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	hartrees
Energy at 0K	-156.665988
Energy at 298.15K	-156.675208
HF Energy	-156.096213
Nuclear repulsion energy	126.959780

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3124	2975	0.00
2	A₁	3089	2942	0.00
3	A₁	1577	1502	0.00
4	A₁	1217	1159	0.00
5	A₁	1052	1002	0.00
6	A₁	232	221	0.00
7	A₂	1285	1224	0.00
8	A₂	983	936	0.00
9	B₁	1298	1236	0.00
10	B₁	1198	1141	0.00
11	B₁	975	928	0.00
12	B₂	3151	3000	96.75
13	B₂	3081	2934	11.92
14	B₂	1542	1469	4.23
15	B₂	928	884	0.05
16	B₂	648	617	2.19
17	E	3135	2986	22.03
17	E	3135	2986	22.03
18	E	3082	2935	66.73
18	E	3082	2935	66.73
19	E	1538	1464	0.31
19	E	1538	1464	0.31
20	E	1333	1270	1.07
20	E	1333	1270	1.07
21	E	1279	1218	0.20
21	E	1279	1218	0.20
22	E	946	900	2.83
22	E	946	900	2.83
23	E	780	742	0.49
23	E	780	742	0.49

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	1.078	0.138
C2	0.000	-1.078	0.138
C3	-1.078	0.000	-0.138
C4	1.078	0.000	-0.138
H5	0.000	1.380	1.194
H6	0.000	1.982	-0.483
H7	0.000	-1.380	1.194
H8	0.000	-1.982	-0.483
H9	-1.380	0.000	-1.194
H10	-1.982	0.000	0.483
H11	1.380	0.000	-1.194
H12	1.982	0.000	0.483

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10	H11	H12
C1		2.1567	1.5499	1.5499	1.0975	1.0965	2.6749	3.1224	2.2002	2.2822	2.2002	2.2822
C2	2.1567		1.5499	1.5499	2.6749	3.1224	1.0975	1.0965	2.2002	2.2822	2.2002	2.2822
C3	1.5499	1.5499		2.1567	2.2002	2.2822	2.2002	2.2822	1.0975	1.0965	2.6749	3.1224
C4	1.5499	1.5499	2.1567		2.2002	2.2822	2.2002	2.2822	2.6749	3.1224	1.0975	1.0965
H5	1.0975	2.6749	2.2002	2.2002		1.7818	2.7592	3.7563	3.0834	2.5169	3.0834	2.5169
H6	1.0965	3.1224	2.2822	2.2822	1.7818		3.7563	3.9632	2.5169	2.9643	2.5169	2.9643
H7	2.6749	1.0975	2.2002	2.2002	2.7592	3.7563		1.7818	3.0834	2.5169	3.0834	2.5169
H8	3.1224	1.0965	2.2822	2.2822	3.7563	3.9632	1.7818		2.5169	2.9643	2.5169	2.9643
H9	2.2002	2.2002	1.0975	2.6749	3.0834	2.5169	3.0834	2.5169		1.7818	2.7592	3.7563
H10	2.2822	2.2822	1.0965	3.1224	2.5169	2.9643	2.5169	2.9643	1.7818		3.7563	3.9632
H11	2.2002	2.2002	2.6749	1.0975	3.0834	2.5169	3.0834	2.5169	2.7592	3.7563		1.7818
H12	2.2822	2.2822	3.1224	1.0965	2.5169	2.9643	2.5169	2.9643	3.7563	3.9632	1.7818

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C3	C2	88.170	C1	C3	H9	111.272
C1	C3	H10	118.152	C1	C4	C2	88.170
C1	C4	H11	111.272	C1	C4	H12	118.152
C2	C3	H9	111.272	C2	C3	H10	118.152
C2	C4	H11	111.272	C2	C4	H12	118.152
C3	C1	C4	88.170	C3	C1	H5	111.272
C3	C1	H6	118.152	C3	C2	C4	88.170
C3	C2	H7	111.272	C3	C2	H8	118.152
C4	C1	H5	111.272	C4	C1	H6	118.152
C4	C2	H7	111.272	C4	C2	H8	118.152
H5	C1	H6	108.605	H7	C2	H8	108.605
H9	C3	H10	108.605	H11	C4	H12	108.605

All results from a given calculation for C₄H₈ (cyclobutane)

using model chemistry: QCISD/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: QCISD/6-31G*

States and conformations

All results from a given calculation for C₄H₈ (cyclobutane)