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	hartrees
Energy at 0K	-155.593569
Energy at 298.15K	-155.602772
HF Energy	-155.229915
Nuclear repulsion energy	125.441412

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3172	3017	0.00
2	A₁	3125	2972	0.00
3	A₁	1601	1523	0.00
4	A₁	1211	1152	0.00
5	A₁	985	937	0.00
6	A₁	239	227	0.00
7	A₂	1313	1249	0.00
8	A₂	1019	969	0.00
9	B₁	1314	1250	0.00
10	B₁	1202	1144	0.00
11	B₁	907	862	0.00
12	B₂	3201	3045	62.60
13	B₂	3118	2967	9.64
14	B₂	1582	1505	5.35
15	B₂	947	900	0.02
16	B₂	643	612	2.99
17	E	3184	3029	15.27
17	E	3184	3029	15.27
18	E	3119	2967	46.44
18	E	3119	2967	46.44
19	E	1572	1496	1.17
19	E	1572	1496	1.17
20	E	1339	1274	2.38
20	E	1339	1274	2.38
21	E	1281	1219	1.70
21	E	1281	1219	1.70
22	E	888	845	3.40
22	E	888	845	3.40
23	E	773	736	0.31
23	E	773	736	0.31

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	1.100	0.144
C2	0.000	-1.100	0.144
C3	-1.100	0.000	-0.144
C4	1.100	0.000	-0.144
H5	0.000	1.372	1.203
H6	0.000	1.997	-0.478
H7	0.000	-1.372	1.203
H8	0.000	-1.997	-0.478
H9	-1.372	0.000	-1.203
H10	-1.997	0.000	0.478
H11	1.372	0.000	-1.203
H12	1.997	0.000	0.478

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10	H11	H12
C1		2.1997	1.5817	1.5817	1.0938	1.0914	2.6893	3.1586	2.2148	2.3043	2.2148	2.3043
C2	2.1997		1.5817	1.5817	2.6893	3.1586	1.0938	1.0914	2.2148	2.3043	2.2148	2.3043
C3	1.5817	1.5817		2.1997	2.2148	2.3043	2.2148	2.3043	1.0938	1.0914	2.6893	3.1586
C4	1.5817	1.5817	2.1997		2.2148	2.3043	2.2148	2.3043	2.6893	3.1586	1.0938	1.0914
H5	1.0938	2.6893	2.2148	2.2148		1.7934	2.7440	3.7651	3.0909	2.5291	3.0909	2.5291
H6	1.0914	3.1586	2.3043	2.3043	1.7934		3.7651	3.9941	2.5291	2.9817	2.5291	2.9817
H7	2.6893	1.0938	2.2148	2.2148	2.7440	3.7651		1.7934	3.0909	2.5291	3.0909	2.5291
H8	3.1586	1.0914	2.3043	2.3043	3.7651	3.9941	1.7934		2.5291	2.9817	2.5291	2.9817
H9	2.2148	2.2148	1.0938	2.6893	3.0909	2.5291	3.0909	2.5291		1.7934	2.7440	3.7651
H10	2.3043	2.3043	1.0914	3.1586	2.5291	2.9817	2.5291	2.9817	1.7934		3.7651	3.9941
H11	2.2148	2.2148	2.6893	1.0938	3.0909	2.5291	3.0909	2.5291	2.7440	3.7651		1.7934
H12	2.3043	2.3043	3.1586	1.0914	2.5291	2.9817	2.5291	2.9817	3.7651	3.9941	1.7934

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C3	C2	88.112	C1	C3	H9	110.414
C1	C3	H10	117.920	C1	C4	C2	88.112
C1	C4	H11	110.414	C1	C4	H12	117.920
C2	C3	H9	110.414	C2	C3	H10	117.920
C2	C4	H11	110.414	C2	C4	H12	117.920
C3	C1	C4	88.112	C3	C1	H5	110.414
C3	C1	H6	117.920	C3	C2	C4	88.112
C3	C2	H7	110.414	C3	C2	H8	117.920
C4	C1	H5	110.414	C4	C1	H6	117.920
C4	C2	H7	110.414	C4	C2	H8	117.920
H5	C1	H6	110.307	H7	C2	H8	110.307
H9	C3	H10	110.307	H11	C4	H12	110.307

All results from a given calculation for C₄H₈ (cyclobutane)

using model chemistry: MP2/3-21G*

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: MP2/3-21G*

States and conformations

All results from a given calculation for C₄H₈ (cyclobutane)