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	hartrees
Energy at 0K	-155.441615
Energy at 298.15K	-155.447880
HF Energy	-154.898689
Nuclear repulsion energy	113.077138

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3275	3074	20.79
2	A₁	3116	2924	37.75
3	A₁	1688	1584	0.43
4	A₁	1559	1463	0.01
5	A₁	1275	1197	1.30
6	A₁	1174	1102	0.05
7	A₁	1039	976	0.00
8	A₁	933	876	1.30
9	A₂	3155	2962	0.00
10	A₂	1210	1135	0.00
11	A₂	1073	1007	0.00
12	A₂	914	858	0.00
13	A₂	309	290	0.00
14	B₁	3169	2974	52.70
15	B₁	1134	1064	4.78
16	B₁	899	844	12.73
17	B₁	662	621	48.08
18	B₂	3244	3045	13.24
19	B₂	3110	2920	36.90
20	B₂	1536	1442	0.10
21	B₂	1369	1285	11.91
22	B₂	1276	1197	2.75
23	B₂	936	879	11.43
24	B₂	875	822	1.16

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.671	0.815
C2	0.000	-0.671	0.815
C3	0.000	0.784	-0.700
C4	0.000	-0.784	-0.700
H5	0.000	1.421	1.600
H6	0.000	-1.421	1.600
H7	0.890	1.243	-1.144
H8	-0.890	-1.243	-1.144
H9	-0.890	1.243	-1.144
H10	0.890	-1.243	-1.144

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10
C1		1.3417	1.5189	2.1002	1.0859	2.2343	2.2265	2.8797	2.2265	2.8797
C2	1.3417		2.1002	1.5189	2.2343	1.0859	2.8797	2.2265	2.8797	2.2265
C3	1.5189	2.1002		1.5679	2.3864	3.1861	1.0953	2.2578	1.0953	2.2578
C4	2.1002	1.5189	1.5679		3.1861	2.3864	2.2578	1.0953	2.2578	1.0953
H5	1.0859	2.2343	2.3864	3.1861		2.8420	2.8904	3.9268	2.8904	3.9268
H6	2.2343	1.0859	3.1861	2.3864	2.8420		3.9268	2.8904	3.9268	2.8904
H7	2.2265	2.8797	1.0953	2.2578	2.8904	3.9268		3.0572	1.7792	2.4861
H8	2.8797	2.2265	2.2578	1.0953	3.9268	2.8904	3.0572		2.4861	1.7792
H9	2.2265	2.8797	1.0953	2.2578	2.8904	3.9268	1.7792	2.4861		3.0572
H10	2.8797	2.2265	2.2578	1.0953	3.9268	2.8904	2.4861	1.7792	3.0572

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	94.270	C1	C2	H6	133.696
C1	C3	C4	85.730	C1	C3	H7	115.842
C1	C3	H9	115.842	C2	C1	C3	94.270
C2	C1	H5	133.696	C2	C4	C3	85.730
C2	C4	H8	115.842	C2	C4	H10	115.842
C3	C1	H5	132.034	C3	C4	H8	114.780
C3	C4	H10	114.780	C4	C2	H6	132.034
C4	C3	H7	114.780	C4	C3	H9	114.780
H7	C3	H9	108.620	H8	C4	H10	108.620

All results from a given calculation for C₄H₆ (Cyclobutene)

using model chemistry: MP3/6-31G*

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: MP3/6-31G*

States and conformations

All results from a given calculation for C₄H₆ (Cyclobutene)