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	hartrees
Energy at 0K	-155.518118
Energy at 298.15K	-155.524295
HF Energy	-154.947227
Nuclear repulsion energy	113.299480

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3258	3089	20.39
2	A₁	3104	2942	39.45
3	A₁	1615	1531	1.24
4	A₁	1514	1435	0.12
5	A₁	1236	1172	1.49
6	A₁	1151	1091	0.12
7	A₁	1021	968	0.01
8	A₁	908	861	1.31
9	A₂	3154	2990	0.00
10	A₂	1149	1089	0.00
11	A₂	1031	977	0.00
12	A₂	880	834	0.00
13	A₂	267	253	0.00
14	B₁	3168	3003	42.67
15	B₁	1106	1049	8.38
16	B₁	879	833	18.89
17	B₁	659	625	49.88
18	B₂	3227	3059	12.24
19	B₂	3099	2938	36.78
20	B₂	1490	1412	0.48
21	B₂	1337	1268	11.79
22	B₂	1230	1166	5.23
23	B₂	916	868	13.43
24	B₂	846	802	0.63

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.672	0.812
C2	0.000	-0.672	0.812
C3	0.000	0.784	-0.698
C4	0.000	-0.784	-0.698
H5	0.000	1.417	1.597
H6	0.000	-1.417	1.597
H7	0.890	1.235	-1.140
H8	-0.890	-1.235	-1.140
H9	-0.890	1.235	-1.140
H10	0.890	-1.235	-1.140

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10
C1		1.3441	1.5144	2.0976	1.0825	2.2320	2.2174	2.8700	2.2174	2.8700
C2	1.3441		2.0976	1.5144	2.2320	1.0825	2.8700	2.2174	2.8700	2.2174
C3	1.5144	2.0976		1.5673	2.3812	3.1800	1.0910	2.2498	1.0910	2.2498
C4	2.0976	1.5144	1.5673		3.1800	2.3812	2.2498	1.0910	2.2498	1.0910
H5	1.0825	2.2320	2.3812	3.1800		2.8346	2.8833	3.9135	2.8833	3.9135
H6	2.2320	1.0825	3.1800	2.3812	2.8346		3.9135	2.8833	3.9135	2.8833
H7	2.2174	2.8700	1.0910	2.2498	2.8833	3.9135		3.0443	1.7796	2.4701
H8	2.8700	2.2174	2.2498	1.0910	3.9135	2.8833	3.0443		2.4701	1.7796
H9	2.2174	2.8700	1.0910	2.2498	2.8833	3.9135	1.7796	2.4701		3.0443
H10	2.8700	2.2174	2.2498	1.0910	3.9135	2.8833	2.4701	1.7796	3.0443

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	94.226	C1	C2	H6	133.510
C1	C3	C4	85.774	C1	C3	H7	115.713
C1	C3	H9	115.713	C2	C1	C3	94.226
C2	C1	H5	133.510	C2	C4	C3	85.774
C2	C4	H8	115.713	C2	C4	H10	115.713
C3	C1	H5	132.264	C3	C4	H8	114.441
C3	C4	H10	114.441	C4	C2	H6	132.264
C4	C3	H7	114.441	C4	C3	H9	114.441
H7	C3	H9	109.293	H8	C4	H10	109.293

All results from a given calculation for C₄H₆ (Cyclobutene)

using model chemistry: MP2/TZVP

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/TZVP

States and conformations

All results from a given calculation for C₄H₆ (Cyclobutene)