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	Σ	2257		webbook
2	Σ	1907
3	Σ	935
4	Π	581
5	Π	109

Bond Type	Count
C#C	1
C-C	1
C=O	1

Atom 1	Atom 2
C1	C2
C2	C2
C3	O4

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	¹Σ	C_∞v	True							C_∞v	1	1
2	1	³A^'	C_s	True							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	¹Σ	C_∞v	True						C_∞v	1	1
2	1	³A^'	C_s	True						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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squib	reference	DOI
2009Gar/Yac:054312	E Garand, TI Yacovitch, DM Neumark "Slow photoelectron velocit-map imaging spectrsocopy of C3O- and C3S-" Journal of Chemical Physics 131, 054312 (2009)	10.1063/1.3200927
webbook	NIST Chemistry Webbook (http://webbook.nist.gov/chemistry)	10.18434/T4D303

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Experimental data for C3O (Tricarbon monoxide)

Experimental data for C₃O (Tricarbon monoxide)