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	hartrees
Energy at 0K	-303.959817
Energy at 298.15K	-303.964419
HF Energy	-303.366963
Nuclear repulsion energy	210.068497

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3290	3169	2.99
2	A	3170	3053	0.27
3	A	3166	3050	3.91
4	A	3087	2973	4.54
5	A	1799	1732	96.39
6	A	1688	1626	396.62
7	A	1499	1444	19.13
8	A	1458	1404	3.09
9	A	1271	1224	10.77
10	A	1198	1154	52.90
11	A	1126	1085	0.44
12	A	1000	963	2.87
13	A	958	923	53.38
14	A	904	871	104.02
15	A	847	815	69.38
16	A	805	775	95.08
17	A	730	703	193.66
18	A	724	697	1.10
19	A	636	612	1.62
20	A	495	476	4.10
21	A	494	476	4.39
22	A	424	408	4.53
23	A	295	285	0.89
24	A	124	119	0.05

Atom	x (Å)	y (Å)	z (Å)
C1	-2.340	-0.139	-0.000
H2	-2.774	-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	0.048	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		1.0910	1.0909	2.5340	3.4398	4.6544	2.7203	3.2281	3.2282	1.3509
H2	1.0910		1.8789	2.8087	4.0369	5.1804	3.6433	4.1928	4.1929	2.1289
H3	1.0909	1.8789		3.5088	4.1657	5.3953	3.0854	3.3924	3.3927	2.1201
O4	2.5340	2.8087	3.5088		1.4849	2.4390	2.1948	2.9629	2.9625	1.4854
C5	3.4398	4.0369	4.1657	1.4849		1.2301	1.5638	2.2430	2.2429	2.0977
O6	4.6544	5.1804	5.3953	2.4390	1.2301		2.6304	3.1036	3.1038	3.3215
C7	2.7203	3.6433	3.0854	2.1948	1.5638	2.6304		1.1009	1.1009	1.5392
H8	3.2281	4.1928	3.3924	2.9629	2.2430	3.1036	1.1009		1.8098	2.2517
H9	3.2282	4.1929	3.3927	2.9625	2.2429	3.1038	1.1009	1.8098		2.2516
C10	1.3509	2.1289	2.1201	1.4854	2.0977	3.3215	1.5392	2.2517	2.2516

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C10	O4	126.541	C1	C10	C7	140.432
H2	C1	H3	118.885	H2	C1	C10	120.976
H3	C1	C10	120.139	O4	C5	O6	127.633
O4	C5	C7	92.057	O4	C10	C7	93.026
C5	O4	C10	89.854	C5	C7	H8	113.512
C5	C7	H9	113.508	C5	C7	C10	85.063
O6	C5	C7	140.311	H8	C7	H9	110.567
H8	C7	C10	116.062	H9	C7	C10	116.055

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

using model chemistry: MP2/LANL2DZ

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/LANL2DZ

States and conformations

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