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	hartrees
Energy at 0K	-155.519724
Energy at 298.15K	-155.525925
HF Energy	-154.885411
Nuclear repulsion energy	114.968785

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A₁	3272	3197
2	A₁	3189	3115
3	A₁	3087	3016
4	A₁	1568	1532
5	A₁	1313	1283
6	A₁	1127	1101
7	A₁	874	854
8	A₁	667	651
9	A₁	419	410
10	A₂	1213	1185
11	A₂	1110	1084
12	A₂	947	925
13	A₂	880	859
14	B₁	3261	3185
15	B₁	1195	1168
16	B₁	1160	1133
17	B₁	1019	996
18	B₁	769	751
19	B₂	3190	3117
20	B₂	3091	3020
21	B₂	1532	1496
22	B₂	1353	1322
23	B₂	1131	1105
24	B₂	972	950

Atom	x (Å)	y (Å)	z (Å)
C1	0.763	0.000	-0.317
C2	-0.763	0.000	-0.317
C3	0.000	1.146	0.316
C4	0.000	-1.146	0.316
H5	1.428	0.000	-1.180
H6	-1.428	0.000	-1.180
H7	0.000	2.102	-0.225
H8	0.000	-2.102	-0.225
H9	0.000	1.237	1.414
H10	0.000	-1.237	1.414

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10
C1		1.5258	1.5156	1.5156	1.0897	2.3551	2.2381	2.2381	2.2607	2.2607
C2	1.5258		1.5156	1.5156	2.3551	1.0897	2.2381	2.2381	2.2607	2.2607
C3	1.5156	1.5156		2.2929	2.3648	2.3648	1.0981	3.2932	1.1022	2.6245
C4	1.5156	1.5156	2.2929		2.3648	2.3648	3.2932	1.0981	2.6245	1.1022
H5	1.0897	2.3551	2.3648	2.3648		2.8570	2.7150	2.7150	3.2096	3.2096
H6	2.3551	1.0897	2.3648	2.3648	2.8570		2.7150	2.7150	3.2096	3.2096
H7	2.2381	2.2381	1.0981	3.2932	2.7150	2.7150		4.2041	1.8535	3.7199
H8	2.2381	2.2381	3.2932	1.0981	2.7150	2.7150	4.2041		3.7199	1.8535
H9	2.2607	2.2607	1.1022	2.6245	3.2096	3.2096	1.8535	3.7199		2.4744
H10	2.2607	2.2607	2.6245	1.1022	3.2096	3.2096	3.7199	1.8535	2.4744

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	59.777	C1	C2	C4	59.777
C1	C2	H6	127.649	C1	C3	C2	60.445
C1	C3	H7	116.907	C1	C3	H9	118.592
C1	C4	C2	60.445	C1	C4	H8	116.907
C1	C4	H10	118.592	C2	C1	C3	59.777
C2	C1	C4	59.777	C2	C1	H5	127.649
C2	C3	H7	116.907	C2	C3	H9	118.592
C2	C4	H8	116.907	C2	C4	H10	118.592
C3	C1	C4	98.297	C3	C1	H5	129.657
C3	C2	C4	98.297	C3	C2	H6	129.657
C4	C1	H5	129.657	C4	C2	H6	129.657
H7	C3	H9	114.786	H8	C4	H10	114.786

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

using model chemistry: MP4/aug-cc-pVDZ

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: MP4/aug-cc-pVDZ

States and conformations

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