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	hartrees
Energy at 0K	-155.468504
Energy at 298.15K	-155.474702
HF Energy	-154.897660
Nuclear repulsion energy	112.697729

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A₁	3224	3079
2	A₁	3068	2929
3	A₁	1623	1550
4	A₁	1538	1469
5	A₁	1249	1192
6	A₁	1153	1101
7	A₁	1023	977
8	A₁	912	871
9	A₂	3108	2968
10	A₂	1191	1138
11	A₂	1055	1008
12	A₂	883	843
13	A₂	297	284
14	B₁	3122	2981
15	B₁	1118	1067
16	B₁	886	846
17	B₁	646	617
18	B₂	3193	3049
19	B₂	3062	2924
20	B₂	1518	1449
21	B₂	1343	1282
22	B₂	1254	1197
23	B₂	922	880
24	B₂	857	818

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	-0.676	0.816
C2	0.000	0.676	0.816
C3	0.000	-0.786	-0.701
C4	0.000	0.786	-0.701
H5	0.000	-1.429	1.604
H6	0.000	1.429	1.604
H7	-0.893	-1.246	-1.148
H8	0.893	1.246	-1.148
H9	0.893	-1.246	-1.148
H10	-0.893	1.246	-1.148

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10
C1		1.3515	1.5213	2.1069	1.0899	2.2473	2.2319	2.8895	2.2319	2.8895
C2	1.3515		2.1069	1.5213	2.2473	1.0899	2.8895	2.2319	2.8895	2.2319
C3	1.5213	2.1069		1.5723	2.3930	3.1968	1.0991	2.2642	1.0991	2.2642
C4	2.1069	1.5213	1.5723		3.1968	2.3930	2.2642	1.0991	2.2642	1.0991
H5	1.0899	2.2473	2.3930	3.1968		2.8579	2.8991	3.9405	2.8991	3.9405
H6	2.2473	1.0899	3.1968	2.3930	2.8579		3.9405	2.8991	3.9405	2.8991
H7	2.2319	2.8895	1.0991	2.2642	2.8991	3.9405		3.0655	1.7850	2.4922
H8	2.8895	2.2319	2.2642	1.0991	3.9405	2.8991	3.0655		2.4922	1.7850
H9	2.2319	2.8895	1.0991	2.2642	2.8991	3.9405	1.7850	2.4922		3.0655
H10	2.8895	2.2319	2.2642	1.0991	3.9405	2.8991	2.4922	1.7850	3.0655

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	94.163	C1	C2	H6	133.717
C1	C3	C4	85.837	C1	C3	H7	115.862
C1	C3	H9	115.862	C2	C1	C3	94.163
C2	C1	H5	133.717	C2	C4	C3	85.837
C2	C4	H8	115.862	C2	C4	H10	115.862
C3	C1	H5	132.121	C3	C4	H8	114.735
C3	C4	H10	114.735	C4	C2	H6	132.121
C4	C3	H7	114.735	C4	C3	H9	114.735
H7	C3	H9	108.584	H8	C4	H10	108.584

All results from a given calculation for C₄H₆ (Cyclobutene)

using model chemistry: MP4/6-31G*

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 (Cyclobutene)

using model chemistry: MP4/6-31G*

States and conformations

All results from a given calculation for C₄H₆ (Cyclobutene)