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	hartrees
Energy at 0K	-285.830294
Energy at 298.15K	-285.839819
HF Energy	-284.900487
Nuclear repulsion energy	239.078096

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3677	3518	34.78
2	A	3171	3033	16.17
3	A	3159	3022	18.19
4	A	3127	2991	38.46
5	A	3097	2963	16.09
6	A	3089	2956	13.90
7	A	3036	2904	65.16
8	A	1896	1814	437.67
9	A	1541	1474	4.09
10	A	1501	1436	17.46
11	A	1475	1411	40.90
12	A	1467	1404	15.65
13	A	1391	1331	13.29
14	A	1363	1304	31.63
15	A	1333	1276	45.82
16	A	1282	1226	49.51
17	A	1257	1203	3.50
18	A	1227	1174	0.99
19	A	1194	1142	6.14
20	A	1108	1060	15.35
21	A	1100	1052	0.28
22	A	1019	975	9.19
23	A	946	905	0.55
24	A	922	882	3.38
25	A	908	869	4.36
26	A	834	797	5.84
27	A	707	676	14.85
28	A	640	612	13.41
29	A	563	538	44.58
30	A	504	483	65.05
31	A	473	453	15.37
32	A	222	212	5.79
33	A	143	137	2.50

Atom	x (Å)	y (Å)	z (Å)
N1	0.082	-1.098	-0.123
C2	0.905	0.004	-0.013
C3	-0.013	1.223	0.146
C4	-1.411	0.685	-0.210
C5	-1.317	-0.810	0.167
O6	2.118	-0.008	-0.029
H7	0.487	-2.019	0.007
H8	0.045	1.542	1.204
H9	0.334	2.060	-0.478
H10	-2.234	1.200	0.312
H11	-1.581	0.773	-1.297
H12	-1.562	-0.968	1.238
H13	-1.992	-1.442	-0.435

	N1	C2	C3	C4	C5	O6	H7	H8	H9	H10	H11	H12	H13
N1		1.3797	2.3382	2.3275	1.4574	2.3107	1.0141	2.9548	3.1884	3.2917	2.7650	2.1385	2.1249
C2	1.3797		1.5348	2.4226	2.3732	1.2123	2.0653	2.1416	2.1846	3.3755	2.9023	2.9321	3.2648
C3	2.3382	1.5348		1.5389	2.4146	2.4672	3.2828	1.1065	1.1009	2.2272	2.1776	2.8965	3.3687
C4	2.3275	2.4226	1.5389		1.5449	3.6007	3.3108	2.2025	2.2383	1.1019	1.1045	2.2026	2.2161
C5	1.4574	2.3732	2.4146	1.5449		3.5319	2.1772	2.9085	3.3737	2.2142	2.1727	1.1100	1.1031
O6	2.3107	1.2123	2.4672	3.6007	3.5319		2.5886	2.8666	2.7680	4.5293	3.9874	4.0080	4.3708
H7	1.0141	2.0653	3.2828	3.3108	2.1772	2.5886		3.7823	4.1107	4.2259	3.7109	2.6114	2.5830
H8	2.9548	2.1416	1.1065	2.2025	2.9085	2.8666	3.7823		1.7833	2.4715	3.0806	2.9804	3.9665
H9	3.1884	2.1846	1.1009	2.2383	3.3737	2.7680	4.1107	1.7833		2.8219	2.4491	3.9639	4.2043
H10	3.2917	3.3755	2.2272	1.1019	2.2142	4.5293	4.2259	2.4715	2.8219		1.7882	2.4515	2.7555
H11	2.7650	2.9023	2.1776	1.1045	2.1727	3.9874	3.7109	3.0806	2.4491	1.7882		3.0757	2.4117
H12	2.1385	2.9321	2.8965	2.2026	1.1100	4.0080	2.6114	2.9804	3.9639	2.4515	3.0757		1.7910
H13	2.1249	3.2648	3.3687	2.2161	1.1031	4.3708	2.5830	3.9665	4.2043	2.7555	2.4117	1.7910

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
N1	C2	C3	106.574	N1	C2	O6	125.987
N1	C5	C4	101.618	N1	C5	H12	112.102
N1	C5	H13	111.429	C2	N1	C5	113.513
C2	N1	H7	118.453	C2	C3	C4	104.031
C2	C3	H8	107.246	C2	C3	H9	110.889
C3	C2	O6	127.436	C3	C4	C5	103.073
C3	C4	H10	113.972	C3	C4	H11	109.839
C4	C3	H8	111.684	C4	C3	H9	114.957
C4	C5	H12	111.069	C4	C5	H13	112.559
C5	N1	H7	122.494	C5	C4	H10	112.479
C5	C4	H11	109.051	H8	C3	H9	107.783
H10	C4	H11	108.285	H12	C5	H13	108.054

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

using model chemistry: CCD/cc-pVDZ

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: CCD/cc-pVDZ

States and conformations

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