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	hartrees
Energy at 0K	-155.464973
Energy at 298.15K	-155.471174
HF Energy	-154.925493
Nuclear repulsion energy	112.957049

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3235	3074	23.50
2	A₁	3091	2938	39.86
3	A₁	1608	1529	0.25
4	A₁	1528	1452	0.52
5	A₁	1238	1177	3.15
6	A₁	1153	1095	0.24
7	A₁	1022	971	0.02
8	A₁	920	875	1.74
9	A₂	3141	2985	0.00
10	A₂	1187	1128	0.00
11	A₂	1045	993	0.00
12	A₂	885	841	0.00
13	A₂	288	274	0.00
14	B₁	3154	2997	49.18
15	B₁	1118	1062	4.94
16	B₁	883	840	16.14
17	B₁	645	613	55.97
18	B₂	3204	3045	15.68
19	B₂	3087	2933	36.52
20	B₂	1505	1430	1.14
21	B₂	1331	1265	14.61
22	B₂	1243	1181	4.34
23	B₂	924	878	13.92
24	B₂	850	807	0.67

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.675	0.814
C2	0.000	-0.675	0.814
C3	0.000	0.784	-0.700
C4	0.000	-0.784	-0.700
H5	0.000	1.423	1.602
H6	0.000	-1.423	1.602
H7	0.890	1.242	-1.144
H8	-0.890	-1.242	-1.144
H9	-0.890	1.242	-1.144
H10	0.890	-1.242	-1.144

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10
C1		1.3501	1.5183	2.1032	1.0870	2.2417	2.2243	2.8811	2.2243	2.8811
C2	1.3501		2.1032	1.5183	2.2417	1.0870	2.8811	2.2243	2.8811	2.2243
C3	1.5183	2.1032		1.5689	2.3896	3.1901	1.0946	2.2572	1.0946	2.2572
C4	2.1032	1.5183	1.5689		3.1901	2.3896	2.2572	1.0946	2.2572	1.0946
H5	1.0870	2.2417	2.3896	3.1901		2.8470	2.8927	3.9292	2.8927	3.9292
H6	2.2417	1.0870	3.1901	2.3896	2.8470		3.9292	2.8927	3.9292	2.8927
H7	2.2243	2.8811	1.0946	2.2572	2.8927	3.9292		3.0555	1.7798	2.4836
H8	2.8811	2.2243	2.2572	1.0946	3.9292	2.8927	3.0555		2.4836	1.7798
H9	2.2243	2.8811	1.0946	2.2572	2.8927	3.9292	1.7798	2.4836		3.0555
H10	2.8811	2.2243	2.2572	1.0946	3.9292	2.8927	2.4836	1.7798	3.0555

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	94.133	C1	C2	H6	133.517
C1	C3	C4	85.867	C1	C3	H7	115.757
C1	C3	H9	115.757	C2	C1	C3	94.133
C2	C1	H5	133.517	C2	C4	C3	85.867
C2	C4	H8	115.757	C2	C4	H10	115.757
C3	C1	H5	132.349	C3	C4	H8	114.697
C3	C4	H10	114.697	C4	C2	H6	132.349
C4	C3	H7	114.697	C4	C3	H9	114.697
H7	C3	H9	108.783	H8	C4	H10	108.783

All results from a given calculation for C₄H₆ (Cyclobutene)

using model chemistry: MP2/6-311G*

States and conformations

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for C4H6 (Cyclobutene)

using model chemistry: MP2/6-311G*

States and conformations

All results from a given calculation for C₄H₆ (Cyclobutene)