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	hartrees
Energy at 0K	-155.486217
Energy at 298.15K	-155.492437
HF Energy	-154.912447
Nuclear repulsion energy	113.307550

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3293	3092	22.02
2	A₁	3135	2944	40.71
3	A₁	1633	1533	1.74
4	A₁	1539	1445	0.05
5	A₁	1253	1177	1.71
6	A₁	1166	1095	0.17
7	A₁	1034	971	0.03
8	A₁	925	869	1.48
9	A₂	3189	2995	0.00
10	A₂	1176	1105	0.00
11	A₂	1050	986	0.00
12	A₂	907	851	0.00
13	A₂	286	269	0.00
14	B₁	3201	3006	42.59
15	B₁	1114	1046	8.68
16	B₁	888	834	18.08
17	B₁	653	613	59.74
18	B₂	3262	3063	14.13
19	B₂	3130	2940	38.30
20	B₂	1515	1422	0.35
21	B₂	1358	1276	12.24
22	B₂	1259	1183	4.63
23	B₂	934	877	13.07
24	B₂	854	802	0.78

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.674	0.812
C2	0.000	-0.674	0.812
C3	0.000	0.782	-0.698
C4	0.000	-0.782	-0.698
H5	0.000	1.419	1.596
H6	0.000	-1.419	1.596
H7	0.887	1.236	-1.140
H8	-0.887	-1.236	-1.140
H9	-0.887	1.236	-1.140
H10	0.887	-1.236	-1.140

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10
C1		1.3489	1.5130	2.0975	1.0816	2.2355	2.2163	2.8717	2.2163	2.8717
C2	1.3489		2.0975	1.5130	2.2355	1.0816	2.8717	2.2163	2.8717	2.2163
C3	1.5130	2.0975		1.5645	2.3806	3.1791	1.0903	2.2485	1.0903	2.2485
C4	2.0975	1.5130	1.5645		3.1791	2.3806	2.2485	1.0903	2.2485	1.0903
H5	1.0816	2.2355	2.3806	3.1791		2.8375	2.8827	3.9146	2.8827	3.9146
H6	2.2355	1.0816	3.1791	2.3806	2.8375		3.9146	2.8827	3.9146	2.8827
H7	2.2163	2.8717	1.0903	2.2485	2.8827	3.9146		3.0425	1.7740	2.4718
H8	2.8717	2.2163	2.2485	1.0903	3.9146	2.8827	3.0425		2.4718	1.7740
H9	2.2163	2.8717	1.0903	2.2485	2.8827	3.9146	1.7740	2.4718		3.0425
H10	2.8717	2.2163	2.2485	1.0903	3.9146	2.8827	2.4718	1.7740	3.0425

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	94.085	C1	C2	H6	133.482
C1	C3	C4	85.915	C1	C3	H7	115.773
C1	C3	H9	115.773	C2	C1	C3	94.085
C2	C1	H5	133.482	C2	C4	C3	85.915
C2	C4	H8	115.773	C2	C4	H10	115.773
C3	C1	H5	132.433	C3	C4	H8	114.587
C3	C4	H10	114.587	C4	C2	H6	132.433
C4	C3	H7	114.587	C4	C3	H9	114.587
H7	C3	H9	108.890	H8	C4	H10	108.890

All results from a given calculation for C₄H₆ (Cyclobutene)

using model chemistry: MP2=FULL/6-31+G**

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=FULL/6-31+G**

States and conformations

All results from a given calculation for C₄H₆ (Cyclobutene)