Furazan, dimethyl-
- Formula: C4H6N2O
- Molecular weight: 98.1032
- IUPAC Standard InChIKey: JKJSZGJVBAWEFB-UHFFFAOYSA-N
- CAS Registry Number: 4975-21-7
- 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: Furazan, 3,4-dimethyl-; 3,4-Dimethyl-1,2,5-oxadiazole; 3,4-Dimethylfurazan; Dimethylfurazan
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Gas 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 |
---|---|---|---|---|---|
ΔfH°gas | 25.6 ± 1.1 | kcal/mol | Ccb | Matyushin, Pepekin, et al., 1971 |
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 |
---|---|---|---|---|---|
ΔfH°liquid | 13.4 ± 0.9 | kcal/mol | Ccb | Matyushin, Pepekin, et al., 1971 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -594.6 ± 0.9 | kcal/mol | Ccb | Matyushin, Pepekin, et al., 1971 |
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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔvapH° | 12.2 ± 0.2 | kcal/mol | V | Matyushin, Pepekin, et al., 1971 | ALS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
12.2 | 368. | A | Stephenson and Malanowski, 1987 | Based on data from 353. to 427. K. See also Matyushin, Pepekin, et al., 1971.; AC |
IR Spectrum
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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: Coblentz Society, Inc.
Condensed Phase Spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.
Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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Owner | COBLENTZ SOCIETY Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | STANDARD OIL OF OHIO |
Source reference | COBLENTZ NO. 10289 |
Date | 1974/11/08 |
Name(s) | 3,4-dimethyl-1,2,5-oxadiazole |
State | LIQUID (NEAT) |
Instrument | PERKIN-ELMER 180 (GRATING) |
Instrument parameters | GRATING CHANGES AT 2000, 1000, 500, 250 CM-1 |
Path length | CAPILLARY, KBr CRYSTALS 99% PURE |
Resolution | 4 |
Sampling procedure | TRANSMISSION |
Data processing | DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS) |
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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Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
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 | A.E.FONTAINE DYESTUFFS DIV., I.C.I., MANCHESTER |
NIST MS number | 997 |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Matyushin, Pepekin, et al., 1971
Matyushin, Yu.N.; Pepekin, V.I.; Golova, S.P.; Godovikova, T.I.; Khmelnitskii, L.I.,
Enthalpy of formation of dimethylfuroxan and dimethylfurazan,
Bull. Acad. Sci. USSR, Div. Chem. Sci., 1971, 162-164. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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