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	hartrees
Energy at 0K	-77.075237
Energy at 298.15K	-77.075339
HF Energy	-77.075237
Nuclear repulsion energy	23.488259

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3096	2960	2.65
2	A₁	1609	1538	2.37
3	A₁	1452	1388	3.33
4	B₁	869	830	32.03
5	B₂	3176	3036	10.46
6	B₂	1039	993	7.14

Atom	y (Å)	z (Å)
C1	0.000	-0.486
C2	0.000	0.839
H3	0.930	-1.058
H4	-0.930	-1.058

	C1	C2	H3	H4
C1		1.3243	1.0925	1.0925
C2	1.3243		2.1128	2.1128
H3	1.0925	2.1128		1.8607
H4	1.0925	2.1128	1.8607

Number	Element	Mulliken
1	C	-0.406
2	C	0.030
3	H	0.188
4	H	0.188

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>	17.159
(<r²>)^1/2	4.142

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)