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	hartrees
Energy at 0K	-285.754129
Energy at 298.15K	-285.763648
HF Energy	-284.878072
Nuclear repulsion energy	239.775775

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3697	3470	41.33
2	A	3196	3000	15.12
3	A	3185	2990	14.78
4	A	3155	2961	33.17
5	A	3131	2939	14.68
6	A	3119	2928	9.86
7	A	3077	2888	55.62
8	A	1906	1789	463.80
9	A	1598	1500	2.77
10	A	1562	1466	8.02
11	A	1534	1440	4.61
12	A	1503	1410	67.05
13	A	1417	1330	10.64
14	A	1391	1306	26.16
15	A	1363	1279	42.94
16	A	1315	1235	63.89
17	A	1284	1205	4.47
18	A	1255	1178	1.03
19	A	1223	1148	5.99
20	A	1131	1062	0.29
21	A	1121	1052	15.02
22	A	1038	974	11.93
23	A	957	898	0.80
24	A	941	883	1.93
25	A	925	868	4.31
26	A	849	797	5.64
27	A	714	670	11.95
28	A	652	612	19.85
29	A	572	537	52.62
30	A	503	472	83.29
31	A	477	448	15.57
32	A	208	195	6.74
33	A	143	134	2.29

Atom	x (Å)	y (Å)	z (Å)
N1	0.083	-1.094	-0.095
C2	0.901	0.001	-0.009
C3	-0.008	1.218	0.145
C4	-1.406	0.689	-0.202
C5	-1.323	-0.809	0.149
O6	2.116	-0.011	-0.037
H7	0.485	-2.017	-0.013
H8	0.057	1.550	1.188
H9	0.339	2.038	-0.485
H10	-2.211	1.196	0.335
H11	-1.591	0.799	-1.275
H12	-1.599	-0.990	1.198
H13	-1.968	-1.424	-0.485

	N1	C2	C3	C4	C5	O6	H7	H8	H9	H10	H11	H12	H13
N1		1.3699	2.3260	2.3257	1.4555	2.3040	1.0098	2.9395	3.1670	3.2700	2.7890	2.1241	2.1135
C2	1.3699		1.5259	2.4147	2.3722	1.2155	2.0610	2.1321	2.1656	3.3512	2.9062	2.9478	3.2386
C3	2.3260	1.5259		1.5344	2.4159	2.4605	3.2758	1.0966	1.0918	2.2119	2.1676	2.9176	3.3496
C4	2.3257	2.4147	1.5344		1.5408	3.5946	3.3067	2.1939	2.2239	1.0926	1.0943	2.1944	2.2054
C5	1.4555	2.3722	2.4159	1.5408		3.5352	2.1807	2.9238	3.3573	2.2003	2.1644	1.0992	1.0938
O6	2.3040	1.2155	2.4605	3.5946	3.5352		2.5853	2.8604	2.7491	4.5079	3.9910	4.0355	4.3445
H7	1.0098	2.0610	3.2758	3.3067	2.1807	2.5853		3.7886	4.0852	4.2087	3.7189	2.6203	2.5668
H8	2.9395	2.1321	1.0966	2.1939	2.9238	2.8604	3.7886		1.7664	2.4491	3.0571	3.0321	3.9682
H9	3.1670	2.1656	1.0918	2.2239	3.3573	2.7491	4.0852	1.7664		2.8088	2.4257	3.9699	4.1610
H10	3.2700	3.3512	2.2119	1.0926	2.2003	4.5079	4.2087	2.4491	2.8088		1.7703	2.4281	2.7563
H11	2.7890	2.9062	2.1676	1.0943	2.1644	3.9910	3.7189	3.0571	2.4257	1.7703		3.0518	2.3900
H12	2.1241	2.9478	2.9176	2.1944	1.0992	4.0355	2.6203	3.0321	3.9699	2.4281	3.0518		1.7760
H13	2.1135	3.2386	3.3496	2.2054	1.0938	4.3445	2.5668	3.9682	4.1610	2.7563	2.3900	1.7760

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
N1	C2	C3	106.761	N1	C2	O6	125.931
N1	C5	C4	101.789	N1	C5	H12	111.738
N1	C5	H13	111.215	C2	N1	C5	114.164
C2	N1	H7	119.236	C2	C3	C4	104.189
C2	C3	H8	107.651	C2	C3	H9	110.552
C3	C2	O6	127.303	C3	C4	C5	103.549
C3	C4	H10	113.634	C3	C4	H11	109.963
C4	C3	H8	111.919	C4	C3	H9	114.690
C4	C5	H12	111.346	C4	C5	H13	112.566
C5	N1	H7	123.376	C5	C4	H10	112.229
C5	C4	H11	109.278	H8	C3	H9	107.637
H10	C4	H11	108.096	H12	C5	H13	108.165

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

using model chemistry: MP3/6-31G*

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: MP3/6-31G*

States and conformations

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