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	hartrees
Energy at 0K	-77.090183
Energy at 298.15K	-77.090257
HF Energy	-77.090183
Nuclear repulsion energy	23.580050

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3088	2943	4.01
2	A₁	1626	1549	3.96
3	A₁	1423	1356	1.99
4	B₁	798	761	16.63
5	B₂	3160	3012	7.70
6	B₂	1008	960	4.16

Atom	y (Å)	z (Å)
C1	0.000	-0.483
C2	0.000	0.833
H3	0.934	-1.053
H4	-0.934	-1.053

	C1	C2	H3	H4
C1		1.3160	1.0942	1.0942
C2	1.3160		2.1046	2.1046
H3	1.0942	2.1046		1.8679
H4	1.0942	2.1046	1.8679

Number	Element	Mulliken
1	C	-0.397
2	C	0.007
3	H	0.195
4	H	0.195

All results from a given calculation for CCH₂ (vinylidene)

using model chemistry: PBE1PBE/6-31G**

States and conformations

State 1 (¹A₁)

State 2 (³B₂)

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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<r²>	17.015
(<r²>)^1/2	4.125

All results from a given calculation for CCH2 (vinylidene)

using model chemistry: PBE1PBE/6-31G**

States and conformations

State 1 (1A1)

State 2 (3B2)

All results from a given calculation for CCH₂ (vinylidene)

State 1 (¹A₁)

State 2 (³B₂)