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	hartrees
Energy at 0K	-304.495793
Energy at 298.15K	-304.500629
HF Energy	-303.558050
Nuclear repulsion energy	217.242982

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3323	3157	0.23
2	A	3215	3055	0.97
3	A	3201	3042	0.28
4	A	3131	2975	1.60
5	A	1954	1857	313.36
6	A	1765	1677	250.60
7	A	1463	1390	13.55
8	A	1428	1357	3.79
9	A	1283	1219	82.53
10	A	1216	1155	1.51
11	A	1127	1071	1.28
12	A	1023	972	173.06
13	A	1002	952	5.73
14	A	984	935	1.29
15	A	919	874	150.10
16	A	826	785	34.78
17	A	801	761	59.32
18	A	739	702	0.17
19	A	677	643	0.04
20	A	532	505	2.83
21	A	514	488	3.83
22	A	445	423	3.66
23	A	315	299	0.71
24	A	122	116	0.63

Atom	x (Å)	y (Å)	z (Å)
C1	-2.265	-0.151	-0.000
H2	-2.686	-1.149	-0.000
H3	-2.921	0.709	-0.001
O4	0.039	-0.975	0.000
C5	1.050	-0.004	0.000
O6	2.225	-0.182	-0.000
C7	0.051	1.154	0.000
H8	0.086	1.773	-0.898
H9	0.086	1.772	0.899
C10	-0.948	0.027	0.000

	C1	H2	H3	O4	C5	O6	C7	H8	H9	C10
C1		1.0824	1.0817	2.4467	3.3188	4.4899	2.6587	3.1677	3.1676	1.3287
H2	1.0824		1.8722	2.7305	3.9079	5.0049	3.5768	4.1258	4.1256	2.0980
H3	1.0817	1.8722		3.4052	4.0349	5.2223	3.0052	3.3132	3.3135	2.0871
O4	2.4467	2.7305	3.4052		1.4020	2.3250	2.1287	2.8909	2.8904	1.4065
C5	3.3188	3.9079	4.0349	1.4020		1.1877	1.5296	2.2124	2.2121	1.9991
O6	4.4899	5.0049	5.2223	2.3250	1.1877		2.5515	3.0338	3.0338	3.1800
C7	2.6587	3.5768	3.0052	2.1287	1.5296	2.5515		1.0914	1.0914	1.5063
H8	3.1677	4.1258	3.3132	2.8909	2.2124	3.0338	1.0914		1.7972	2.2189
H9	3.1676	4.1256	3.3135	2.8904	2.2121	3.0338	1.0914	1.7972		2.2186
C10	1.3287	2.0980	2.0871	1.4065	1.9991	3.1800	1.5063	2.2189	2.2186

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C10	O4	126.871	C1	C10	C7	139.281
H2	C1	H3	119.789	H2	C1	C10	120.600
H3	C1	C10	119.611	O4	C5	O6	127.549
O4	C5	C7	93.023	O4	C10	C7	93.848
C5	O4	C10	90.766	C5	C7	H8	114.109
C5	C7	H9	114.081	C5	C7	C10	82.362
O6	C5	C7	139.427	H8	C7	H9	110.850
H8	C7	C10	116.433	H9	C7	C10	116.405

All results from a given calculation for C₄H₄O₂ (2-Oxetanone, 4-methylene-)

using model chemistry: MP2/6-311G**

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 C4H4O2 (2-Oxetanone, 4-methylene-)

using model chemistry: MP2/6-311G**

States and conformations

All results from a given calculation for C₄H₄O₂ (2-Oxetanone, 4-methylene-)