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	hartrees
Energy at 0K	-283.809493
Energy at 298.15K	-283.819136
Nuclear repulsion energy	238.169263

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3717	3463	39.33
2	A	3239	3017	13.96
3	A	3226	3006	13.48
4	A	3191	2972	33.13
5	A	3171	2954	10.07
6	A	3161	2945	9.34
7	A	3123	2909	50.01
8	A	1859	1732	362.79
9	A	1645	1533	3.82
10	A	1609	1499	5.86
11	A	1587	1478	6.53
12	A	1518	1414	24.90
13	A	1446	1347	5.72
14	A	1425	1328	6.11
15	A	1396	1301	1.27
16	A	1337	1246	37.76
17	A	1292	1204	138.25
18	A	1284	1196	9.87
19	A	1261	1175	8.66
20	A	1165	1086	1.02
21	A	1102	1027	18.00
22	A	1029	959	17.06
23	A	961	896	3.92
24	A	942	878	7.19
25	A	911	849	2.69
26	A	836	778	6.24
27	A	713	665	12.23
28	A	681	634	59.93
29	A	610	568	78.83
30	A	531	495	51.82
31	A	482	449	10.14
32	A	208	194	2.52
33	A	154	144	0.25

Atom	x (Å)	y (Å)	z (Å)
N1	0.088	-1.102	-0.031
C2	0.910	-0.003	0.001
C3	-0.007	1.224	0.174
C4	-1.409	0.703	-0.224
C5	-1.348	-0.816	0.126
O6	2.134	-0.011	-0.070
H7	0.468	-2.032	-0.066
H8	0.021	1.527	1.223
H9	0.348	2.048	-0.439
H10	-2.219	1.210	0.295
H11	-1.548	0.815	-1.299
H12	-1.685	-0.995	1.150
H13	-1.948	-1.416	-0.556

	N1	C2	C3	C4	C5	O6	H7	H8	H9	H10	H11	H12	H13
N1		1.3733	2.3367	2.3527	1.4718	2.3193	1.0052	2.9131	3.1873	3.2820	2.8208	2.1326	2.1255
C2	1.3733		1.5406	2.4338	2.4025	1.2265	2.0780	2.1495	2.1711	3.3682	2.8976	3.0060	3.2363
C3	2.3367	1.5406		1.5471	2.4411	2.4836	3.2988	1.0922	1.0867	2.2154	2.1700	2.9478	3.3566
C4	2.3527	2.4338	1.5471		1.5600	3.6172	3.3208	2.1939	2.2230	1.0875	1.0897	2.2015	2.2116
C5	1.4718	2.4025	2.4411	1.5600		3.5787	2.1937	2.9261	3.3759	2.2116	2.1747	1.0930	1.0889
O6	2.3193	1.2265	2.4836	3.6172	3.5787		2.6188	2.9159	2.7506	4.5357	3.9681	4.1279	4.3441
H7	1.0052	2.0780	3.2988	3.3208	2.1937	2.6188		3.8111	4.0988	4.2260	3.6995	2.6815	2.5410
H8	2.9131	2.1495	1.0922	2.1939	2.9261	2.9159	3.8111		1.7718	2.4448	3.0535	3.0448	3.9620
H9	3.1873	2.1711	1.0867	2.2230	3.3759	2.7506	4.0988	1.7718		2.7986	2.4197	3.9895	4.1575
H10	3.2820	3.3682	2.2154	1.0875	2.2116	4.5357	4.2260	2.4448	2.7986		1.7740	2.4240	2.7734
H11	2.8208	2.8976	2.1700	1.0897	2.1747	3.9681	3.6995	3.0535	2.4197	1.7740		3.0481	2.3849
H12	2.1326	3.0060	2.9478	2.2015	1.0930	4.1279	2.6815	3.0448	3.9895	2.4240	3.0481		1.7771
H13	2.1255	3.2363	3.3566	2.2116	1.0889	4.3441	2.5410	3.9620	4.1575	2.7734	2.3849	1.7771

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
N1	C2	C3	106.484	N1	C2	O6	126.191
N1	C5	C4	101.756	N1	C5	H12	111.648
N1	C5	H13	111.330	C2	N1	C5	115.177
C2	N1	H7	120.988	C2	C3	C4	104.036
C2	C3	H8	108.257	C2	C3	H9	110.259
C3	C2	O6	127.313	C3	C4	C5	103.559
C3	C4	H10	113.316	C3	C4	H11	109.544
C4	C3	H8	111.287	C4	C3	H9	113.987
C4	C5	H12	110.936	C4	C5	H13	111.989
C5	N1	H7	123.558	C5	C4	H10	112.074
C5	C4	H11	109.028	H8	C3	H9	108.813
H10	C4	H11	109.145	H12	C5	H13	109.068

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

using model chemistry: CID/3-21G

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: CID/3-21G

States and conformations

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