1,2-Hydrazinedicarboxaldehyde
- Formula: C2H4N2O2
- Molecular weight: 88.0654
- IUPAC Standard InChI: InChI=1S/C2H4N2O2/c5-1-3-4-2-6/h1-2H,(H,3,5)(H,4,6)
- IUPAC Standard InChIKey: POVXOWVFLAAVBH-UHFFFAOYSA-N
- CAS Registry Number: 628-36-4
- 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: Hydrazine, 1,2-diformyl-; s-Diformylhydrazine; Bicarbamaldehyde; Diformylhydrazine; N,N'-Diformylhydrazine; 1,2-Diformylhydrazine; s-Diformohydrazide; Diformohydrazide; Formic acid, hydrazodi-; 1,2-Diformylhydrazin; NSC 54729; hydrazodicarbaldehyde
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°solid | -79.1 ± 0.2 | kcal/mol | Ccb | Lebedeva, Katin, et al., 1980 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -245.6 ± 0.2 | kcal/mol | Ccb | Lebedeva, Katin, et al., 1980 | ALS |
Constant pressure heat capacity of solid
| Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 23.69 | 298.15 | Lebedeva, Katin, et al., 1980, 2 | T = 298 to 350 K. Cp = 0.908x10-4T3 - 0.0923T2 + 31.3779T - 3457.8187 J/mol*K, 298 to 350 K.; DH |
Phase change data
Go To: Top, Condensed phase thermochemistry 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔsubH° | 49.0 ± 0.2 | kcal/mol | V | Lebedeva, Katin, et al., 1980 | ALS |
| ΔsubH° | 24.10 ± 0.13 | kcal/mol | V | Suzuki, Onishi, et al., 1956 | ALS |
Enthalpy of sublimation
| ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 49.0201 | 356. | N/A | Lebedeva, Katin, et al., 1980, 2 | Calculated from vapor pressure.; DH |
| 49.0 ± 0.2 | 356. | ME | Lebedeva, Kalin, et al., 1980 | Based on data from 340. to 373. K.; AC |
| 24.09 | 370. to 403. | N/A | Suzuki, Onishi, et al., 1956, 2 | See also Jones, 1960.; AC |
Entropy of sublimation
| ΔsubS (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 69.6 | 356. | Lebedeva, Katin, et al., 1980, 2 | Calculated; DH |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Lebedeva, Katin, et al., 1980
Lebedeva, N.D.; Katin, Yu.A.; Ryadnenko, V.L.; Stepanov, V.B.; Kozlova, N.M.,
Thermochemical investigation of diformylhydrazine,
J. Appl. Chem. USSR, 1980, 53, 1942-1944. [all data]
Lebedeva, Katin, et al., 1980, 2
Lebedeva, N.D.; Katin, Yu.A.; Ryadnenko, V.L.; Stepanov, V.B.; Kozlova, N.M.,
Thermochemical study of diformylhydrazine,
Zhur. Prikl. Khim. (Leningrad), 1980, 53(11), 2588-2590. [all data]
Suzuki, Onishi, et al., 1956
Suzuki, K.; Onishi, S.; Koide, T.; Seki, S.,
Vapor pressures of molecular crystals. XI. Vapor pressures of crystalline urea and diformylhydrazine. Energies of hydrogen bonds in these crystals,
Bull. Chem. Soc. Jpn., 1956, 29, 127. [all data]
Lebedeva, Kalin, et al., 1980
Lebedeva, N.D.; Kalin, Y.A.; Raydnenko, V.L.; Stapanov, V.B.; Kozlova, N.M.,
Zh. Prikl. Khim. (Leningrad), 1980, 53, 2588. [all data]
Suzuki, Onishi, et al., 1956, 2
Suzuki, Keisuke; Onishi, Shun-ichi; Koide, Tsutomu; Seki, Syuzo,
Vapor Pressures of Molecular Crystals. XI. Vapor Pressures of Crystalline Urea and Diformylhydrazine. Energies of Hydrogen Bonds in these Crystals,
Bull. Chem. Soc. Jpn., 1956, 29, 1, 127-131, https://doi.org/10.1246/bcsj.29.127
. [all data]
Jones, 1960
Jones, A.H.,
Sublimation Pressure Data for Organic Compounds.,
J. Chem. Eng. Data, 1960, 5, 2, 196-200, https://doi.org/10.1021/je60006a019
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions ΔsubS Entropy of sublimation - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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