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	hartrees
Energy at 0K	-155.633573
Energy at 298.15K	-155.642758
HF Energy	-155.229821
Nuclear repulsion energy	125.249818

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3154	3154	0.00
2	A₁	3111	3111	0.00
3	A₁	1595	1595	0.00
4	A₁	1204	1204	0.00
5	A₁	982	982	0.00
6	A₁	225	225	0.00
7	A₂	1309	1309	0.00
8	A₂	1016	1016	0.00
9	B₁	1309	1309	0.00
10	B₁	1200	1200	0.00
11	B₁	907	907	0.00
12	B₂	3182	3182	66.59
13	B₂	3105	3105	10.60
14	B₂	1573	1573	5.16
15	B₂	940	940	0.02
16	B₂	645	645	2.85
17	E	3165	3165	16.38
17	E	3165	3165	16.38
18	E	3105	3105	46.19
18	E	3105	3105	46.19
19	E	1565	1565	1.57
19	E	1565	1565	1.57
20	E	1335	1335	2.66
20	E	1335	1335	2.66
21	E	1279	1279	1.41
21	E	1279	1279	1.41
22	E	886	886	3.36
22	E	886	886	3.36
23	E	768	768	0.22
23	E	768	768	0.22

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	1.103	0.138
C2	0.000	-1.103	0.138
C3	-1.103	0.000	-0.138
C4	1.103	0.000	-0.138
H5	0.000	1.391	1.194
H6	0.000	1.992	-0.497
H7	0.000	-1.391	1.194
H8	0.000	-1.992	-0.497
H9	-1.391	0.000	-1.194
H10	-1.992	0.000	0.497
H11	1.391	0.000	-1.194
H12	1.992	0.000	0.497

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10	H11	H12
C1		2.2055	1.5837	1.5837	1.0948	1.0922	2.7084	3.1587	2.2193	2.3046	2.2193	2.3046
C2	2.2055		1.5837	1.5837	2.7084	3.1587	1.0948	1.0922	2.2193	2.3046	2.2193	2.3046
C3	1.5837	1.5837		2.2055	2.2193	2.3046	2.2193	2.3046	1.0948	1.0922	2.7084	3.1587
C4	1.5837	1.5837	2.2055		2.2193	2.3046	2.2193	2.3046	2.7084	3.1587	1.0948	1.0922
H5	1.0948	2.7084	2.2193	2.2193		1.7943	2.7826	3.7819	3.0940	2.5274	3.0940	2.5274
H6	1.0922	3.1587	2.3046	2.3046	1.7943		3.7819	3.9830	2.5274	2.9867	2.5274	2.9867
H7	2.7084	1.0948	2.2193	2.2193	2.7826	3.7819		1.7943	3.0940	2.5274	3.0940	2.5274
H8	3.1587	1.0922	2.3046	2.3046	3.7819	3.9830	1.7943		2.5274	2.9867	2.5274	2.9867
H9	2.2193	2.2193	1.0948	2.7084	3.0940	2.5274	3.0940	2.5274		1.7943	2.7826	3.7819
H10	2.3046	2.3046	1.0922	3.1587	2.5274	2.9867	2.5274	2.9867	1.7943		3.7819	3.9830
H11	2.2193	2.2193	2.7084	1.0948	3.0940	2.5274	3.0940	2.5274	2.7826	3.7819		1.7943
H12	2.3046	2.3046	3.1587	1.0922	2.5274	2.9867	2.5274	2.9867	3.7819	3.9830	1.7943

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C3	C2	88.263	C1	C3	H9	110.577
C1	C3	H10	117.736	C1	C4	C2	88.263
C1	C4	H11	110.577	C1	C4	H12	117.736
C2	C3	H9	110.577	C2	C3	H10	117.736
C2	C4	H11	110.577	C2	C4	H12	117.736
C3	C1	C4	88.263	C3	C1	H5	110.577
C3	C1	H6	117.736	C3	C2	C4	88.263
C3	C2	H7	110.577	C3	C2	H8	117.736
C4	C1	H5	110.577	C4	C1	H6	117.736
C4	C2	H7	110.577	C4	C2	H8	117.736
H5	C1	H6	110.256	H7	C2	H8	110.256
H9	C3	H10	110.256	H11	C4	H12	110.256

All results from a given calculation for C₄H₈ (cyclobutane)

using model chemistry: MP3=FULL/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: MP3=FULL/3-21G

States and conformations

All results from a given calculation for C₄H₈ (cyclobutane)