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	hartrees
Energy at 0K	-285.345589
Energy at 298.15K	-285.355078
HF Energy	-284.746251
Nuclear repulsion energy	236.000829

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3660	3478	37.00
2	A	3162	3004	25.69
3	A	3148	2991	15.12
4	A	3119	2964	30.65
5	A	3091	2937	17.13
6	A	3085	2931	14.46
7	A	3053	2901	56.65
8	A	1721	1635	316.88
9	A	1604	1524	6.97
10	A	1571	1493	4.82
11	A	1555	1477	4.54
12	A	1474	1401	17.56
13	A	1410	1340	5.57
14	A	1382	1313	4.13
15	A	1355	1288	1.63
16	A	1307	1242	125.21
17	A	1273	1209	35.12
18	A	1250	1187	0.67
19	A	1221	1160	3.91
20	A	1138	1081	1.02
21	A	1089	1035	14.32
22	A	1022	971	17.37
23	A	949	902	1.96
24	A	930	884	3.97
25	A	900	855	3.87
26	A	833	791	2.96
27	A	697	663	2.51
28	A	645	613	38.19
29	A	593	563	111.91
30	A	512	486	49.36
31	A	463	440	9.30
32	A	191	181	2.58
33	A	144	137	0.58

Atom	x (Å)	y (Å)	z (Å)
N1	0.077	-1.112	-0.033
C2	0.908	-0.004	0.001
C3	0.005	1.232	0.148
C4	-1.421	0.714	-0.190
C5	-1.364	-0.819	0.112
O6	2.167	-0.021	-0.058
H7	0.462	-2.048	-0.059
H8	0.073	1.601	1.182
H9	0.350	2.033	-0.516
H10	-2.207	1.212	0.389
H11	-1.634	0.869	-1.257
H12	-1.719	-1.043	1.130
H13	-1.960	-1.404	-0.600

	N1	C2	C3	C4	C5	O6	H7	H8	H9	H10	H11	H12	H13
N1		1.3854	2.3529	2.3670	1.4774	2.3578	1.0120	2.9729	3.1941	3.2861	2.8900	2.1406	2.1343
C2	1.3854		1.5383	2.4442	2.4159	1.2605	2.0926	2.1607	2.1745	3.3665	2.9672	3.0418	3.2472
C3	2.3529	1.5383		1.5541	2.4664	2.5075	3.3185	1.1004	1.0960	2.2252	2.1883	3.0187	3.3720
C4	2.3670	2.4442	1.5541		1.5635	3.6643	3.3450	2.2144	2.2323	1.0968	1.0984	2.2178	2.2236
C5	1.4774	2.4159	2.4664	1.5635		3.6237	2.2074	3.0112	3.3864	2.2168	2.1903	1.1014	1.0974
O6	2.3578	1.2605	2.5075	3.6643	3.6237		2.6486	2.9242	2.7799	4.5664	4.0833	4.1897	4.3859
H7	1.0120	2.0926	3.3185	3.3450	2.2074	2.6486		3.8738	4.1080	4.2371	3.7864	2.6796	2.5635
H8	2.9729	2.1607	1.1004	2.2144	3.0112	2.9242	3.8738		1.7744	2.4456	3.0656	3.1942	4.0424
H9	3.1941	2.1745	1.0960	2.2323	3.3864	2.7799	4.1080	1.7744		2.8347	2.4165	4.0562	4.1424
H10	3.2861	3.3665	2.2252	1.0968	2.2168	4.5664	4.2371	2.4456	2.8347		1.7764	2.4232	2.8080
H11	2.8900	2.9672	2.1883	1.0984	2.1903	4.0833	3.7864	3.0656	2.4165	1.7764		3.0596	2.3890
H12	2.1406	3.0418	3.0187	2.2178	1.1014	4.1897	2.6796	3.1942	4.0562	2.4232	3.0596		1.7839
H13	2.1343	3.2472	3.3720	2.2236	1.0974	4.3859	2.5635	4.0424	4.1424	2.8080	2.3890	1.7839

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
N1	C2	C3	107.056	N1	C2	O6	125.960
N1	C5	C4	102.191	N1	C5	H12	111.378
N1	C5	H13	111.118	C2	N1	C5	115.066
C2	N1	H7	120.794	C2	C3	C4	104.441
C2	C3	H8	108.801	C2	C3	H9	110.134
C3	C2	O6	126.976	C3	C4	C5	104.581
C3	C4	H10	113.024	C3	C4	H11	109.988
C4	C3	H8	111.930	C4	C3	H9	113.660
C4	C5	H12	111.480	C4	C5	H13	112.183
C5	N1	H7	123.850	C5	C4	H10	111.672
C5	C4	H11	109.494	H8	C3	H9	107.778
H10	C4	H11	108.037	H12	C5	H13	108.448

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

using model chemistry: MP2=FULL/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: MP2=FULL/6-31G

States and conformations

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