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	hartrees
Energy at 0K	-155.479291
Energy at 298.15K	-155.485445
Nuclear repulsion energy	112.274164

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3239	3106	21.16
2	A₁	3082	2955	43.00
3	A₁	1589	1523	1.49
4	A₁	1478	1417	0.29
5	A₁	1199	1150	1.44
6	A₁	1139	1092	0.09
7	A₁	1006	965	0.02
8	A₁	904	867	0.93
9	A₂	3135	3006	0.00
10	A₂	1162	1115	0.00
11	A₂	1009	967	0.00
12	A₂	876	840	0.00
13	A₂	279	268	0.00
14	B₁	3148	3019	40.38
15	B₁	1089	1044	6.50
16	B₁	857	822	19.04
17	B₁	629	604	46.48
18	B₂	3207	3076	13.78
19	B₂	3076	2950	36.13
20	B₂	1454	1394	0.73
21	B₂	1311	1257	10.20
22	B₂	1212	1162	2.34
23	B₂	909	872	12.89
24	B₂	842	807	0.36

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.681	0.818
C2	0.000	-0.681	0.818
C3	0.000	0.789	-0.704
C4	0.000	-0.789	-0.704
H5	0.000	1.432	1.614
H6	0.000	-1.432	1.614
H7	0.898	1.246	-1.149
H8	-0.898	-1.246	-1.149
H9	-0.898	1.246	-1.149
H10	0.898	-1.246	-1.149

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10
C1		1.3620	1.5258	2.1158	1.0944	2.2577	2.2350	2.8966	2.2350	2.8966
C2	1.3620		2.1158	1.5258	2.2577	1.0944	2.8966	2.2350	2.8966	2.2350
C3	1.5258	2.1158		1.5774	2.4059	3.2101	1.1018	2.2684	1.1018	2.2684
C4	2.1158	1.5258	1.5774		3.2101	2.4059	2.2684	1.1018	2.2684	1.1018
H5	1.0944	2.2577	2.4059	3.2101		2.8632	2.9116	3.9515	2.9116	3.9515
H6	2.2577	1.0944	3.2101	2.4059	2.8632		3.9515	2.9116	3.9515	2.9116
H7	2.2350	2.8966	1.1018	2.2684	2.9116	3.9515		3.0723	1.7960	2.4926
H8	2.8966	2.2350	2.2684	1.1018	3.9515	2.9116	3.0723		2.4926	1.7960
H9	2.2350	2.8966	1.1018	2.2684	2.9116	3.9515	1.7960	2.4926		3.0723
H10	2.8966	2.2350	2.2684	1.1018	3.9515	2.9116	2.4926	1.7960	3.0723

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	94.048	C1	C2	H6	133.301
C1	C3	C4	85.952	C1	C3	H7	115.610
C1	C3	H9	115.610	C2	C1	C3	94.048
C2	C1	H5	133.301	C2	C4	C3	85.952
C2	C4	H8	115.610	C2	C4	H10	115.610
C3	C1	H5	132.651	C3	C4	H8	114.540
C3	C4	H10	114.540	C4	C2	H6	132.651
C4	C3	H7	114.540	C4	C3	H9	114.540
H7	C3	H9	109.189	H8	C4	H10	109.189

All results from a given calculation for C₄H₆ (Cyclobutene)

using model chemistry: MP2/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 (Cyclobutene)

using model chemistry: MP2/aug-cc-pVDZ

States and conformations

All results from a given calculation for C₄H₆ (Cyclobutene)