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	hartrees
Energy at 0K	-285.892921
Energy at 298.15K	-285.902439
HF Energy	-284.949613
Nuclear repulsion energy	239.863725

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3666	3483	38.61
2	A	3180	3022	18.29
3	A	3169	3011	13.27
4	A	3138	2982	31.03
5	A	3106	2951	18.10
6	A	3093	2939	11.20
7	A	3049	2897	61.68
8	A	1833	1742	389.71
9	A	1554	1477	3.17
10	A	1515	1439	8.58
11	A	1484	1411	4.62
12	A	1458	1386	38.72
13	A	1381	1312	8.60
14	A	1362	1294	18.23
15	A	1323	1257	45.62
16	A	1278	1215	37.34
17	A	1262	1199	37.17
18	A	1223	1162	2.11
19	A	1202	1143	5.60
20	A	1105	1050	9.79
21	A	1099	1044	6.46
22	A	1022	971	12.25
23	A	947	900	0.55
24	A	925	879	2.44
25	A	908	862	5.03
26	A	830	789	4.68
27	A	700	665	13.23
28	A	637	606	13.11
29	A	561	534	43.65
30	A	494	469	66.96
31	A	468	445	13.09
32	A	225	213	5.20
33	A	145	138	2.19

Atom	x (Å)	y (Å)	z (Å)
N1	0.077	-1.095	-0.104
C2	0.903	0.002	-0.010
C3	-0.015	1.214	0.156
C4	-1.402	0.686	-0.221
C5	-1.321	-0.802	0.163
O6	2.119	-0.008	-0.039
H7	0.477	-2.018	-0.017
H8	0.029	1.512	1.210
H9	0.340	2.050	-0.449
H10	-2.223	1.200	0.284
H11	-1.549	0.768	-1.302
H12	-1.573	-0.948	1.223
H13	-1.981	-1.429	-0.442

	N1	C2	C3	C4	C5	O6	H7	H8	H9	H10	H11	H12	H13
N1		1.3759	2.3247	2.3176	1.4536	2.3131	1.0097	2.9200	3.1738	3.2718	2.7471	2.1230	2.1129
C2	1.3759		1.5293	2.4137	2.3715	1.2157	2.0639	2.1297	2.1687	3.3604	2.8752	2.9250	3.2487
C3	2.3247	1.5293		1.5314	2.4020	2.4664	3.2731	1.0966	1.0911	2.2115	2.1627	2.8706	3.3477
C4	2.3176	2.4137	1.5314		1.5386	3.5930	3.2986	2.1862	2.2238	1.0921	1.0939	2.1872	2.2034
C5	1.4536	2.3715	2.4020	1.5386		3.5359	2.1782	2.8767	3.3562	2.1988	2.1592	1.0992	1.0932
O6	2.3131	1.2157	2.4664	3.5930	3.5359		2.5944	2.8707	2.7511	4.5177	3.9556	4.0130	4.3577
H7	1.0097	2.0639	3.2731	3.2986	2.1782	2.5944		3.7640	4.0923	4.2109	3.6760	2.6241	2.5637
H8	2.9200	2.1297	1.0966	2.1862	2.8767	2.8707	3.7640		1.7717	2.4545	3.0585	2.9361	3.9270
H9	3.1738	2.1687	1.0911	2.2238	3.3562	2.7511	4.0923	1.7717		2.7971	2.4364	3.9295	4.1815
H10	3.2718	3.3604	2.2115	1.0921	2.1988	4.5177	4.2109	2.4545	2.7971		1.7765	2.4326	2.7376
H11	2.7471	2.8752	2.1627	1.0939	2.1592	3.9556	3.6760	3.0585	2.4364	1.7765		3.0529	2.3979
H12	2.1230	2.9250	2.8706	2.1872	1.0992	4.0130	2.6241	2.9361	3.9295	2.4326	3.0529		1.7806
H13	2.1129	3.2487	3.3477	2.2034	1.0932	4.3577	2.5637	3.9270	4.1815	2.7376	2.3979	1.7806

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
N1	C2	C3	106.174	N1	C2	O6	126.274
N1	C5	C4	101.491	N1	C5	H12	111.787
N1	C5	H13	111.340	C2	N1	C5	113.864
C2	N1	H7	119.002	C2	C3	C4	104.110
C2	C3	H8	107.245	C2	C3	H9	110.594
C3	C2	O6	127.547	C3	C4	C5	102.962
C3	C4	H10	113.853	C3	C4	H11	109.812
C4	C3	H8	111.509	C4	C3	H9	114.946
C4	C5	H12	110.930	C4	C5	H13	112.596
C5	N1	H7	123.312	C5	C4	H10	112.289
C5	C4	H11	109.042	H8	C3	H9	108.159
H10	C4	H11	108.712	H12	C5	H13	108.621

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

using model chemistry: MP2/6-311G**

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 C4H7NO (2-Pyrrolidinone)

using model chemistry: MP2/6-311G**

States and conformations

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