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	hartrees
Energy at 0K	-156.636648
Energy at 298.15K	-156.645936
HF Energy	-156.123143
Nuclear repulsion energy	127.456187

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3185	2947	0.00
2	A₁	3153	2917	0.00
3	A₁	1604	1485	0.00
4	A₁	1238	1146	0.00
5	A₁	1071	991	0.00
6	A₁	231	214	0.00
7	A₂	1311	1213	0.00
8	A₂	1004	929	0.00
9	B₁	1323	1224	0.00
10	B₁	1224	1133	0.00
11	B₁	991	917	0.00
12	B₂	3216	2976	118.44
13	B₂	3141	2906	12.72
14	B₂	1564	1447	5.12
15	B₂	937	867	0.01
16	B₂	655	606	2.41
17	E	3198	2959	24.39
17	E	3198	2959	24.39
18	E	3144	2909	79.69
18	E	3144	2909	79.69
19	E	1560	1443	1.29
19	E	1560	1443	1.29
20	E	1361	1259	2.74
20	E	1361	1259	2.74
21	E	1307	1210	0.20
21	E	1307	1210	0.20
22	E	961	890	3.70
22	E	961	890	3.70
23	E	789	730	0.33
23	E	789	730	0.33

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	1.076	0.136
C2	0.000	-1.076	0.136
C3	-1.076	0.000	-0.136
C4	1.076	0.000	-0.136
H5	0.000	1.380	1.183
H6	0.000	1.969	-0.486
H7	0.000	-1.380	1.183
H8	0.000	-1.969	-0.486
H9	-1.380	0.000	-1.183
H10	-1.969	0.000	0.486
H11	1.380	0.000	-1.183
H12	1.969	0.000	0.486

	C1	C2	C3	C4	H5	H6	H7	H8	H9	H10	H11	H12
C1		2.1518	1.5458	1.5458	1.0897	1.0885	2.6695	3.1080	2.1914	2.2710	2.1914	2.2710
C2	2.1518		1.5458	1.5458	2.6695	3.1080	1.0897	1.0885	2.1914	2.2710	2.1914	2.2710
C3	1.5458	1.5458		2.1518	2.1914	2.2710	2.1914	2.2710	1.0897	1.0885	2.6695	3.1080
C4	1.5458	1.5458	2.1518		2.1914	2.2710	2.1914	2.2710	2.6695	3.1080	1.0897	1.0885
H5	1.0897	2.6695	2.1914	2.1914		1.7695	2.7599	3.7417	3.0667	2.5036	3.0667	2.5036
H6	1.0885	3.1080	2.2710	2.2710	1.7695		3.7417	3.9384	2.5036	2.9494	2.5036	2.9494
H7	2.6695	1.0897	2.1914	2.1914	2.7599	3.7417		1.7695	3.0667	2.5036	3.0667	2.5036
H8	3.1080	1.0885	2.2710	2.2710	3.7417	3.9384	1.7695		2.5036	2.9494	2.5036	2.9494
H9	2.1914	2.1914	1.0897	2.6695	3.0667	2.5036	3.0667	2.5036		1.7695	2.7599	3.7417
H10	2.2710	2.2710	1.0885	3.1080	2.5036	2.9494	2.5036	2.9494	1.7695		3.7417	3.9384
H11	2.1914	2.1914	2.6695	1.0897	3.0667	2.5036	3.0667	2.5036	2.7599	3.7417		1.7695
H12	2.2710	2.2710	3.1080	1.0885	2.5036	2.9494	2.5036	2.9494	3.7417	3.9384	1.7695

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C3	C2	88.216	C1	C3	H9	111.322
C1	C3	H10	118.057	C1	C4	C2	88.216
C1	C4	H11	111.322	C1	C4	H12	118.057
C2	C3	H9	111.322	C2	C3	H10	118.057
C2	C4	H11	111.322	C2	C4	H12	118.057
C3	C1	C4	88.216	C3	C1	H5	111.322
C3	C1	H6	118.057	C3	C2	C4	88.216
C3	C2	H7	111.322	C3	C2	H8	118.057
C4	C1	H5	111.322	C4	C1	H6	118.057
C4	C2	H7	111.322	C4	C2	H8	118.057
H5	C1	H6	108.651	H7	C2	H8	108.651
H9	C3	H10	108.651	H11	C4	H12	108.651

All results from a given calculation for C₄H₈ (cyclobutane)

using model chemistry: CISD/6-311G*

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 C4H8 (cyclobutane)

using model chemistry: CISD/6-311G*

States and conformations

All results from a given calculation for C₄H₈ (cyclobutane)