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	hartrees
Energy at 0K	-285.810959
Energy at 298.15K	-285.820493
HF Energy	-284.890734
Nuclear repulsion energy	240.105710

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3721	3477	43.34
2	A	3235	3023	16.90
3	A	3225	3013	11.06
4	A	3189	2980	30.42
5	A	3160	2953	16.43
6	A	3147	2941	10.05
7	A	3102	2898	59.79
8	A	1850	1729	366.78
9	A	1592	1488	4.12
10	A	1554	1452	5.56
11	A	1525	1425	4.26
12	A	1483	1386	46.31
13	A	1403	1311	7.66
14	A	1385	1294	24.24
15	A	1351	1262	39.49
16	A	1300	1214	57.57
17	A	1282	1198	16.39
18	A	1245	1163	2.05
19	A	1218	1138	4.97
20	A	1121	1048	1.88
21	A	1113	1040	12.97
22	A	1035	967	11.34
23	A	957	894	0.68
24	A	937	876	1.94
25	A	921	860	4.68
26	A	841	786	4.51
27	A	704	657	12.04
28	A	645	603	18.28
29	A	567	530	55.32
30	A	506	473	68.18
31	A	470	439	9.03
32	A	220	206	5.43
33	A	146	136	1.94

Atom	x (Å)	y (Å)	z (Å)
N1	0.074	-1.092	-0.089
C2	0.899	0.002	-0.008
C3	-0.013	1.211	0.158
C4	-1.397	0.687	-0.218
C5	-1.325	-0.800	0.153
O6	2.123	-0.012	-0.045
H7	0.472	-2.015	-0.020
H8	0.031	1.516	1.205
H9	0.339	2.042	-0.446
H10	-2.213	1.199	0.286
H11	-1.547	0.779	-1.293
H12	-1.599	-0.959	1.200
H13	-1.972	-1.418	-0.467

	N1	C2	C3	C4	C5	O6	H7	H8	H9	H10	H11	H12	H13
N1		1.3727	2.3184	2.3125	1.4504	2.3163	1.0072	2.9117	3.1663	3.2591	2.7534	2.1169	2.1066
C2	1.3727		1.5240	2.4053	2.3701	1.2244	2.0618	2.1253	2.1610	3.3472	2.8706	2.9371	3.2361
C3	2.3184	1.5240		1.5267	2.4012	2.4700	3.2676	1.0915	1.0863	2.2035	2.1554	2.8834	3.3379
C4	2.3125	2.4053	1.5267		1.5342	3.5928	3.2916	2.1797	2.2143	1.0872	1.0888	2.1828	2.1966
C5	1.4504	2.3701	2.4012	1.5342		3.5427	2.1769	2.8822	3.3479	2.1907	2.1521	1.0942	1.0886
O6	2.3163	1.2244	2.4700	3.5928	3.5427		2.5957	2.8765	2.7503	4.5140	3.9565	4.0378	4.3503
H7	1.0072	2.0618	3.2676	3.2916	2.1769	2.5957		3.7635	4.0822	4.1992	3.6748	2.6261	2.5556
H8	2.9117	2.1253	1.0915	2.1797	2.8822	2.8765	3.7635		1.7605	2.4454	3.0453	2.9636	3.9261
H9	3.1663	2.1610	1.0863	2.2143	3.3479	2.7503	4.0822	1.7605		2.7859	2.4236	3.9345	4.1617
H10	3.2591	3.3472	2.2035	1.0872	2.1907	4.5140	4.1992	2.4454	2.7859		1.7639	2.4230	2.7336
H11	2.7534	2.8706	2.1554	1.0888	2.1521	3.9565	3.6748	3.0453	2.4236	1.7639		3.0398	2.3853
H12	2.1169	2.9371	2.8834	2.1828	1.0942	4.0378	2.6261	2.9636	3.9345	2.4230	3.0398		1.7688
H13	2.1066	3.2361	3.3379	2.1966	1.0886	4.3503	2.5556	3.9261	4.1617	2.7336	2.3853	1.7688

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
N1	C2	C3	106.218	N1	C2	O6	126.128
N1	C5	C4	101.541	N1	C5	H12	111.827
N1	C5	H13	111.337	C2	N1	C5	114.154
C2	N1	H7	119.281	C2	C3	C4	104.084
C2	C3	H8	107.549	C2	C3	H9	110.642
C3	C2	O6	127.648	C3	C4	C5	103.347
C3	C4	H10	113.854	C3	C4	H11	109.856
C4	C3	H8	111.643	C4	C3	H9	114.819
C4	C5	H12	111.194	C4	C5	H13	112.649
C5	N1	H7	123.689	C5	C4	H10	112.259
C5	C4	H11	109.086	H8	C3	H9	107.875
H10	C4	H11	108.309	H12	C5	H13	108.255

All results from a given calculation for C₄H₇NO (2-Pyrrolidinone)

using model chemistry: MP2=FULL/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 C4H7NO (2-Pyrrolidinone)

using model chemistry: MP2=FULL/6-31G**

States and conformations

All results from a given calculation for C₄H₇NO (2-Pyrrolidinone)