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	hartrees
Energy at 0K	-285.818588
Energy at 298.15K	-285.828117
HF Energy	-284.891527
Nuclear repulsion energy	239.919961

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3750	3516	39.42
2	A	3218	3017	18.22
3	A	3206	3006	17.47
4	A	3173	2975	36.95
5	A	3147	2951	16.77
6	A	3138	2942	12.21
7	A	3092	2899	61.64
8	A	1898	1780	438.33
9	A	1599	1500	3.98
10	A	1561	1463	5.84
11	A	1533	1437	3.49
12	A	1504	1411	59.83
13	A	1419	1330	10.67
14	A	1395	1308	28.45
15	A	1365	1280	40.74
16	A	1313	1231	68.63
17	A	1286	1206	6.29
18	A	1256	1178	0.99
19	A	1223	1147	5.86
20	A	1128	1058	0.27
21	A	1119	1050	14.97
22	A	1036	971	10.25
23	A	955	895	1.16
24	A	939	880	2.20
25	A	922	864	5.27
26	A	845	793	4.46
27	A	711	666	11.91
28	A	649	608	17.74
29	A	569	533	51.63
30	A	502	471	77.73
31	A	476	446	13.69
32	A	209	196	6.21
33	A	141	133	2.15

Atom	x (Å)	y (Å)	z (Å)
N1	0.081	-1.095	-0.093
C2	0.901	0.001	-0.009
C3	-0.008	1.217	0.148
C4	-1.404	0.689	-0.205
C5	-1.324	-0.807	0.149
O6	2.117	-0.012	-0.039
H7	0.479	-2.014	-0.013
H8	0.051	1.542	1.189
H9	0.338	2.037	-0.477
H10	-2.209	1.195	0.325
H11	-1.582	0.796	-1.275
H12	-1.601	-0.983	1.194
H13	-1.968	-1.420	-0.481

	N1	C2	C3	C4	C5	O6	H7	H8	H9	H10	H11	H12	H13
N1		1.3715	2.3258	2.3234	1.4540	2.3074	1.0055	2.9319	3.1655	3.2650	2.7813	2.1210	2.1101
C2	1.3715		1.5265	2.4136	2.3724	1.2166	2.0592	2.1286	2.1638	3.3481	2.8988	2.9458	3.2364
C3	2.3258	1.5265		1.5329	2.4136	2.4624	3.2718	1.0925	1.0875	2.2076	2.1630	2.9107	3.3448
C4	2.3234	2.4136	1.5329		1.5394	3.5942	3.3001	2.1880	2.2189	1.0884	1.0904	2.1892	2.2007
C5	1.4540	2.3724	2.4136	1.5394		3.5368	2.1757	2.9134	3.3526	2.1959	2.1597	1.0954	1.0899
O6	2.3074	1.2166	2.4624	3.5942	3.5368		2.5877	2.8617	2.7490	4.5061	3.9834	4.0363	4.3438
H7	1.0055	2.0592	3.2718	3.3001	2.1757	2.5877		3.7780	4.0803	4.1999	3.7066	2.6167	2.5610
H8	2.9319	2.1286	1.0925	2.1880	2.9134	2.8617	3.7780		1.7617	2.4444	3.0492	3.0176	3.9544
H9	3.1655	2.1638	1.0875	2.2189	3.3526	2.7490	4.0803	1.7617		2.7994	2.4213	3.9590	4.1553
H10	3.2650	3.3481	2.2076	1.0884	2.1959	4.5061	4.1999	2.4444	2.7994		1.7644	2.4227	2.7470
H11	2.7813	2.8988	2.1630	1.0904	2.1597	3.9834	3.7066	3.0492	2.4213	1.7644		3.0436	2.3854
H12	2.1210	2.9458	2.9107	2.1892	1.0954	4.0363	2.6167	3.0176	3.9590	2.4227	3.0436		1.7693
H13	2.1101	3.2364	3.3448	2.2007	1.0899	4.3438	2.5610	3.9544	4.1553	2.7470	2.3854	1.7693

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
N1	C2	C3	106.622	N1	C2	O6	126.030
N1	C5	C4	101.788	N1	C5	H12	111.837
N1	C5	H13	111.294	C2	N1	C5	114.172
C2	N1	H7	119.267	C2	C3	C4	104.166
C2	C3	H8	107.571	C2	C3	H9	110.617
C3	C2	O6	127.344	C3	C4	C5	103.548
C3	C4	H10	113.658	C3	C4	H11	109.929
C4	C3	H8	111.796	C4	C3	H9	114.654
C4	C5	H12	111.261	C4	C5	H13	112.524
C5	N1	H7	123.384	C5	C4	H10	112.226
C5	C4	H11	109.227	H8	C3	H9	107.821
H10	C4	H11	108.152	H12	C5	H13	108.120

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

using model chemistry: CCD/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: CCD/6-31G**

States and conformations

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