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	hartrees
Energy at 0K	-156.703278
Energy at 298.15K	-156.712569
HF Energy	-156.109240
Nuclear repulsion energy	127.858765

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3207	2997	0.00
2	A₁	3156	2949	0.00
3	A₁	1584	1480	0.00
4	A₁	1218	1138	0.00
5	A₁	1066	996	0.00
6	A₁	262	245	0.00
7	A₂	1290	1206	0.00
8	A₂	988	923	0.00
9	B₁	1305	1219	0.00
10	B₁	1204	1125	0.00
11	B₁	980	916	0.00
12	B₂	3233	3021	79.01
13	B₂	3149	2943	11.53
14	B₂	1551	1449	4.62
15	B₂	941	880	0.14
16	B₂	639	598	2.05
17	E	3219	3008	20.00
17	E	3219	3008	20.00
18	E	3150	2944	60.91
18	E	3150	2944	60.91
19	E	1543	1442	0.03
19	E	1543	1442	0.03
20	E	1338	1250	1.01
20	E	1338	1250	1.01
21	E	1291	1207	0.19
21	E	1291	1207	0.19
22	E	954	891	2.39
22	E	954	891	2.39
23	E	785	733	0.76
23	E	785	733	0.76

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	1.069	0.152
C2	0.000	-1.069	0.152
C3	-1.069	0.000	-0.152
C4	1.069	0.000	-0.152
H5	0.000	1.325	1.210
H6	0.000	1.986	-0.434
H7	0.000	-1.325	1.210
H8	0.000	-1.986	-0.434
H9	-1.325	0.000	-1.210
H10	-1.986	0.000	0.434
H11	1.325	0.000	-1.210
H12	1.986	0.000	0.434

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10	H11	H12
C1		2.1380	1.5419	1.5419	1.0893	1.0881	2.6180	3.1108	2.1805	2.2732	2.1805	2.2732
C2	2.1380		1.5419	1.5419	2.6180	3.1108	1.0893	1.0881	2.1805	2.2732	2.1805	2.2732
C3	1.5419	1.5419		2.1380	2.1805	2.2732	2.1805	2.2732	1.0893	1.0881	2.6180	3.1108
C4	1.5419	1.5419	2.1380		2.1805	2.2732	2.1805	2.2732	2.6180	3.1108	1.0893	1.0881
H5	1.0893	2.6180	2.1805	2.1805		1.7717	2.6509	3.6973	3.0616	2.5111	3.0616	2.5111
H6	1.0881	3.1108	2.2732	2.2732	1.7717		3.6973	3.9726	2.5111	2.9398	2.5111	2.9398
H7	2.6180	1.0893	2.1805	2.1805	2.6509	3.6973		1.7717	3.0616	2.5111	3.0616	2.5111
H8	3.1108	1.0881	2.2732	2.2732	3.6973	3.9726	1.7717		2.5111	2.9398	2.5111	2.9398
H9	2.1805	2.1805	1.0893	2.6180	3.0616	2.5111	3.0616	2.5111		1.7717	2.6509	3.6973
H10	2.2732	2.2732	1.0881	3.1108	2.5111	2.9398	2.5111	2.9398	1.7717		3.6973	3.9726
H11	2.1805	2.1805	2.6180	1.0893	3.0616	2.5111	3.0616	2.5111	2.6509	3.6973		1.7717
H12	2.2732	2.2732	3.1108	1.0881	2.5111	2.9398	2.5111	2.9398	3.6973	3.9726	1.7717

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C3	C2	87.782	C1	C3	H9	110.759
C1	C3	H10	118.600	C1	C4	C2	87.782
C1	C4	H11	110.759	C1	C4	H12	118.600
C2	C3	H9	110.759	C2	C3	H10	118.600
C2	C4	H11	110.759	C2	C4	H12	118.600
C3	C1	C4	87.782	C3	C1	H5	110.759
C3	C1	H6	118.600	C3	C2	C4	87.782
C3	C2	H7	110.759	C3	C2	H8	118.600
C4	C1	H5	110.759	C4	C1	H6	118.600
C4	C2	H7	110.759	C4	C2	H8	118.600
H5	C1	H6	108.916	H7	C2	H8	108.916
H9	C3	H10	108.916	H11	C4	H12	108.916

All results from a given calculation for C₄H₈ (cyclobutane)

using model chemistry: MP2=FULL/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: MP2=FULL/6-31G**

States and conformations

All results from a given calculation for C₄H₈ (cyclobutane)