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	hartrees
Energy at 0K	-32.437263
Energy at 298.15K	-32.446163
HF Energy	-31.996175
Nuclear repulsion energy	90.943013

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3161	3085	38.57
2	A'	3068	2995	79.05
3	A'	3029	2956	40.85
4	A'	2994	2922	46.44
5	A'	2968	2897	19.05
6	A'	1600	1562	2.08
7	A'	1531	1494	2.34
8	A'	1508	1472	1.34
9	A'	1349	1317	0.74
10	A'	1232	1202	2.19
11	A'	1133	1106	0.11
12	A'	1093	1067	9.13
13	A'	966	943	2.42
14	A'	888	866	0.75
15	A'	814	794	0.31
16	A'	704	688	40.65
17	A'	615	600	19.13
18	A'	129	126	0.18
19	A"	3128	3053	12.60
20	A"	3031	2959	14.99
21	A"	2970	2898	89.93
22	A"	1520	1484	2.55
23	A"	1378	1345	0.89
24	A"	1336	1304	0.76
25	A"	1326	1294	1.33
26	A"	1218	1188	0.00
27	A"	1154	1126	0.68
28	A"	1049	1024	0.32
29	A"	936	913	2.07
30	A"	898	877	7.17
31	A"	886	865	0.21
32	A"	766	748	0.36
33	A"	378	369	0.02

Atom	x (Å)	y (Å)	z (Å)
C1	0.252	-1.212	0.000
C2	-0.067	-0.312	1.266
C3	-0.067	-0.312	-1.266
C4	-0.067	1.120	0.686
C5	-0.067	1.120	-0.686
H6	1.322	-1.485	0.000
H7	-0.342	-2.142	0.000
H8	-1.055	-0.562	1.699
H9	-1.055	-0.562	-1.699
H10	-0.088	2.015	1.314
H11	-0.088	2.015	-1.314
H12	0.687	-0.444	-2.063
H13	0.687	-0.444	2.063

	C1	C2	C3	C4	C5	H6	H7	H8	H9	H10	H11	H12	H13
C1		1.5859	1.5859	2.4518	2.4518	1.1042	1.1033	2.2401	2.2401	3.5013	3.5013	2.2437	2.2437
C2	1.5859		2.5325	1.5453	2.4213	2.2155	2.2418	1.1074	3.1354	2.3282	3.4749	3.4158	1.1046
C3	1.5859	2.5325		2.4213	1.5453	2.2155	2.2418	3.1354	1.1074	3.4749	2.3282	1.1046	3.4158
C4	2.4518	1.5453	2.4213		1.3721	3.0308	3.3443	2.1982	3.0812	1.0938	2.1913	3.2509	2.2154
C5	2.4518	2.4213	1.5453	1.3721		3.0308	3.3443	3.0812	2.1982	2.1913	1.0938	2.2154	3.2509
H6	1.1042	2.2155	2.2155	3.0308	3.0308		1.7892	3.0643	3.0643	3.9958	3.9958	2.3963	2.3963
H7	1.1033	2.2418	2.2418	3.3443	3.3443	1.7892		2.4267	2.4267	4.3671	4.3671	2.8631	2.8631
H8	2.2401	1.1074	3.1354	2.1982	3.0812	3.0643	2.4267		3.3975	2.7799	4.0811	4.1471	1.7840
H9	2.2401	3.1354	1.1074	3.0812	2.1982	3.0643	2.4267	3.3975		4.0811	2.7799	1.7840	4.1471
H10	3.5013	2.3282	3.4749	1.0938	2.1913	3.9958	4.3671	2.7799	4.0811		2.6276	4.2483	2.6848
H11	3.5013	3.4749	2.3282	2.1913	1.0938	3.9958	4.3671	4.0811	2.7799	2.6276		2.6848	4.2483
H12	2.2437	3.4158	1.1046	3.2509	2.2154	2.3963	2.8631	4.1471	1.7840	4.2483	2.6848		4.1253
H13	2.2437	1.1046	3.4158	2.2154	3.2509	2.3963	2.8631	1.7840	4.1471	2.6848	4.2483	4.1253

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	103.069	C1	C2	H8	111.310
C1	C2	H13	111.762	C1	C3	C5	103.069
C1	C3	H9	111.310	C1	C3	H12	111.762
C2	C1	C3	105.961	C2	C1	H6	109.586
C2	C1	H7	111.690	C2	C4	C5	112.053
C2	C4	H10	122.907	C3	C1	H6	109.586
C3	C1	H7	111.690	C3	C5	C4	112.053
C3	C5	H11	122.907	C4	C2	H8	110.849
C4	C2	H13	112.387	C4	C5	H11	125.026
C5	C3	H9	110.849	C5	C3	H12	112.387
C5	C4	H10	125.026	H6	C1	H7	108.301
H8	C2	H13	107.510	H9	C3	H12	107.510

All results from a given calculation for C₅H₈ (Cyclopentene)

using model chemistry: MP2/CEP-121G

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 C5H8 (Cyclopentene)

using model chemistry: MP2/CEP-121G

States and conformations

All results from a given calculation for C₅H₈ (Cyclopentene)