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	hartrees
Energy at 0K	-156.856402
Energy at 298.15K	-156.865660
HF Energy	-156.134129
Nuclear repulsion energy	127.101935

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3157	3157	0.00
2	A₁	3114	3114	0.00
3	A₁	1555	1555	0.00
4	A₁	1204	1204	0.00
5	A₁	1051	1051	0.00
6	A₁	248	248	0.00
7	A₂	1271	1271	0.00
8	A₂	979	979	0.00
9	B₁	1288	1288	0.00
10	B₁	1187	1187	0.00
11	B₁	968	968	0.00
12	B₂	3184	3184	94.90
13	B₂	3109	3109	15.38
14	B₂	1519	1519	4.65
15	B₂	929	929	0.09
16	B₂	637	637	1.72
17	E	3168	3168	26.06
17	E	3168	3168	26.06
18	E	3109	3109	63.43
18	E	3109	3109	63.43
19	E	1514	1514	0.51
19	E	1514	1514	0.51
20	E	1323	1323	1.89
20	E	1323	1323	1.89
21	E	1274	1274	0.16
21	E	1274	1274	0.16
22	E	940	940	2.70
22	E	940	940	2.70
23	E	775	775	0.23
23	E	775	775	0.23

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	1.078	0.146
C2	0.000	-1.078	0.146
C3	-1.078	0.000	-0.146
C4	1.078	0.000	-0.146
H5	0.000	1.351	1.205
H6	0.000	1.986	-0.459
H7	0.000	-1.351	1.205
H8	0.000	-1.986	-0.459
H9	-1.351	0.000	-1.205
H10	-1.986	0.000	0.459
H11	1.351	0.000	-1.205
H12	1.986	0.000	0.459

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10	H11	H12
C1		2.1552	1.5518	1.5518	1.0937	1.0920	2.6491	3.1233	2.1936	2.2815	2.1936	2.2815
C2	2.1552		1.5518	1.5518	2.6491	3.1233	1.0937	1.0920	2.1936	2.2815	2.1936	2.2815
C3	1.5518	1.5518		2.1552	2.1936	2.2815	2.1936	2.2815	1.0937	1.0920	2.6491	3.1233
C4	1.5518	1.5518	2.1552		2.1936	2.2815	2.1936	2.2815	2.6491	3.1233	1.0937	1.0920
H5	1.0937	2.6491	2.1936	2.1936		1.7817	2.7011	3.7291	3.0756	2.5154	3.0756	2.5154
H6	1.0920	3.1233	2.2815	2.2815	1.7817		3.7291	3.9730	2.5154	2.9555	2.5154	2.9555
H7	2.6491	1.0937	2.1936	2.1936	2.7011	3.7291		1.7817	3.0756	2.5154	3.0756	2.5154
H8	3.1233	1.0920	2.2815	2.2815	3.7291	3.9730	1.7817		2.5154	2.9555	2.5154	2.9555
H9	2.1936	2.1936	1.0937	2.6491	3.0756	2.5154	3.0756	2.5154		1.7817	2.7011	3.7291
H10	2.2815	2.2815	1.0920	3.1233	2.5154	2.9555	2.5154	2.9555	1.7817		3.7291	3.9730
H11	2.1936	2.1936	2.6491	1.0937	3.0756	2.5154	3.0756	2.5154	2.7011	3.7291		1.7817
H12	2.2815	2.2815	3.1233	1.0920	2.5154	2.9555	2.5154	2.9555	3.7291	3.9730	1.7817

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C3	C2	87.965	C1	C3	H9	110.842
C1	C3	H10	118.265	C1	C4	C2	87.965
C1	C4	H11	110.842	C1	C4	H12	118.265
C2	C3	H9	110.842	C2	C3	H10	118.265
C2	C4	H11	110.842	C2	C4	H12	118.265
C3	C1	C4	87.965	C3	C1	H5	110.842
C3	C1	H6	118.265	C3	C2	C4	87.965
C3	C2	H7	110.842	C3	C2	H8	118.265
C4	C1	H5	110.842	C4	C1	H6	118.265
C4	C2	H7	110.842	C4	C2	H8	118.265
H5	C1	H6	109.209	H7	C2	H8	109.209
H9	C3	H10	109.209	H11	C4	H12	109.209

All results from a given calculation for C₄H₈ (cyclobutane)

using model chemistry: MP3=FULL/6-311G**

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/6-311G**

States and conformations

All results from a given calculation for C₄H₈ (cyclobutane)