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	hartrees
Energy at 0K	-77.091415
Energy at 298.15K	-77.091430
HF Energy	-77.091415
Nuclear repulsion energy	23.356105

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2957	2939	5.45
2	A₁	1558	1549	6.18
3	A₁	1329	1321	1.61
4	B₁	685	681	0.45
5	B₂	3036	3017	3.89
6	B₂	946	940	3.13

Atom	y (Å)	z (Å)
C1	0.000	-0.487
C2	0.000	0.840
H3	0.949	-1.058
H4	-0.949	-1.058

	C1	C2	H3	H4
C1		1.3275	1.1075	1.1075
C2	1.3275		2.1219	2.1219
H3	1.1075	2.1219		1.8989
H4	1.1075	2.1219	1.8989

Number	Element	Mulliken
1	C	0.801
2	C	-0.321
3	H	-0.240
4	H	-0.240

All results from a given calculation for CCH₂ (vinylidene)

using model chemistry: PBEPBE/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>	17.633
(<r²>)^1/2	4.199

All results from a given calculation for CCH2 (vinylidene)

using model chemistry: PBEPBE/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)