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	hartrees
Energy at 0K	-191.394050
Energy at 298.15K	-191.397414
HF Energy	-190.801140
Nuclear repulsion energy	101.960216

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3238	3077	7.21
2	A	3175	3017	17.86
3	A	3156	2999	20.14
4	A	3079	2926	36.32
5	A	2221	2111	490.82
6	A	1551	1474	7.72
7	A	1525	1449	7.72
8	A	1456	1384	9.72
9	A	1425	1354	2.91
10	A	1170	1112	0.08
11	A	1106	1051	10.09
12	A	1078	1024	0.22
13	A	919	873	3.76
14	A	654	622	4.60
15	A	545	518	10.68
16	A	497	472	70.51
17	A	210	200	1.36
18	A	124	118	0.15

Atom	x (Å)	y (Å)	z (Å)
C1	-0.769	0.136	-0.000
C2	0.476	0.579	-0.000
C3	1.680	-0.338	0.000
O4	-1.863	-0.273	0.000
H5	0.603	1.656	0.000
H6	1.376	-1.387	-0.000
H7	2.299	-0.170	-0.885
H8	2.298	-0.171	0.885

	C1	C2	C3	O4	H5	H6	H7	H8
C1		1.3213	2.4935	1.1680	2.0474	2.6300	3.2072	3.2070
C2	1.3213		1.5125	2.4892	1.0848	2.1613	2.1600	2.1600
C3	2.4935	1.5125		3.5427	2.2659	1.0917	1.0930	1.0930
O4	1.1680	2.4892	3.5427		3.1306	3.4246	4.2558	4.2554
H5	2.0474	1.0848	2.2659	3.1306		3.1392	2.6447	2.6448
H6	2.6300	2.1613	1.0917	3.4246	3.1392		1.7645	1.7645
H7	3.2072	2.1600	1.0930	4.2558	2.6447	1.7645		1.7699
H8	3.2070	2.1600	1.0930	4.2554	2.6448	1.7645	1.7699

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	123.124	C1	C2	H5	116.284
C2	C1	O4	179.077	C2	C3	H6	111.153
C2	C3	H7	110.971	C2	C3	H8	110.974
C3	C2	H5	120.592	H6	C3	H7	107.734
H6	C3	H8	107.735	H7	C3	H8	108.129

All results from a given calculation for C₃H₄O (Methylketene)

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 C3H4O (Methylketene)

using model chemistry: MP2/6-311G*

States and conformations

All results from a given calculation for C₃H₄O (Methylketene)