Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)

Property	Value	Uncertainty	units	Reference	Comment

Information can also be found for this species in the NIST Chemistry Webbook

Vibrational levels (cm^-1)

Mode Number	Symmetry	Frequency (cm-1)	Frequency Reference	Intensity (km mol-1)	Int. unc.	Intensity Reference	Comment
1	Σ	1035	webbook				omega e

vibrational zero-point energy: 517.7 cm^-1
Calculated vibrational frequencies for CSe^- (Carbon monoselenide anion).

Rotational Constants (cm^-1)
See section I.F.4 to change rotational constant units

A	B	C	reference	comment
	0.57500		webbook

Calculated rotational constants for CSe^- (Carbon monoselenide anion).

Product of moments of inertia
29.31762	amu Å2		4.868381E-39	gm cm2

Geometric Data

Point Group C_∞v

Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees

Description	Value	unc.	Connectivity				Reference	Comment
			Atom 1	Atom 2	Atom 3	Atom 4
rCSe	1.676	0.000	1	2			NISTdiatomic	re

Cartesians

Atom	x (Å)	y (Å)	z (Å)
C1	0.0000	0.0000	0.0000
Se2	0.0000	0.0000	1.6762

Atom - Atom Distances
Distances in Å

	C1	Se2
C1		1.6762
Se2	1.6762

Calculated geometries for CSe^- (Carbon monoselenide anion).

Bond descriptions
Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond

Bond Type	Count
C-Se	1

Connectivity

Atom 1	Atom 2
C1	Se2

Electronic energy levels (cm^-1)

Energy (cm-1)	Degeneracy	reference	description
0	1

Ionization Energies (eV)

Ionization Energy	I.E. unc.	vertical I.E.	v.I.E. unc.	Electron Affinity	E.A. unc.	reference
10.800	0.500					webbook

Dipole, Quadrupole and Polarizability
Electric dipole moment
Calculated electric dipole moments for CSe^- (Carbon monoselenide anion).
Electric quadrupole moment
Calculated electric quadrupole moments for CSe^- (Carbon monoselenide anion).

References
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squib	reference	DOI
NISTdiatomic	NIST Diatomic Spectral Database (www.physics.nist.gov/PhysRefData/MolSpec/Diatomic/index.html)
webbook	NIST Chemistry Webbook (http://webbook.nist.gov/chemistry)

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