Cyclobutane

Formula: C₄H₈
Molecular weight: 56.1063
IUPAC Standard InChI: InChI=1S/C4H8/c1-2-4-3-1/h1-4H2
IUPAC Standard InChIKey: PMPVIKIVABFJJI-UHFFFAOYSA-N
CAS Registry Number: 287-23-0
Chemical structure:
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Isotopologues:
- Cyclobutane-d8
Other names: Tetramethylene; UN 2601
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- Microwave spectra (on physics lab web site)
- Gas Phase Kinetics Database
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Gas phase thermochemistry data

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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	Comment
8.162	50.	Dorofeeva O.V., 1986	Discrepancies between selected values and those calculated earlier [ Rathjens G.W., 1953] increase as the temperature increases and amount to 5.4 and 3.1 J/mol*K for S(1500 K) and Cp(1500 K), respectively.
9.128	100.
10.11	150.
11.67	200.
15.35	273.15
16.86 ± 0.36	298.15
16.98	300.
23.34	400.
29.166	500.
34.092	600.
38.222	700.
41.711	800.
44.692	900.
47.244	1000.
49.438	1100.
51.329	1200.
52.961	1300.
54.374	1400.
55.598	1500.

Gas Chromatography

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Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Kovats' RI, non-polar column, isothermal

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Column type	Active phase	Temperature (C)	I	Reference	Comment
Packed	Squalane	27.	462.	Hively and Hinton, 1968	He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm
Packed	Squalane	49.	464.	Hively and Hinton, 1968	He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm
Packed	Squalane	67.	465.	Hively and Hinton, 1968	He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm
Packed	Squalane	86.	467.	Hively and Hinton, 1968	He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm

References

Go To: Top, Gas phase thermochemistry data, Gas Chromatography, 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]

Rathjens G.W., 1953
Rathjens G.W., Jr., Infrared absorption spectra, structure and thermodynamic properties of cyclobutane, J. Am. Chem. Soc., 1953, 75, 5634-5642. [all data]

Hively and Hinton, 1968
Hively, R.A.; Hinton, R.E., Variation of the retention index with temperature on squalane substrates, J. Gas Chromatogr., 1968, 6, 4, 203-217, https://doi.org/10.1093/chromsci/6.4.203 . [all data]

Notes

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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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