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	hartrees
Energy at 0K	-155.410184
Energy at 298.15K	-155.416419
HF Energy	-154.898419
Nuclear repulsion energy	113.171300

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3267	3081	21.64
2	A₁	3116	2938	34.85
3	A₁	1644	1550	0.37
4	A₁	1554	1466	0.00
5	A₁	1261	1189	1.55
6	A₁	1171	1104	0.07
7	A₁	1041	982	0.01
8	A₁	933	880	1.22
9	A₂	3165	2984	0.00
10	A₂	1203	1134	0.00
11	A₂	1067	1006	0.00
12	A₂	903	852	0.00
13	A₂	297	280	0.00
14	B₁	3177	2996	45.93
15	B₁	1132	1068	4.25
16	B₁	901	850	11.86
17	B₁	655	618	48.64
18	B₂	3237	3052	12.97
19	B₂	3112	2934	32.95
20	B₂	1533	1446	0.12
21	B₂	1361	1283	11.96
22	B₂	1268	1196	3.49
23	B₂	941	887	10.95
24	B₂	858	809	1.32

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.674	0.812
C2	0.000	-0.674	0.812
C3	0.000	0.783	-0.697
C4	0.000	-0.783	-0.697
H5	0.000	1.423	1.599
H6	0.000	-1.423	1.599
H7	0.890	1.240	-1.143
H8	-0.890	-1.240	-1.143
H9	-0.890	1.240	-1.143
H10	0.890	-1.240	-1.143

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10
C1		1.3470	1.5135	2.0975	1.0868	2.2396	2.2219	2.8772	2.2219	2.8772
C2	1.3470		2.0975	1.5135	2.2396	1.0868	2.8772	2.2219	2.8772	2.2219
C3	1.5135	2.0975		1.5655	2.3838	3.1843	1.0953	2.2545	1.0953	2.2545
C4	2.0975	1.5135	1.5655		3.1843	2.3838	2.2545	1.0953	2.2545	1.0953
H5	1.0868	2.2396	2.3838	3.1843		2.8470	2.8886	3.9251	2.8886	3.9251
H6	2.2396	1.0868	3.1843	2.3838	2.8470		3.9251	2.8886	3.9251	2.8886
H7	2.2219	2.8772	1.0953	2.2545	2.8886	3.9251		3.0526	1.7793	2.4805
H8	2.8772	2.2219	2.2545	1.0953	3.9251	2.8886	3.0526		2.4805	1.7793
H9	2.2219	2.8772	1.0953	2.2545	2.8886	3.9251	1.7793	2.4805		3.0526
H10	2.8772	2.2219	2.2545	1.0953	3.9251	2.8886	2.4805	1.7793	3.0526

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	94.140	C1	C2	H6	133.638
C1	C3	C4	85.860	C1	C3	H7	115.868
C1	C3	H9	115.868	C2	C1	C3	94.140
C2	C1	H5	133.638	C2	C4	C3	85.860
C2	C4	H8	115.868	C2	C4	H10	115.868
C3	C1	H5	132.222	C3	C4	H8	114.687
C3	C4	H10	114.687	C4	C2	H6	132.222
C4	C3	H7	114.687	C4	C3	H9	114.687
H7	C3	H9	108.631	H8	C4	H10	108.631

All results from a given calculation for C₄H₆ (Cyclobutene)

using model chemistry: MP2/6-31G*

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: MP2/6-31G*

States and conformations

All results from a given calculation for C₄H₆ (Cyclobutene)