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	hartrees
Energy at 0K	-303.965735
Energy at 298.15K	-303.970336
HF Energy	-303.367781
Nuclear repulsion energy	210.090446

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3290	3176	2.86
2	A	3170	3060	0.26
3	A	3166	3056	3.63
4	A	3086	2979	4.38
5	A	1798	1736	97.62
6	A	1688	1629	397.01
7	A	1498	1446	19.10
8	A	1458	1407	3.10
9	A	1270	1226	10.81
10	A	1198	1156	53.00
11	A	1127	1087	0.44
12	A	1000	965	2.82
13	A	957	924	52.55
14	A	903	872	103.67
15	A	846	817	69.75
16	A	804	776	95.06
17	A	730	704	195.18
18	A	723	698	1.14
19	A	635	613	1.65
20	A	495	477	4.08
21	A	493	476	4.38
22	A	423	409	4.47
23	A	296	285	0.90
24	A	124	119	0.05

Atom	x (Å)	y (Å)	z (Å)
C1	-2.339	-0.139	-0.000
H2	-2.773	-1.140	-0.000
H3	-3.006	0.724	-0.001
O4	0.033	-1.030	0.000
C5	1.097	0.006	-0.000
O6	2.315	-0.168	-0.000
C7	0.047	1.165	0.000
H8	0.084	1.791	-0.905
H9	0.084	1.791	0.905
C10	-1.000	0.038	0.000

	C1	H2	H3	O4	C5	O6	C7	H8	H9	C10
C1		1.0908	1.0908	2.5332	3.4391	4.6536	2.7195	3.2273	3.2275	1.3503
H2	1.0908		1.8788	2.8075	4.0360	5.1792	3.6424	4.1918	4.1919	2.1282
H3	1.0908	1.8788		3.5080	4.1651	5.3945	3.0846	3.3916	3.3920	2.1195
O4	2.5332	2.8075	3.5080		1.4851	2.4390	2.1948	2.9627	2.9622	1.4854
C5	3.4391	4.0360	4.1651	1.4851		1.2299	1.5638	2.2427	2.2427	2.0976
O6	4.6536	5.1792	5.3945	2.4390	1.2299		2.6304	3.1034	3.1036	3.3213
C7	2.7195	3.6424	3.0846	2.1948	1.5638	2.6304		1.1008	1.1008	1.5389
H8	3.2273	4.1918	3.3916	2.9627	2.2427	3.1034	1.1008		1.8100	2.2512
H9	3.2275	4.1919	3.3920	2.9622	2.2427	3.1036	1.1008	1.8100		2.2511
C10	1.3503	2.1282	2.1195	1.4854	2.0976	3.3213	1.5389	2.2512	2.2511

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C10	O4	126.517	C1	C10	C7	140.443
H2	C1	H3	118.896	H2	C1	C10	120.970
H3	C1	C10	120.134	O4	C5	O6	127.627
O4	C5	C7	92.048	O4	C10	C7	93.039
C5	O4	C10	89.842	C5	C7	H8	113.498
C5	C7	H9	113.495	C5	C7	C10	85.070
O6	C5	C7	140.324	H8	C7	H9	110.596
H8	C7	C10	116.053	H9	C7	C10	116.047

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

using model chemistry: MP2/SDD

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/SDD

States and conformations

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