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	hartrees
Energy at 0K	-27.063774
Energy at 298.15K	-27.072938
HF Energy	-26.573102
Nuclear repulsion energy	71.055734

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3169	3009	0.00
2	A₁	3114	2956	0.00
3	A₁	1557	1479	0.00
4	A₁	1180	1120	0.00
5	A₁	1045	992	0.00
6	A₁	235	224	0.00
7	A₂	1241	1178	0.00
8	A₂	974	925	0.00
9	B₁	1277	1212	0.00
10	B₁	1183	1123	0.00
11	B₁	970	921	0.00
12	B₂	3201	3039	129.15
13	B₂	3102	2945	13.06
14	B₂	1513	1436	7.73
15	B₂	909	863	0.33
16	B₂	620	589	3.49
17	E	3185	3024	10.33
17	E	3185	3024	10.33
18	E	3106	2949	88.76
18	E	3106	2949	88.76
19	E	1514	1437	0.41
19	E	1514	1437	0.41
20	E	1310	1244	1.90
20	E	1310	1244	1.90
21	E	1261	1197	0.63
21	E	1261	1197	0.63
22	E	936	888	6.61
22	E	936	888	6.61
23	E	762	723	1.64
23	E	762	723	1.64

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	1.087	0.150
C2	0.000	-1.087	0.150
C3	-1.087	0.000	-0.150
C4	1.087	0.000	-0.150
H5	0.000	1.353	1.222
H6	0.000	2.009	-0.458
H7	0.000	-1.353	1.222
H8	0.000	-2.009	-0.458
H9	-1.353	0.000	-1.222
H10	-2.009	0.000	0.458
H11	1.353	0.000	-1.222
H12	2.009	0.000	0.458

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10	H11	H12
C1		2.1742	1.5664	1.5664	1.1046	1.1039	2.6656	3.1547	2.2127	2.3045	2.2127	2.3045
C2	2.1742		1.5664	1.5664	2.6656	3.1547	1.1046	1.1039	2.2127	2.3045	2.2127	2.3045
C3	1.5664	1.5664		2.1742	2.2127	2.3045	2.2127	2.3045	1.1046	1.1039	2.6656	3.1547
C4	1.5664	1.5664	2.1742		2.2127	2.3045	2.2127	2.3045	2.6656	3.1547	1.1046	1.1039
H5	1.1046	2.6656	2.2127	2.2127		1.8031	2.7070	3.7583	3.1043	2.5396	3.1043	2.5396
H6	1.1039	3.1547	2.3045	2.3045	1.8031		3.7583	4.0170	2.5396	2.9845	2.5396	2.9845
H7	2.6656	1.1046	2.2127	2.2127	2.7070	3.7583		1.8031	3.1043	2.5396	3.1043	2.5396
H8	3.1547	1.1039	2.3045	2.3045	3.7583	4.0170	1.8031		2.5396	2.9845	2.5396	2.9845
H9	2.2127	2.2127	1.1046	2.6656	3.1043	2.5396	3.1043	2.5396		1.8031	2.7070	3.7583
H10	2.3045	2.3045	1.1039	3.1547	2.5396	2.9845	2.5396	2.9845	1.8031		3.7583	4.0170
H11	2.2127	2.2127	2.6656	1.1046	3.1043	2.5396	3.1043	2.5396	2.7070	3.7583		1.8031
H12	2.3045	2.3045	3.1547	1.1039	2.5396	2.9845	2.5396	2.9845	3.7583	4.0170	1.8031

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C3	C2	87.898	C1	C3	H9	110.684
C1	C3	H10	118.281	C1	C4	C2	87.898
C1	C4	H11	110.684	C1	C4	H12	118.281
C2	C3	H9	110.684	C2	C3	H10	118.281
C2	C4	H11	110.684	C2	C4	H12	118.281
C3	C1	C4	87.898	C3	C1	H5	110.684
C3	C1	H6	118.281	C3	C2	C4	87.898
C3	C2	H7	110.684	C3	C2	H8	118.281
C4	C1	H5	110.684	C4	C1	H6	118.281
C4	C2	H7	110.684	C4	C2	H8	118.281
H5	C1	H6	109.464	H7	C2	H8	109.464
H9	C3	H10	109.464	H11	C4	H12	109.464

All results from a given calculation for C₄H₈ (cyclobutane)

using model chemistry: MP2/CEP-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: MP2/CEP-31G*

States and conformations

All results from a given calculation for C₄H₈ (cyclobutane)