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	hartrees
Energy at 0K	-156.683099
Energy at 298.15K	-156.692301
HF Energy	-156.095868
Nuclear repulsion energy	126.794016

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A₁	3107	2981
2	A₁	3071	2946
3	A₁	1568	1504
4	A₁	1208	1159
5	A₁	1042	1000
6	A₁	238	228
7	A₂	1271	1219
8	A₂	974	934
9	B₁	1287	1234
10	B₁	1185	1137
11	B₁	963	923
12	B₂	3134	3006
13	B₂	3063	2939
14	B₂	1534	1472
15	B₂	925	887
16	B₂	641	614
17	E	3119	2992
17	E	3119	2992
18	E	3064	2939
18	E	3064	2939
19	E	1529	1467
19	E	1529	1467
20	E	1320	1266
20	E	1320	1266
21	E	1268	1217
21	E	1268	1217
22	E	935	897
22	E	935	897
23	E	773	742
23	E	773	742

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	1.079	0.142
C2	0.000	-1.079	0.142
C3	-1.079	0.000	-0.142
C4	1.079	0.000	-0.142
H5	0.000	1.371	1.202
H6	0.000	1.989	-0.473
H7	0.000	-1.371	1.202
H8	0.000	-1.989	-0.473
H9	-1.371	0.000	-1.202
H10	-1.989	0.000	0.473
H11	1.371	0.000	-1.202
H12	1.989	0.000	0.473

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10	H11	H12
C1		2.1585	1.5525	1.5525	1.0990	1.0980	2.6693	3.1290	2.2022	2.2868	2.2022	2.2868
C2	2.1585		1.5525	1.5525	2.6693	3.1290	1.0990	1.0980	2.2022	2.2868	2.2022	2.2868
C3	1.5525	1.5525		2.1585	2.2022	2.2868	2.2022	2.2868	1.0990	1.0980	2.6693	3.1290
C4	1.5525	1.5525	2.1585		2.2022	2.2868	2.2022	2.2868	2.6693	3.1290	1.0990	1.0980
H5	1.0990	2.6693	2.2022	2.2022		1.7851	2.7415	3.7538	3.0877	2.5229	3.0877	2.5229
H6	1.0980	3.1290	2.2868	2.2868	1.7851		3.7538	3.9774	2.5229	2.9673	2.5229	2.9673
H7	2.6693	1.0990	2.2022	2.2022	2.7415	3.7538		1.7851	3.0877	2.5229	3.0877	2.5229
H8	3.1290	1.0980	2.2868	2.2868	3.7538	3.9774	1.7851		2.5229	2.9673	2.5229	2.9673
H9	2.2022	2.2022	1.0990	2.6693	3.0877	2.5229	3.0877	2.5229		1.7851	2.7415	3.7538
H10	2.2868	2.2868	1.0980	3.1290	2.5229	2.9673	2.5229	2.9673	1.7851		3.7538	3.9774
H11	2.2022	2.2022	2.6693	1.0990	3.0877	2.5229	3.0877	2.5229	2.7415	3.7538		1.7851
H12	2.2868	2.2868	3.1290	1.0980	2.5229	2.9673	2.5229	2.9673	3.7538	3.9774	1.7851

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C3	C2	88.080	C1	C3	H9	111.155
C1	C3	H10	118.247	C1	C4	C2	88.080
C1	C4	H11	111.155	C1	C4	H12	118.247
C2	C3	H9	111.155	C2	C3	H10	118.247
C2	C4	H11	111.155	C2	C4	H12	118.247
C3	C1	C4	88.080	C3	C1	H5	111.155
C3	C1	H6	118.247	C3	C2	C4	88.080
C3	C2	H7	111.155	C3	C2	H8	118.247
C4	C1	H5	111.155	C4	C1	H6	118.247
C4	C2	H7	111.155	C4	C2	H8	118.247
H5	C1	H6	108.690	H7	C2	H8	108.690
H9	C3	H10	108.690	H11	C4	H12	108.690

All results from a given calculation for C₄H₈ (cyclobutane)

using model chemistry: QCISD(T)/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(T)/6-31G*

States and conformations

All results from a given calculation for C₄H₈ (cyclobutane)