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	hartrees
Energy at 0K	-77.179912
Energy at 298.15K	-77.179990
HF Energy	-77.179912
Nuclear repulsion energy	23.527981

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3069	2941	5.07
2	A₁	1604	1537	3.85
3	A₁	1388	1331	3.26
4	B₁	815	781	11.24
5	B₂	3157	3025	3.18
6	B₂	986	945	2.20

Atom	y (Å)	z (Å)
C1	0.000	-0.485
C2	0.000	0.835
H3	0.940	-1.050
H4	-0.940	-1.050

	C1	C2	H3	H4
C1		1.3192	1.0968	1.0968
C2	1.3192		2.1059	2.1059
H3	1.0968	2.1059		1.8797
H4	1.0968	2.1059	1.8797

Number	Element	Mulliken
1	C	0.683
2	C	-0.331
3	H	-0.176
4	H	-0.176

All results from a given calculation for CCH₂ (vinylidene)

using model chemistry: mPW1PW91/aug-cc-pVDZ

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>	17.372
(<r²>)^1/2	4.168

All results from a given calculation for CCH2 (vinylidene)

using model chemistry: mPW1PW91/aug-cc-pVDZ

States and conformations

State 1 (1A1)

State 2 (3B2)

All results from a given calculation for CCH₂ (vinylidene)

State 1 (¹A₁)

State 2 (³B₂)