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Experimental data for AsH2+ (Arsenic dihydride cation)

22 02 02 11 45
INChI INChIKey SMILES IUPAC name
InChI=1S/AsH2/h1H2 WLQSSCFYCXIQDZ-UHFFFAOYSA-N [AsH2]
State Conformation
2A1 C2V
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) enthalpy of formation 167.73 1.30 kJ mol-1 1993Jor/Rob:215
Hfg(0K) enthalpy of formation 171.29 1.30 kJ mol-1 1993Jor/Rob:215
Entropy (298.15K) entropy 225.19   J K-1 mol-1 1993Jor/Rob:215
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 10.03   kJ mol-1 1993Jor/Rob:215
Heat Capacity (298.15K) heat capacity 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) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference
1 A1 2097   2007He/Clo:154312      
2 A1 984   2007He/Clo:154312      

Calculated vibrational frequencies for AsH2+ (Arsenic dihydride cation).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment

Calculated rotational constants for AsH2+ (Arsenic dihydride cation).
Product of moments of inertia moments of inertia
amu3Å6   0gm3 cm6
Geometric Data
picture of Arsenic dihydride cation

Point Group C2v


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 bond lengths
Distances in Å
 

Calculated geometries for AsH2+ (Arsenic dihydride cation).

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
0 2   2A1
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
State Config State description Conf description Exp. min. Dipole (Debye) Reference comment Point Group Components
x y z total dipole quadrupole
1 1 2A1 C2v True           C2v 1 2
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for AsH2+ (Arsenic dihydride cation).
Electric quadrupole moment quadrupole
State Config State description Conf description Exp. min. Quadrupole (D Å) Reference comment Point Group Components
xx yy zz dipole quadrupole
1 1 2A1 C2v True       C2v 1 2

Calculated electric quadrupole moments for AsH2+ (Arsenic dihydride cation).

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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