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	hartrees
Energy at 0K	-155.600188
Energy at 298.15K	-155.609404
HF Energy	-155.229944
Nuclear repulsion energy	125.464579

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3172	3029	0.00
2	A₁	3125	2984	0.00
3	A₁	1601	1529	0.00
4	A₁	1211	1156	0.00
5	A₁	986	941	0.00
6	A₁	239	229	0.00
7	A₂	1314	1255	0.00
8	A₂	1019	973	0.00
9	B₁	1315	1255	0.00
10	B₁	1203	1148	0.00
11	B₁	907	866	0.00
12	B₂	3201	3057	62.23
13	B₂	3119	2978	9.69
14	B₂	1582	1510	5.38
15	B₂	947	904	0.02
16	B₂	643	614	3.00
17	E	3185	3041	15.29
17	E	3185	3041	15.29
18	E	3120	2979	46.14
18	E	3120	2979	46.14
19	E	1572	1501	1.19
19	E	1572	1501	1.19
20	E	1339	1279	2.42
20	E	1339	1279	2.42
21	E	1281	1223	1.70
21	E	1281	1223	1.70
22	E	889	848	3.41
22	E	889	848	3.41
23	E	773	738	0.31
23	E	773	738	0.31

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	1.100	0.144
C2	0.000	-1.100	0.144
C3	-1.100	0.000	-0.144
C4	1.100	0.000	-0.144
H5	0.000	1.371	1.203
H6	0.000	1.997	-0.477
H7	0.000	-1.371	1.203
H8	0.000	-1.997	-0.477
H9	-1.371	0.000	-1.203
H10	-1.997	0.000	0.477
H11	1.371	0.000	-1.203
H12	1.997	0.000	0.477

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10	H11	H12
C1		2.1992	1.5814	1.5814	1.0937	1.0913	2.6883	3.1582	2.2143	2.3040	2.2143	2.3040
C2	2.1992		1.5814	1.5814	2.6883	3.1582	1.0937	1.0913	2.2143	2.3040	2.2143	2.3040
C3	1.5814	1.5814		2.1992	2.2143	2.3040	2.2143	2.3040	1.0937	1.0913	2.6883	3.1582
C4	1.5814	1.5814	2.1992		2.2143	2.3040	2.2143	2.3040	2.6883	3.1582	1.0937	1.0913
H5	1.0937	2.6883	2.2143	2.2143		1.7932	2.7423	3.7641	3.0904	2.5288	3.0904	2.5288
H6	1.0913	3.1582	2.3040	2.3040	1.7932		3.7641	3.9940	2.5288	2.9811	2.5288	2.9811
H7	2.6883	1.0937	2.2143	2.2143	2.7423	3.7641		1.7932	3.0904	2.5288	3.0904	2.5288
H8	3.1582	1.0913	2.3040	2.3040	3.7641	3.9940	1.7932		2.5288	2.9811	2.5288	2.9811
H9	2.2143	2.2143	1.0937	2.6883	3.0904	2.5288	3.0904	2.5288		1.7932	2.7423	3.7641
H10	2.3040	2.3040	1.0913	3.1582	2.5288	2.9811	2.5288	2.9811	1.7932		3.7641	3.9940
H11	2.2143	2.2143	2.6883	1.0937	3.0904	2.5288	3.0904	2.5288	2.7423	3.7641		1.7932
H12	2.3040	2.3040	3.1582	1.0913	2.5288	2.9811	2.5288	2.9811	3.7641	3.9940	1.7932

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C3	C2	88.107	C1	C3	H9	110.406
C1	C3	H10	117.929	C1	C4	C2	88.107
C1	C4	H11	110.406	C1	C4	H12	117.929
C2	C3	H9	110.406	C2	C3	H10	117.929
C2	C4	H11	110.406	C2	C4	H12	117.929
C3	C1	C4	88.107	C3	C1	H5	110.406
C3	C1	H6	117.929	C3	C2	C4	88.107
C3	C2	H7	110.406	C3	C2	H8	117.929
C4	C1	H5	110.406	C4	C1	H6	117.929
C4	C2	H7	110.406	C4	C2	H8	117.929
H5	C1	H6	110.307	H7	C2	H8	110.307
H9	C3	H10	110.307	H11	C4	H12	110.307

All results from a given calculation for C₄H₈ (cyclobutane)

using model chemistry: MP2=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: MP2=FULL/3-21G

States and conformations

All results from a given calculation for C₄H₈ (cyclobutane)