CCCBDB listing of experimental data page 2

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Mode Number	Symmetry	Frequency			Intensity			Comment	Description
Mode Number	Symmetry	Fundamental(cm^-1)	Harmonic(cm^-1)	Reference	(km mol^-1)	unc.	Reference	Comment	Description
1	A₁	2959		webbook
2	A₁	1342
3	A₁	514
4	B₁	525
5	B₂	3047
6	B₂	544

Bond Type	Count
C-Zn	1
H-C	2

Atom 1	Atom 2
Zn1	C2
C2	H3
C2	H4

State	Config	State description	Conf description	Exp. min.	Dipole (Debye)				Reference	comment	Point Group	Components
State	Config	State description	Conf description	Exp. min.	x	y	z	total	Reference	comment	Point Group	dipole	quadrupole
1	1	³B₁	C_2v	True							C_2v	1	2
2	1	¹A₁	C_2v	True							C_2v	1	2
2	2	¹A^'	C_s	False							C_s	2	3

State	Config	State description	Conf description	Exp. min.	Quadrupole (D Å)			Reference	comment	Point Group	Components
State	Config	State description	Conf description	Exp. min.	xx	yy	zz	Reference	comment	Point Group	dipole	quadrupole
1	1	³B₁	C_2v	True						C_2v	1	2
2	1	¹A₁	C_2v	True						C_2v	1	2
2	2	¹A^'	C_s	False						C_s	2	3

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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Experimental data for ZnCH2 (Zinc methylene)

Experimental data for ZnCH₂ (Zinc methylene)