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

Property	Value	Uncertainty	units	Reference	Comment
Hfg(298.15K)	167.73	1.30	kJ mol-1	1993Jor/Rob:215
Hfg(0K)	171.29	1.30	kJ mol-1	1993Jor/Rob:215
Entropy (298.15K)	225.19		J K-1 mol-1	1993Jor/Rob:215
Integrated Heat Capacity (0 to 298.15K)	10.03		kJ mol-1	1993Jor/Rob:215
Heat Capacity (298.15K)	35.10		J K-1 mol-1	1993Jor/Rob:215

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	A1	2097	2007He/Clo:154312
2	A1	984	2007He/Clo:154312

Calculated vibrational frequencies for AsH₂ (Arsenic dihydride).

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

A	B	C	reference	comment

Calculated rotational constants for AsH₂ (Arsenic dihydride).

Product of moments of inertia
	amu3Å6		0	gm3 cm6

Geometric Data

Point Group C_2v

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

Cartesians

Atom	x (Å)	y (Å)	z (Å)

Atom - Atom Distances
Distances in Å
Calculated geometries for AsH₂ (Arsenic dihydride).

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

Bond Type	Count
H-As	2

Connectivity

Atom 1	Atom 2
As1	H2
As1	H3

Electronic energy levels (cm^-1)

Energy (cm-1)	Degeneracy	reference	description

Dipole, Quadrupole and Polarizability
Electric dipole moment
Calculated electric dipole moments for AsH₂ (Arsenic dihydride).
Electric quadrupole moment
Calculated electric quadrupole moments for AsH₂ (Arsenic dihydride).

References
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squib	reference	DOI
1993Jor/Rob:215	AS Jordan, A Robertson, Jr "Thermodynamic properties of AsH3 and its subhydrides" Journal of Materials Science: Materials in Electronics, 4 (1993) 215-224	10.1007/BF00224744
2007He/Clo:154312	S-G He, D.J. Clouthier "Laser spectroscopy and dynamics of the jet-cooled AsH2 free radical" J. Chem. Phys. 126, 154312 (2007)	10.1063/1.2721544

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