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	hartrees
Energy at 0K	-156.766395
Energy at 298.15K	-156.775624
HF Energy	-156.116362
Nuclear repulsion energy	127.488736

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3181	3004	0.00
2	A₁	3130	2956	0.00
3	A₁	1546	1460	0.00
4	A₁	1192	1125	0.00
5	A₁	1054	995	0.00
6	A₁	249	235	0.00
7	A₂	1266	1196	0.00
8	A₂	973	919	0.00
9	B₁	1278	1207	0.00
10	B₁	1178	1113	0.00
11	B₁	968	914	0.00
12	B₂	3207	3029	54.65
13	B₂	3125	2951	8.59
14	B₂	1514	1430	4.79
15	B₂	923	871	0.03
16	B₂	624	589	2.81
17	E	3193	3016	14.88
17	E	3193	3016	14.88
18	E	3125	2952	50.45
18	E	3125	2952	50.45
19	E	1505	1421	0.24
19	E	1505	1421	0.24
20	E	1304	1232	1.29
20	E	1304	1232	1.29
21	E	1272	1201	0.33
21	E	1272	1201	0.33
22	E	942	890	2.48
22	E	942	890	2.48
23	E	770	727	0.74
23	E	770	727	0.74

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	1.073	0.152
C2	0.000	-1.073	0.152
C3	-1.073	0.000	-0.152
C4	1.073	0.000	-0.152
H5	0.000	1.327	1.214
H6	0.000	1.992	-0.434
H7	0.000	-1.327	1.214
H8	0.000	-1.992	-0.434
H9	-1.327	0.000	-1.214
H10	-1.992	0.000	0.434
H11	1.327	0.000	-1.214
H12	1.992	0.000	0.434

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10	H11	H12
C1		2.1451	1.5471	1.5471	1.0918	1.0902	2.6238	3.1200	2.1858	2.2798	2.1858	2.2798
C2	2.1451		1.5471	1.5471	2.6238	3.1200	1.0918	1.0902	2.1858	2.2798	2.1858	2.2798
C3	1.5471	1.5471		2.1451	2.1858	2.2798	2.1858	2.2798	1.0918	1.0902	2.6238	3.1200
C4	1.5471	1.5471	2.1451		2.1858	2.2798	2.1858	2.2798	2.6238	3.1200	1.0918	1.0902
H5	1.0918	2.6238	2.1858	2.1858		1.7768	2.6537	3.7053	3.0687	2.5175	3.0687	2.5175
H6	1.0902	3.1200	2.2798	2.2798	1.7768		3.7053	3.9839	2.5175	2.9475	2.5175	2.9475
H7	2.6238	1.0918	2.1858	2.1858	2.6537	3.7053		1.7768	3.0687	2.5175	3.0687	2.5175
H8	3.1200	1.0902	2.2798	2.2798	3.7053	3.9839	1.7768		2.5175	2.9475	2.5175	2.9475
H9	2.1858	2.1858	1.0918	2.6238	3.0687	2.5175	3.0687	2.5175		1.7768	2.6537	3.7053
H10	2.2798	2.2798	1.0902	3.1200	2.5175	2.9475	2.5175	2.9475	1.7768		3.7053	3.9839
H11	2.1858	2.1858	2.6238	1.0918	3.0687	2.5175	3.0687	2.5175	2.6537	3.7053		1.7768
H12	2.2798	2.2798	3.1200	1.0902	2.5175	2.9475	2.5175	2.9475	3.7053	3.9839	1.7768

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C3	C2	87.778	C1	C3	H9	110.670
C1	C3	H10	118.608	C1	C4	C2	87.778
C1	C4	H11	110.670	C1	C4	H12	118.608
C2	C3	H9	110.670	C2	C3	H10	118.608
C2	C4	H11	110.670	C2	C4	H12	118.608
C3	C1	C4	87.778	C3	C1	H5	110.670
C3	C1	H6	118.608	C3	C2	C4	87.778
C3	C2	H7	110.670	C3	C2	H8	118.608
C4	C1	H5	110.670	C4	C1	H6	118.608
C4	C2	H7	110.670	C4	C2	H8	118.608
H5	C1	H6	109.037	H7	C2	H8	109.037
H9	C3	H10	109.037	H11	C4	H12	109.037

All results from a given calculation for C₄H₈ (cyclobutane)

using model chemistry: MP2/6-31G(2df,p)

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: MP2/6-31G(2df,p)

States and conformations

All results from a given calculation for C₄H₈ (cyclobutane)