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	hartrees
Energy at 0K	-285.360962
Energy at 298.15K	-285.370380
HF Energy	-284.787769
Nuclear repulsion energy	234.064262

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3649	3522	42.15
2	A	3143	3034	45.18
3	A	3128	3020	10.85
4	A	3104	2996	30.40
5	A	3066	2959	26.68
6	A	3057	2951	23.91
7	A	3031	2926	71.63
8	A	1671	1613	383.62
9	A	1564	1509	3.92
10	A	1535	1481	8.00
11	A	1515	1462	6.73
12	A	1454	1404	9.62
13	A	1394	1346	5.16
14	A	1367	1320	1.27
15	A	1341	1294	4.79
16	A	1287	1243	149.65
17	A	1259	1215	31.44
18	A	1237	1194	2.74
19	A	1206	1164	3.20
20	A	1129	1090	1.74
21	A	1085	1048	14.56
22	A	1012	977	21.91
23	A	938	905	1.99
24	A	920	888	2.71
25	A	877	846	4.67
26	A	824	796	3.36
27	A	690	666	4.53
28	A	650	627	116.25
29	A	608	587	50.09
30	A	518	500	29.46
31	A	448	432	9.30
32	A	182	176	1.35
33	A	133	129	1.33

Atom	x (Å)	y (Å)	z (Å)
N1	0.082	-1.118	-0.035
C2	0.918	0.000	0.003
C3	0.001	1.246	0.134
C4	-1.442	0.717	-0.176
C5	-1.372	-0.834	0.107
O6	2.186	-0.021	-0.051
H7	0.469	-2.058	-0.065
H8	0.087	1.642	1.163
H9	0.337	2.031	-0.564
H10	-2.211	1.201	0.450
H11	-1.694	0.891	-1.237
H12	-1.728	-1.079	1.126
H13	-1.958	-1.416	-0.625

	N1	C2	C3	C4	C5	O6	H7	H8	H9	H10	H11	H12	H13
N1		1.3964	2.3717	2.3899	1.4886	2.3731	1.0167	3.0088	3.2027	3.2974	2.9382	2.1514	2.1444
C2	1.3964		1.5525	2.4734	2.4395	1.2696	2.1074	2.1752	2.1868	3.3814	3.0251	3.0705	3.2664
C3	2.3717	1.5525		1.5688	2.4930	2.5324	3.3429	1.1057	1.1022	2.2355	2.2089	3.0628	3.3912
C4	2.3899	2.4734	1.5688		1.5782	3.7052	3.3712	2.2334	2.2453	1.1029	1.1041	2.2363	2.2394
C5	1.4886	2.4395	2.4930	1.5782		3.6536	2.2173	3.0618	3.4024	2.2277	2.2103	1.1068	1.1032
O6	2.3731	1.2696	2.5324	3.7052	3.6536		2.6645	2.9400	2.8093	4.5915	4.1584	4.2222	4.4102
H7	1.0167	2.1074	3.3429	3.3712	2.2173	2.6645		3.9167	4.1208	4.2506	3.8399	2.6842	2.5721
H8	3.0088	2.1752	1.1057	2.2334	3.0618	2.9400	3.9167		1.7877	2.4467	3.0814	3.2707	4.0898
H9	3.2027	2.1868	1.1022	2.2453	3.4024	2.8093	4.1208	1.7877		2.8649	2.4236	4.0972	4.1406
H10	3.2974	3.3814	2.2355	1.1029	2.2277	4.5915	4.2506	2.4467	2.8649		1.7912	2.4264	2.8398
H11	2.9382	3.0251	2.2089	1.1041	2.2103	4.1584	3.8399	3.0814	2.4236	1.7912		3.0764	2.4009
H12	2.1514	3.0705	3.0628	2.2363	1.1068	4.2222	2.6842	3.2707	4.0972	2.4264	3.0764		1.7979
H13	2.1444	3.2664	3.3912	2.2394	1.1032	4.4102	2.5721	4.0898	4.1406	2.8398	2.4009	1.7979

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
N1	C2	C3	106.957	N1	C2	O6	125.705
N1	C5	C4	102.348	N1	C5	H12	111.119
N1	C5	H13	110.777	C2	N1	C5	115.427
C2	N1	H7	120.884	C2	C3	C4	104.825
C2	C3	H8	108.668	C2	C3	H9	109.755
C3	C2	O6	127.335	C3	C4	C5	104.777
C3	C4	H10	112.423	C3	C4	H11	110.248
C4	C3	H8	112.085	C4	C3	H9	113.257
C4	C5	H12	111.587	C4	C5	H13	112.044
C5	N1	H7	123.413	C5	C4	H10	111.138
C5	C4	H11	109.714	H8	C3	H9	108.136
H10	C4	H11	108.501	H12	C5	H13	108.880

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

using model chemistry: MP2/SDD

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/SDD

States and conformations

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