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	hartrees
Energy at 0K	-26.869536
Energy at 298.15K	-26.878742
HF Energy	-26.510965
Nuclear repulsion energy	70.379207

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3060	2987	0.00
2	A₁	3008	2936	0.00
3	A₁	1532	1495	0.00
4	A₁	1223	1194	0.00
5	A₁	996	973	0.00
6	A₁	247	241	0.00
7	A₂	1291	1260	0.00
8	A₂	943	921	0.00
9	B₁	1278	1247	0.00
10	B₁	1145	1117	0.00
11	B₁	936	913	0.00
12	B₂	3095	3020	141.40
13	B₂	2992	2920	19.25
14	B₂	1521	1484	4.58
15	B₂	926	904	0.00
16	B₂	630	615	1.93
17	E	3074	3000	29.79
17	E	3074	3000	29.79
18	E	2997	2925	95.89
18	E	2997	2925	95.89
19	E	1509	1472	0.96
19	E	1509	1472	0.96
20	E	1315	1284	1.53
20	E	1315	1284	1.53
21	E	1241	1211	0.16
21	E	1241	1211	0.16
22	E	901	880	5.15
22	E	901	880	5.15
23	E	759	741	0.02
23	E	759	741	0.02

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	1.105	0.147
C2	0.000	-1.105	0.147
C3	-1.105	0.000	-0.147
C4	1.105	0.000	-0.147
H5	0.000	1.390	1.213
H6	0.000	2.015	-0.475
H7	0.000	-1.390	1.213
H8	0.000	-2.015	-0.475
H9	-1.390	0.000	-1.213
H10	-2.015	0.000	0.475
H11	1.390	0.000	-1.213
H12	2.015	0.000	0.475

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10	H11	H12
C1		2.2099	1.5900	1.5900	1.1038	1.1021	2.7131	3.1810	2.2367	2.3211	2.2367	2.3211
C2	2.2099		1.5900	1.5900	2.7131	3.1810	1.1038	1.1021	2.2367	2.3211	2.2367	2.3211
C3	1.5900	1.5900		2.2099	2.2367	2.3211	2.2367	2.3211	1.1038	1.1021	2.7131	3.1810
C4	1.5900	1.5900	2.2099		2.2367	2.3211	2.2367	2.3211	2.7131	3.1810	1.1038	1.1021
H5	1.1038	2.7131	2.2367	2.2367		1.8005	2.7795	3.8002	3.1228	2.5564	3.1228	2.5564
H6	1.1021	3.1810	2.3211	2.3211	1.8005		3.8002	4.0293	2.5564	3.0035	2.5564	3.0035
H7	2.7131	1.1038	2.2367	2.2367	2.7795	3.8002		1.8005	3.1228	2.5564	3.1228	2.5564
H8	3.1810	1.1021	2.3211	2.3211	3.8002	4.0293	1.8005		2.5564	3.0035	2.5564	3.0035
H9	2.2367	2.2367	1.1038	2.7131	3.1228	2.5564	3.1228	2.5564		1.8005	2.7795	3.8002
H10	2.3211	2.3211	1.1021	3.1810	2.5564	3.0035	2.5564	3.0035	1.8005		3.8002	4.0293
H11	2.2367	2.2367	2.7131	1.1038	3.1228	2.5564	3.1228	2.5564	2.7795	3.8002		1.8005
H12	2.3211	2.3211	3.1810	1.1021	2.5564	3.0035	2.5564	3.0035	3.8002	4.0293	1.8005

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C3	C2	88.043	C1	C3	H9	110.967
C1	C3	H10	117.989	C1	C4	C2	88.043
C1	C4	H11	110.967	C1	C4	H12	117.989
C2	C3	H9	110.967	C2	C3	H10	117.989
C2	C4	H11	110.967	C2	C4	H12	117.989
C3	C1	C4	88.043	C3	C1	H5	110.967
C3	C1	H6	117.989	C3	C2	C4	88.043
C3	C2	H7	110.967	C3	C2	H8	117.989
C4	C1	H5	110.967	C4	C1	H6	117.989
C4	C2	H7	110.967	C4	C2	H8	117.989
H5	C1	H6	109.415	H7	C2	H8	109.415
H9	C3	H10	109.415	H11	C4	H12	109.415

All results from a given calculation for C₄H₈ (cyclobutane)

using model chemistry: MP2/CEP-121G

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-121G

States and conformations

All results from a given calculation for C₄H₈ (cyclobutane)