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	hartrees
Energy at 0K	-191.312714
Energy at 298.15K	-191.316064
HF Energy	-190.755853
Nuclear repulsion energy	101.687293

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3269	3082	7.87
2	A	3202	3019	15.70
3	A	3184	3003	19.84
4	A	3105	2928	31.84
5	A	2224	2097	437.02
6	A	1574	1484	5.26
7	A	1547	1459	5.30
8	A	1478	1394	11.83
9	A	1441	1358	2.54
10	A	1183	1115	0.13
11	A	1118	1054	11.54
12	A	1093	1031	0.21
13	A	930	877	3.07
14	A	647	610	4.97
15	A	519	489	66.51
16	A	513	483	8.14
17	A	210	198	1.80
18	A	126	118	0.15

Atom	x (Å)	y (Å)	z (Å)
C1	-0.764	0.132	-0.000
C2	0.481	0.577	-0.000
C3	1.682	-0.338	0.000
O4	-1.873	-0.269	0.000
H5	0.611	1.654	0.000
H6	1.374	-1.387	-0.000
H7	2.302	-0.171	-0.886
H8	2.301	-0.171	0.886

	C1	C2	C3	O4	H5	H6	H7	H8
C1		1.3229	2.4911	1.1785	2.0512	2.6231	3.2061	3.2059
C2	1.3229		1.5093	2.5014	1.0849	2.1569	2.1581	2.1582
C3	2.4911	1.5093		3.5551	2.2618	1.0929	1.0941	1.0941
O4	1.1785	2.5014	3.5551		3.1409	3.4338	4.2686	4.2683
H5	2.0512	1.0849	2.2618	3.1409		3.1351	2.6410	2.6412
H6	2.6231	2.1569	1.0929	3.4338	3.1351		1.7672	1.7673
H7	3.2061	2.1581	1.0941	4.2686	2.6410	1.7672		1.7720
H8	3.2059	2.1582	1.0941	4.2683	2.6412	1.7673	1.7720

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	123.044	C1	C2	H5	116.485
C2	C1	O4	179.745	C2	C3	H6	110.961
C2	C3	H7	110.981	C2	C3	H8	110.985
C3	C2	H5	120.472	H6	C3	H7	107.815
H6	C3	H8	107.816	H7	C3	H8	108.148

All results from a given calculation for C₃H₄O (Methylketene)

using model chemistry: MP2/6-31G*

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 C3H4O (Methylketene)

using model chemistry: MP2/6-31G*

States and conformations

All results from a given calculation for C₃H₄O (Methylketene)