Quinazoline
- Formula: C8H6N2
- Molecular weight: 130.1466
- IUPAC Standard InChIKey: JWVCLYRUEFBMGU-UHFFFAOYSA-N
- CAS Registry Number: 253-82-7
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Phenmiazine; 1,3-Benzodiazine; 1,3-Diazanaphthalene; 4.5-Benzopyrimidine; Benzo(e)pyrimidine
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Condensed phase thermochemistry data
Go To: Top, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | 39.79 ± 0.55 | kcal/mol | Ccb | Ribeiro da Silva and Matos, 1995 | |
ΔfH°solid | 43.1 ± 2.1 | kcal/mol | Ccb | Hussein and Akasheh, 1985 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -997.13 ± 0.50 | kcal/mol | Ccb | Ribeiro da Silva and Matos, 1995 | |
ΔcH°solid | -1000.4 ± 1.9 | kcal/mol | Ccb | Hussein and Akasheh, 1985 |
IR Spectrum
Go To: Top, Condensed phase thermochemistry data, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, 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
Gas Phase Spectrum
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Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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Owner | SRD/NIST Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | EPA-IR VAPOR PHASE LIBRARY |
State | gas |
Mass spectrum (electron ionization)
Go To: Top, Condensed phase thermochemistry data, IR Spectrum, UV/Visible spectrum, Gas Chromatography, 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 | NIST Mass Spectrometry Data Center, 1994 |
NIST MS number | 134262 |
UV/Visible spectrum
Go To: Top, Condensed phase thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Spectrum
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Additional Data
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Source | Vanderhaegte and Claesen, 1957 |
---|---|
Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
Source reference | RAS UV No. 12644 |
Instrument | n.i.g. |
Melting point | 48 |
Boiling point | 241 |
Gas Chromatography
Go To: Top, Condensed phase thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, 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
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | BPX-5 | 1239. | Ames, Defaye, et al., 1997 | 50. m/0.325 mm/0.5 μm, He, 50. C @ 2. min, 4. K/min, 250. C @ 10. min |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Ultra-1 | 1201. | Okumura, 1991 | 25. m/0.32 mm/0.25 μm, He, 3. K/min; Tstart: 80. C; Tend: 260. C |
References
Go To: Top, Condensed phase thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Ribeiro da Silva and Matos, 1995
Ribeiro da Silva, M.A.V.; Matos, M.A.R.,
Thermochemical and theoretical studies of some benzodiazines,
J. Chem. Soc. Faraday Trans., 1995, 91, 1907-1910. [all data]
Hussein and Akasheh, 1985
Hussein, A.; Akasheh, T.S.,
Heat of combustion of heterocyclic compounds. Part II.,
Dirasat - Univ. Jordan, 1985, 12, 65-72. [all data]
Vanderhaegte and Claesen, 1957
Vanderhaegte, H.; Claesen, M.,
Bull. soc. chim. Belges, 1957, 66, 276. [all data]
Ames, Defaye, et al., 1997
Ames, J.M.; Defaye, A.B.; Bates, L.,
The effect of pH on the volatiles formed in an extruded starch-glucose-lysine model system,
Food Chem., 1997, 58, 4, 323-327, https://doi.org/10.1016/S0308-8146(96)00171-9
. [all data]
Okumura, 1991
Okumura, T.,
retention indices of environmental chemicals on methyl silicone capillary column,
Journal of Environmental Chemistry (Japan), 1991, 1, 2, 333-358, https://doi.org/10.5985/jec.1.333
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, References
- Symbols used in this document:
ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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