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	hartrees
Energy at 0K	-76.759591
Energy at 298.15K	-76.759700
HF Energy	-76.759591
Nuclear repulsion energy	23.443837

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3217	3217	9.36
2	A₁	1583	1583	0.04
3	A₁	1401	1401	9.75
4	B₁	870	870	41.74
5	B₂	3300	3300	8.53
6	B₂	1083	1083	1.09

Atom	y (Å)	z (Å)
C1	0.000	-0.493
C2	0.000	0.843
H3	0.922	-1.052
H4	-0.922	-1.052

	C1	C2	H3	H4
C1		1.3360	1.0789	1.0789
C2	1.3360		2.1082	2.1082
H3	1.0789	2.1082		1.8446
H4	1.0789	2.1082	1.8446

Number	Element	Mulliken
1	C	-0.194
2	C	-0.031
3	H	0.113
4	H	0.113

All results from a given calculation for CCH₂ (vinylidene)

using model chemistry: ROHF/TZVP

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>	17.448
(<r²>)^1/2	4.177

All results from a given calculation for CCH2 (vinylidene)

using model chemistry: ROHF/TZVP

States and conformations

State 1 (1A1)

State 2 (3B2)

All results from a given calculation for CCH₂ (vinylidene)

State 1 (¹A₁)

State 2 (³B₂)