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	hartrees
Energy at 0K	-76.992062
Energy at 298.15K	-76.992186
HF Energy	-76.758199
Nuclear repulsion energy	23.868036

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3143	2995	3.06
2	A₁	1641	1563	2.34
3	A₁	1451	1382	5.33
4	B₁	952	907	33.19
5	B₂	3232	3079	2.91
6	B₂	1026	977	3.45

Atom	y (Å)	z (Å)
C1	0.000	-0.476
C2	0.000	0.822
H3	0.928	-1.039
H4	-0.928	-1.039

	C1	C2	H3	H4
C1		1.2980	1.0851	1.0851
C2	1.2980		2.0795	2.0795
H3	1.0851	2.0795		1.8551
H4	1.0851	2.0795	1.8551

All results from a given calculation for CCH₂ (vinylidene)

using model chemistry: MP2=FULL/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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All results from a given calculation for CCH2 (vinylidene)

using model chemistry: MP2=FULL/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)