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	hartrees
Energy at 0K	-156.885904
Energy at 298.15K	-156.895136
HF Energy	-156.145206
Nuclear repulsion energy	127.148125

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A₁	3110	2974
2	A₁	3068	2933
3	A₁	1539	1471
4	A₁	1198	1146
5	A₁	1028	982
6	A₁	263	251
7	A₂	1259	1203
8	A₂	961	919
9	B₁	1272	1216
10	B₁	1147	1097
11	B₁	938	897
12	B₂	3138	3000
13	B₂	3062	2927
14	B₂	1508	1441
15	B₂	930	889
16	B₂	629	601
17	E	3122	2984
17	E	3122	2984
18	E	3063	2928
18	E	3063	2928
19	E	1502	1436
19	E	1502	1436
20	E	1307	1249
20	E	1307	1249
21	E	1254	1199
21	E	1254	1199
22	E	919	878
22	E	919	878
23	E	766	733
23	E	766	733

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	1.076	0.152
C2	0.000	-1.076	0.152
C3	-1.076	0.000	-0.152
C4	1.076	0.000	-0.152
H5	0.000	1.334	1.215
H6	0.000	1.992	-0.442
H7	0.000	-1.334	1.215
H8	0.000	-1.992	-0.442
H9	-1.334	0.000	-1.215
H10	-1.992	0.000	0.442
H11	1.334	0.000	-1.215
H12	1.992	0.000	0.442

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10	H11	H12
C1		2.1523	1.5521	1.5521	1.0934	1.0919	2.6339	3.1253	2.1923	2.2827	2.1923	2.2827
C2	2.1523		1.5521	1.5521	2.6339	3.1253	1.0934	1.0919	2.1923	2.2827	2.1923	2.2827
C3	1.5521	1.5521		2.1523	2.1923	2.2827	2.1923	2.2827	1.0934	1.0919	2.6339	3.1253
C4	1.5521	1.5521	2.1523		2.1923	2.2827	2.1923	2.2827	2.6339	3.1253	1.0934	1.0919
H5	1.0934	2.6339	2.1923	2.1923		1.7830	2.6678	3.7159	3.0760	2.5188	3.0760	2.5188
H6	1.0919	3.1253	2.2827	2.2827	1.7830		3.7159	3.9841	2.5188	2.9528	2.5188	2.9528
H7	2.6339	1.0934	2.1923	2.1923	2.6678	3.7159		1.7830	3.0760	2.5188	3.0760	2.5188
H8	3.1253	1.0919	2.2827	2.2827	3.7159	3.9841	1.7830		2.5188	2.9528	2.5188	2.9528
H9	2.1923	2.1923	1.0934	2.6339	3.0760	2.5188	3.0760	2.5188		1.7830	2.6678	3.7159
H10	2.2827	2.2827	1.0919	3.1253	2.5188	2.9528	2.5188	2.9528	1.7830		3.7159	3.9841
H11	2.1923	2.1923	2.6339	1.0934	3.0760	2.5188	3.0760	2.5188	2.6678	3.7159		1.7830
H12	2.2827	2.2827	3.1253	1.0919	2.5188	2.9528	2.5188	2.9528	3.7159	3.9841	1.7830

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C3	C2	87.796	C1	C3	H9	110.733
C1	C3	H10	118.349	C1	C4	C2	87.796
C1	C4	H11	110.733	C1	C4	H12	118.349
C2	C3	H9	110.733	C2	C3	H10	118.349
C2	C4	H11	110.733	C2	C4	H12	118.349
C3	C1	C4	87.796	C3	C1	H5	110.733
C3	C1	H6	118.349	C3	C2	C4	87.796
C3	C2	H7	110.733	C3	C2	H8	118.349
C4	C1	H5	110.733	C4	C1	H6	118.349
C4	C2	H7	110.733	C4	C2	H8	118.349
H5	C1	H6	109.352	H7	C2	H8	109.352
H9	C3	H10	109.352	H11	C4	H12	109.352

All results from a given calculation for C₄H₈ (cyclobutane)

using model chemistry: CCSD(T)=FULL/TZVP

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: CCSD(T)=FULL/TZVP

States and conformations

All results from a given calculation for C₄H₈ (cyclobutane)