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	hartrees
Energy at 0K	-304.521483
Energy at 298.15K	-304.526130
HF Energy	-303.584054
Nuclear repulsion energy	217.397501

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3333	3159	0.06
2	A	3226	3058	1.06
3	A	3212	3045	0.03
4	A	3141	2978	1.43
5	A	1938	1837	317.23
6	A	1765	1673	285.11
7	A	1474	1397	11.13
8	A	1441	1366	4.31
9	A	1272	1206	81.91
10	A	1224	1161	0.92
11	A	1109	1051	2.09
12	A	1021	968	175.29
13	A	996	945	3.38
14	A	982	931	0.20
15	A	909	861	170.09
16	A	823	781	40.79
17	A	732	694	0.06
18	A	678	642	0.11
19	A	656	622	67.30
20	A	533	505	2.72
21	A	502	476	3.61
22	A	370	351	0.09
23	A	319	302	0.70
24	A	96	91	0.95

Atom	x (Å)	y (Å)	z (Å)
C1	-2.214	-0.090	-0.002
H2	-2.694	-1.014	-0.001
H3	-2.776	0.783	-0.002
O4	0.043	-1.010	0.003
C5	0.973	-0.024	0.001
O6	2.182	-0.108	-0.003
C7	0.049	1.092	0.002
H8	0.067	1.693	-0.904
H9	0.070	1.689	0.910
C10	-0.885	-0.011	-0.001

	C1	H2	H3	O4	C5	O6	C7	H8	H9	C10
C1		1.0411	1.0385	2.4368	3.1875	4.3953	2.5529	3.0318	3.0353	1.3308
H2	1.0411		1.7988	2.7361	3.7980	4.9586	3.4578	3.9699	3.9718	2.0676
H3	1.0385	1.7988		3.3409	3.8352	5.0373	2.8424	3.1186	3.1233	2.0511
O4	2.4368	2.7361	3.3409		1.3563	2.3216	2.1020	2.8511	2.8479	1.3634
C5	3.1875	3.7980	3.8352	1.3563		1.2114	1.4482	2.1415	2.1389	1.8584
O6	4.3953	4.9586	5.0373	2.3216	1.2114		2.4465	2.9199	2.9190	3.0684
C7	2.5529	3.4578	2.8424	2.1020	1.4482	2.4465		1.0872	1.0872	1.4457
H8	3.0318	3.9699	3.1186	2.8511	2.1415	2.9199	1.0872		1.8138	2.1509
H9	3.0353	3.9718	3.1233	2.8479	2.1389	2.9190	1.0872	1.8138		2.1525
C10	1.3308	2.0676	2.0511	1.3634	1.8584	3.0684	1.4457	2.1509	2.1525

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C10	O4	129.498	C1	C10	C7	133.662
H2	C1	H3	119.753	H2	C1	C10	120.830
H3	C1	C10	119.417	O4	C5	O6	129.331
O4	C5	C7	97.042	O4	C10	C7	96.840
C5	O4	C10	86.206	C5	C7	H8	114.517
C5	C7	H9	114.295	C5	C7	C10	79.911
O6	C5	C7	133.626	H8	C7	H9	113.061
H8	C7	C10	115.522	H9	C7	C10	115.666

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

using model chemistry: MP2/TZVP

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/TZVP

States and conformations

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