2H-1-Benzopyran-2-one, 7-(diethylamino)-4-methyl-
- Formula: C14H17NO2
- Molecular weight: 231.2903
- IUPAC Standard InChIKey: AFYCEAFSNDLKSX-UHFFFAOYSA-N
- CAS Registry Number: 91-44-1
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Coumarin, 7-(diethylamino)-4-methyl-; Coumarin 1; 4-Methyl-7-(diethylamino)coumarin; 7-(Diethylamino)-4-methylcoumarin; 7-(Diethylamino)-4-methyl-2H-1-benzopyran-2-one; 7D4MC; Aclarat 8678; Blancophor AW; Blancophor FFG; C 47; Calcofluor White RW; Calcofluor White SD; Coumarin 460; Coumarin 47; Hakkol P; MDAC; NSC 61830; Uvitex WGS; 7-(diethylamino)-4-methyl-2-benzopyrone
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Phase change data
Go To: Top, Gas phase ion energetics 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, Chris Muzny director
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 344.39 | K | N/A | Witschonke, 1954 | Uncertainty assigned by TRC = 0.3 K; TRC |
Tfus | 344.85 | K | N/A | Witschonke, 1954 | Uncertainty assigned by TRC = 0.2 K; TRC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
4.2744 | 343.8 | Zhang, Huang, et al., 1989 | DH |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
11.06 | 343.8 | Zhang, Huang, et al., 1989 | DH |
Gas phase ion energetics data
Go To: Top, 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 by: Sharon G. Lias and Joel F. Liebman
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
7.38 | PE | Redchenko, Safronov, et al., 1992 | Vertical value |
Mass spectrum (electron ionization)
Go To: Top, Phase change data, Gas phase ion energetics 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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Additional Data
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Due to licensing restrictions, this spectrum cannot be downloaded.
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-NW-4467 |
NIST MS number | 232814 |
References
Go To: Top, 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.
Witschonke, 1954
Witschonke, C.R.,
Freezing point and purity data for some organic compounds,
Anal. Chem., 1954, 26, 562-4. [all data]
Zhang, Huang, et al., 1989
Zhang, X.; Huang, W.; Tan, F.; Xu, G.; Wu, Z.,
Study on phase transition thermodynamics of 4-methyl-coumarin derivative,
Chin. Sci. Bull., 1989, 34(21), 1844-1845. [all data]
Redchenko, Safronov, et al., 1992
Redchenko, V.V.; Safronov, A.I.; Kirpichenok, M.A.; Grandberg, I.I.; Traven', V.F.,
Electronic structure of π-systems. XV. Photoelectron spectra of 7-aminocoumarin derivatives,
J. Gen. Chem. USSR, 1992, 62, 2313. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), References
- Symbols used in this document:
Tfus Fusion (melting) point ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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