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	hartrees
Energy at 0K	-157.034121
Energy at 298.15K
HF Energy	-156.840851
Nuclear repulsion energy	127.229448

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3144	3144	0.00
2	A₁	3107	3107	0.00
3	A₁	1560	1560	0.00
4	A₁	1201	1201	0.00
5	A₁	1039	1039	0.00
6	A₁	220	220	0.00
7	A₂	1278	1278	0.00
8	A₂	978	978	0.00
9	B₁	1288	1288	0.00
10	B₁	1192	1192	0.00
11	B₁	961	961	0.00
12	B₂	3173	3173	98.25
13	B₂	3099	3099	10.87
14	B₂	1527	1527	3.50
15	B₂	914	914	0.04
16	B₂	639	639	2.57
17	E	3157	3157	20.06
17	E	3157	3157	20.06
18	E	3100	3100	73.92
18	E	3100	3100	73.92
19	E	1520	1520	0.04
19	E	1520	1520	0.04
20	E	1320	1320	0.45
20	E	1320	1320	0.45
21	E	1275	1275	0.20
21	E	1275	1275	0.20
22	E	934	934	2.16
22	E	934	934	2.16
23	E	769	769	0.56
23	E	769	769	0.56

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	1.078	0.137
C2	0.000	-1.078	0.137
C3	-1.078	0.000	-0.137
C4	1.078	0.000	-0.137
H5	0.000	1.379	1.186
H6	0.000	1.975	-0.483
H7	0.000	-1.379	1.186
H8	0.000	-1.975	-0.483
H9	-1.379	0.000	-1.186
H10	-1.975	0.000	0.483
H11	1.379	0.000	-1.186
H12	1.975	0.000	0.483

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10	H11	H12
C1		2.1554	1.5485	1.5485	1.0919	1.0909	2.6718	3.1151	2.1942	2.2765	2.1942	2.2765
C2	2.1554		1.5485	1.5485	2.6718	3.1151	1.0919	1.0909	2.1942	2.2765	2.1942	2.2765
C3	1.5485	1.5485		2.1554	2.1942	2.2765	2.1942	2.2765	1.0919	1.0909	2.6718	3.1151
C4	1.5485	1.5485	2.1554		2.1942	2.2765	2.1942	2.2765	2.6718	3.1151	1.0919	1.0909
H5	1.0919	2.6718	2.1942	2.1942		1.7727	2.7589	3.7470	3.0714	2.5095	3.0714	2.5095
H6	1.0909	3.1151	2.2765	2.2765	1.7727		3.7470	3.9502	2.5095	2.9558	2.5095	2.9558
H7	2.6718	1.0919	2.1942	2.1942	2.7589	3.7470		1.7727	3.0714	2.5095	3.0714	2.5095
H8	3.1151	1.0909	2.2765	2.2765	3.7470	3.9502	1.7727		2.5095	2.9558	2.5095	2.9558
H9	2.1942	2.1942	1.0919	2.6718	3.0714	2.5095	3.0714	2.5095		1.7727	2.7589	3.7470
H10	2.2765	2.2765	1.0909	3.1151	2.5095	2.9558	2.5095	2.9558	1.7727		3.7470	3.9502
H11	2.1942	2.1942	2.6718	1.0919	3.0714	2.5095	3.0714	2.5095	2.7589	3.7470		1.7727
H12	2.2765	2.2765	3.1151	1.0909	2.5095	2.9558	2.5095	2.9558	3.7470	3.9502	1.7727

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C3	C2	88.212	C1	C3	H9	111.229
C1	C3	H10	118.171	C1	C4	C2	88.212
C1	C4	H11	111.229	C1	C4	H12	118.171
C2	C3	H9	111.229	C2	C3	H10	118.171
C2	C4	H11	111.229	C2	C4	H12	118.171
C3	C1	C4	88.212	C3	C1	H5	111.229
C3	C1	H6	118.171	C3	C2	C4	88.212
C3	C2	H7	111.229	C3	C2	H8	118.171
C4	C1	H5	111.229	C4	C1	H6	118.171
C4	C2	H7	111.229	C4	C2	H8	118.171
H5	C1	H6	108.608	H7	C2	H8	108.608
H9	C3	H10	108.608	H11	C4	H12	108.608

All results from a given calculation for C₄H₈ (cyclobutane)

using model chemistry: B2PLYP=FULLultrafine/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 C4H8 (cyclobutane)

using model chemistry: B2PLYP=FULLultrafine/6-31G**

States and conformations

All results from a given calculation for C₄H₈ (cyclobutane)