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	hartrees
Energy at 0K	-155.675198
Energy at 298.15K	-155.681450
HF Energy	-154.953403
Nuclear repulsion energy	113.828451

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3266	3100	17.70
2	A₁	3110	2953	36.29
3	A₁	1620	1538	0.64
4	A₁	1507	1431	0.42
5	A₁	1223	1161	2.32
6	A₁	1156	1097	0.06
7	A₁	1024	972	0.00
8	A₁	920	873	1.12
9	A₂	3146	2987	0.00
10	A₂	1185	1125	0.00
11	A₂	1033	981	0.00
12	A₂	944	897	0.00
13	A₂	301	286	0.00
14	B₁	3160	3000	33.93
15	B₁	1115	1058	6.11
16	B₁	884	840	18.40
17	B₁	653	620	41.32
18	B₂	3227	3064	11.26
19	B₂	3104	2947	31.49
20	B₂	1484	1409	1.18
21	B₂	1337	1270	11.20
22	B₂	1244	1181	3.49
23	B₂	926	879	13.51
24	B₂	856	813	0.59

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.670	0.808
C2	0.000	-0.670	0.808
C3	0.000	0.779	-0.695
C4	0.000	-0.779	-0.695
H5	0.000	1.410	1.588
H6	0.000	-1.410	1.588
H7	0.884	1.231	-1.134
H8	-0.884	-1.231	-1.134
H9	-0.884	1.231	-1.134
H10	0.884	-1.231	-1.134

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10
C1		1.3398	1.5063	2.0872	1.0758	2.2218	2.2059	2.8574	2.2059	2.8574
C2	1.3398		2.0872	1.5063	2.2218	1.0758	2.8574	2.2059	2.8574	2.2059
C3	1.5063	2.0872		1.5582	2.3685	3.1630	1.0855	2.2394	1.0855	2.2394
C4	2.0872	1.5063	1.5582		3.1630	2.3685	2.2394	1.0855	2.2394	1.0855
H5	1.0758	2.2218	2.3685	3.1630		2.8205	2.8676	3.8946	2.8676	3.8946
H6	2.2218	1.0758	3.1630	2.3685	2.8205		3.8946	2.8676	3.8946	2.8676
H7	2.2059	2.8574	1.0855	2.2394	2.8676	3.8946		3.0309	1.7675	2.4622
H8	2.8574	2.2059	2.2394	1.0855	3.8946	2.8676	3.0309		2.4622	1.7675
H9	2.2059	2.8574	1.0855	2.2394	2.8676	3.8946	1.7675	2.4622		3.0309
H10	2.8574	2.2059	2.2394	1.0855	3.8946	2.8676	2.4622	1.7675	3.0309

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	94.157	C1	C2	H6	133.484
C1	C3	C4	85.843	C1	C3	H7	115.710
C1	C3	H9	115.710	C2	C1	C3	94.157
C2	C1	H5	133.484	C2	C4	C3	85.843
C2	C4	H8	115.710	C2	C4	H10	115.710
C3	C1	H5	132.359	C3	C4	H8	114.608
C3	C4	H10	114.608	C4	C2	H6	132.359
C4	C3	H7	114.608	C4	C3	H9	114.608
H7	C3	H9	109.005	H8	C4	H10	109.005

All results from a given calculation for C₄H₆ (Cyclobutene)

using model chemistry: MP2=FULL/cc-pVTZ

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=FULL/cc-pVTZ

States and conformations

All results from a given calculation for C₄H₆ (Cyclobutene)