Akad. Nauk SSSR, 1968, 180, 398, In original 352. [all data]

Muftakhov, Vasil'ev, et al., 1999
Muftakhov, M.V.; Vasil'ev, Y.V.; Khatymov, R.V.; Mazunov, V.A.; Takhistov, V.V.; Travkin, O.V.; Yakovleva, E.V., Thermochemistry of negatively charged ions. II. Energetics of formation of negative ions from acridanone and some of its derivatives, Rapid Commun. Mass Spectrom., 1999, 13, 10, 912-923, https://doi.org/10.1002/(SICI)1097-0231(19990530)13:10<912::AID-RCM585>3.0.CO;2-W . [all data]

Geldon, 1989
Geldon, A.L., Ground Water Hydrology of the Central Raton Basin, Colorado and New Mexico, US Geological Survey, US Government Printing Office, 1989, 104. [all data]

Notes

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Symbols used in this document:

Δ_fH°_gas Enthalpy of formation of gas at standard conditions

Δ_rH° Enthalpy of reaction at standard conditions
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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Δ_fH°_gas	Enthalpy of formation of gas at standard conditions
Δ_rH°	Enthalpy of reaction at standard conditions