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	hartrees
Energy at 0K	-153.220431
Energy at 298.15K	-153.226785
HF Energy	-152.997064
Nuclear repulsion energy	114.511906

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3582	3124	0.46
2	A₁	3573	3115	9.25
3	A₁	3415	2978	1.59
4	A₁	1708	1489	0.46
5	A₁	1419	1237	0.21
6	A₁	1200	1046	0.33
7	A₁	990	863	5.64
8	A₁	825	719	4.49
9	A₁	483	421	0.86
10	A₂	1311	1143	0.00
11	A₂	1233	1075	0.00
12	A₂	1029	897	0.00
13	A₂	976	851	0.00
14	B₁	3556	3101	12.24
15	B₁	1344	1172	9.72
16	B₁	1254	1093	0.37
17	B₁	1113	970	0.00
18	B₁	889	775	17.20
19	B₂	3574	3116	0.20
20	B₂	3420	2982	0.42
21	B₂	1672	1458	4.85
22	B₂	1476	1287	1.58
23	B₂	1171	1021	0.56
24	B₂	1020	889	2.19

Atom	x (Å)	y (Å)	z (Å)
C1	0.757	0.000	-0.351
C2	-0.757	0.000	-0.351
C3	0.000	1.136	0.332
C4	0.000	-1.136	0.332
H5	1.516	0.000	-1.140
H6	-1.516	0.000	-1.140
H7	0.000	2.109	-0.184
H8	0.000	-2.109	-0.184
H9	0.000	1.211	1.434
H10	0.000	-1.211	1.434

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10
C1		1.5146	1.5268	1.5268	1.0943	2.4060	2.2471	2.2471	2.2856	2.2856
C2	1.5146		1.5268	1.5268	2.4060	1.0943	2.2471	2.2471	2.2856	2.2856
C3	1.5268	1.5268		2.2729	2.3989	2.3989	1.1009	3.2862	1.1042	2.5928
C4	1.5268	1.5268	2.2729		2.3989	2.3989	3.2862	1.1009	2.5928	1.1042
H5	1.0943	2.4060	2.3989	2.3989		3.0314	2.7675	2.7675	3.2227	3.2227
H6	2.4060	1.0943	2.3989	2.3989	3.0314		2.7675	2.7675	3.2227	3.2227
H7	2.2471	2.2471	1.1009	3.2862	2.7675	2.7675		4.2180	1.8502	3.6928
H8	2.2471	2.2471	3.2862	1.1009	2.7675	2.7675	4.2180		3.6928	1.8502
H9	2.2856	2.2856	1.1042	2.5928	3.2227	3.2227	1.8502	3.6928		2.4213
H10	2.2856	2.2856	2.5928	1.1042	3.2227	3.2227	3.6928	1.8502	2.4213

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	60.266	C1	C2	C4	60.266
C1	C2	H6	133.871	C1	C3	C2	59.468
C1	C3	H7	116.619	C1	C3	H9	119.752
C1	C4	C2	59.468	C1	C4	H8	116.619
C1	C4	H10	119.752	C2	C1	C3	60.266
C2	C1	C4	60.266	C2	C1	H5	133.871
C2	C3	H7	116.619	C2	C3	H9	119.752
C2	C4	H8	116.619	C2	C4	H10	119.752
C3	C1	C4	96.199	C3	C1	H5	131.770
C3	C2	C4	96.199	C3	C2	H6	131.770
C4	C1	H5	131.770	C4	C2	H6	131.770
H7	C3	H9	114.081	H8	C4	H10	114.081

All results from a given calculation for C₄H₆ (Bicyclo[1.1.0]butane)

using model chemistry: MP2/STO-3G

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 C4H6 (Bicyclo[1.1.0]butane)

using model chemistry: MP2/STO-3G

States and conformations

All results from a given calculation for C₄H₆ (Bicyclo[1.1.0]butane)