CCCBDB listing of experimental data page 2

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Property	Value	Uncertainty	units	Reference
Hfg(298.15K)	-393.51	0.13	kJ mol^-1	CODATA
Hfg(0K)	-393.14	0.13	kJ mol^-1	CODATA
Entropy (298.15K)	213.79	0.01	J K^-1 mol^-1	CODATA
Integrated Heat Capacity (0 to 298.15K)	9.36	0.00	kJ mol^-1	CODATA
Heat Capacity (298.15K)	37.13		J K^-1 mol^-1	Gurvich

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_g	1333	1351	1945Herzberg				unperturbed value	CO₂ s-stretch
2	Σ_u	2349	2396	1945Herzberg	665.0		1969Dav/Orv:163		CO₂ a-stretch
3	Π_u	667	672	1945Herzberg	54.2		1982vibint		bend

Description	Value	unc.	Connectivity				Reference	Comment
Description	Value	unc.	Atom 1	Atom 2	Atom 3	Atom 4	Reference	Comment
rCO	1.162		1	2			1966Herzberg
aOCO	180		2	1	3		1966Herzberg

Atom	x (Å)	y (Å)	z (Å)
C1	0.0000	0.0000	0.0000
O2	0.0000	0.0000	1.1621
O3	0.0000	0.0000	-1.1621

	C1	O2	O3
C1		1.1621	1.1621
O2	1.1621		2.3242
O3	1.1621	2.3242

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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Energy (cm^-1)	Degeneracy	reference	description
0	1		¹Σ_g
46000	1	1966Herzberg

Experimental data for CO2- (Carbon dioxide anion)

Experimental data for CO₂^- (Carbon dioxide anion)