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	hartrees
Energy at 0K	-155.375154
Energy at 298.15K	-155.381499
HF Energy	-154.899327
Nuclear repulsion energy	113.539339

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3327	3080	21.33
2	A₁	3162	2927	42.82
3	A₁	1734	1605	0.56
4	A₁	1589	1471	0.01
5	A₁	1308	1211	1.01
6	A₁	1196	1107	0.06
7	A₁	1057	979	0.03
8	A₁	951	881	1.42
9	A₂	3198	2960	0.00
10	A₂	1239	1147	0.00
11	A₂	1101	1019	0.00
12	A₂	970	898	0.00
13	A₂	322	298	0.00
14	B₁	3212	2974	60.63
15	B₁	1162	1076	5.90
16	B₁	920	851	15.44
17	B₁	688	637	46.26
18	B₂	3294	3050	14.28
19	B₂	3154	2920	44.49
20	B₂	1564	1448	0.00
21	B₂	1402	1298	13.02
22	B₂	1309	1212	3.10
23	B₂	954	883	12.47
24	B₂	894	827	1.29

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	-0.667	0.812
C2	0.000	0.667	0.812
C3	0.000	-0.781	-0.698
C4	0.000	0.781	-0.698
H5	0.000	-1.413	1.594
H6	0.000	1.413	1.594
H7	-0.886	-1.239	-1.140
H8	0.886	1.239	-1.140
H9	0.886	-1.239	-1.140
H10	-0.886	1.239	-1.140

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10
C1		1.3332	1.5139	2.0915	1.0817	2.2223	2.2186	2.8682	2.2186	2.8682
C2	1.3332		2.0915	1.5139	2.2223	1.0817	2.8682	2.2186	2.8682	2.2186
C3	1.5139	2.0915		1.5621	2.3777	3.1732	1.0912	2.2500	1.0912	2.2500
C4	2.0915	1.5139	1.5621		3.1732	2.3777	2.2500	1.0912	2.2500	1.0912
H5	1.0817	2.2223	2.3777	3.1732		2.8267	2.8795	3.9112	2.8795	3.9112
H6	2.2223	1.0817	3.1732	2.3777	2.8267		3.9112	2.8795	3.9112	2.8795
H7	2.2186	2.8682	1.0912	2.2500	2.8795	3.9112		3.0469	1.7724	2.4784
H8	2.8682	2.2186	2.2500	1.0912	3.9112	2.8795	3.0469		2.4784	1.7724
H9	2.2186	2.8682	1.0912	2.2500	2.8795	3.9112	1.7724	2.4784		3.0469
H10	2.8682	2.2186	2.2500	1.0912	3.9112	2.8795	2.4784	1.7724	3.0469

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	94.336	C1	C2	H6	133.656
C1	C3	C4	85.664	C1	C3	H7	115.833
C1	C3	H9	115.833	C2	C1	C3	94.336
C2	C1	H5	133.656	C2	C4	C3	85.664
C2	C4	H8	115.833	C2	C4	H10	115.833
C3	C1	H5	132.008	C3	C4	H8	114.825
C3	C4	H10	114.825	C4	C2	H6	132.008
C4	C3	H7	114.825	C4	C3	H9	114.825
H7	C3	H9	108.610	H8	C4	H10	108.610

All results from a given calculation for C₄H₆ (Cyclobutene)

using model chemistry: CISD/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: CISD/6-31G*

States and conformations

All results from a given calculation for C₄H₆ (Cyclobutene)