Cyclobutadiene

Formula: C₄H₄
Molecular weight: 52.0746
IUPAC Standard InChI: InChI=1S/C4H4/c1-2-4-3-1/h1-4H
IUPAC Standard InChIKey: HWEQKSVYKBUIIK-UHFFFAOYSA-N
CAS Registry Number: 1120-53-2
Chemical structure:
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Information on this page:
Other data available:
- Gas phase ion energetics data
- Vibrational and/or electronic energy levels
Data at other public NIST sites:
- Gas Phase Kinetics Database
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Gas phase thermochemistry data

Data compiled by: Glushko Thermocenter, Russian Academy of Sciences, Moscow

Constant pressure heat capacity of gas

C_p,gas (cal/mol*K)	Temperature (K)	Reference
7.949	50.	Dorofeeva O.V., 1986
8.035	100.
8.726	150.
10.24	200.
13.40	273.15
14.57 ± 0.60	298.15
14.66	300.
19.14	400.
22.86	500.
25.820	600.
28.200	700.
30.155	800.
31.793	900.
33.181	1000.
34.367	1100.
35.385	1200.
36.264	1300.
37.022	1400.
37.679	1500.

References

Go To: Top, Gas phase thermochemistry data, Notes

Dorofeeva O.V., 1986
Dorofeeva O.V., Thermodynamic properties of twenty-one monocyclic hydrocarbons, J. Phys. Chem. Ref. Data, 1986, 15, 437-464. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, References

Symbols used in this document:

C_p,gas Constant pressure heat capacity of gas
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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