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Experimental data for ClNO (Nitrosyl chloride)

22 02 02 11 45
Other names
Nitrogen chloride oxide (NOCl); Nitrogen oxide chloride (NOCl); Nitrogen oxychloride; Nitrogen oxychloride (NOCl); Nitrosyl chloride; Nitrosyl chloride ((NO)Cl);
INChI INChIKey SMILES IUPAC name
InChI=1S/ClNO/c1-2-3 VPCDQGACGWYTMC-UHFFFAOYSA-N O=NCl Nitrosyl chloride
State Conformation
1A' CS
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 52.70 0.42 kJ mol-1 Gurvich
Hfg(0K) enthalpy of formation 54.60 0.42 kJ mol-1 Gurvich
Entropy (298.15K) entropy 261.58   J K-1 mol-1 Gurvich
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 11.36   kJ mol-1 Gurvich
Heat Capacity (298.15K) heat capacity 44.62   J K-1 mol-1 Gurvich
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 A' 1800   Shim      
2 A' 596   Shim      
3 A' 332   Shim      

vibrational zero-point energy: 1363.7 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for ClNO (Nitrosyl chloride).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
2.90938 0.19176 0.17991 1983Caz/Esp:165 A from B and C

Calculated rotational constants for ClNO (Nitrosyl chloride).
Product of moments of inertia moments of inertia
47728.1amu3Å6   2.18545622781234E-115gm3 cm6
Geometric Data
picture of Nitrosyl chloride

Point Group Cs


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
rNCl 1.975   1 2 1976Hellwege(II/7)
rNO 1.139   2 3 1976Hellwege(II/7)
aONCl 113.3 1 2 3 1976Hellwege(II/7)

Cartesians
Atom x (Å) y (Å) z (Å)
Cl1 -0.5312 -0.9298 0.0000
N2 0.0000 0.9724 0.0000
O3 1.1287 1.1250 0.0000

Atom - Atom Distances bond lengths
Distances in Å
  Cl1 N2 O3
Cl1   1.97502.6415
N2 1.9750   1.1390
O3 2.64151.1390  

Calculated geometries for ClNO (Nitrosyl chloride).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle
Cl1 N2 O3 113.300

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
N=O 1
N-Cl 1

Connectivity
Atom 1 Atom 2
Cl1 N2
N2 O3
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A'

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
10.900 0.030     webbook
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 1A' Cs True       1.866 NSRDS-NBS10 μa = 1.86 ± 0.02. From calcs μ- μa = 0.006. MW Cs 2 3
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 ClNO (Nitrosyl chloride).
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 1A' Cs True       Cs 2 3

Calculated electric quadrupole moments for ClNO (Nitrosyl chloride).

References
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squib reference DOI
1976Hellwege(II/7) Hellwege, KH and AM Hellwege (ed.). Landolt-Bornstein: Group II: Atomic and Molecular Physics Volume 7: Structure Data of Free Polyatomic Molecules. Springer-Verlag. Berlin. 1976.  
1983Caz/Esp:165 G Cazzoli "EQUILIBRIUM STRUCTURE AND FORCE-FIELD OF NITROSYL CHLORIDE" J. Mol. Spect. 97(1) 165-185, 1983 10.1016/0022-2852(83)90343-0
Gurvich Gurvich, L.V.; Veyts, I. V.; Alcock, C. B., Thermodynamic Properties of Individual Substances, Fouth Edition, Hemisphere Pub. Co., New York, 1989  
NSRDS-NBS10 R. D. Nelson Jr., D. R. Lide, A. A. Maryott "Selected Values of electric dipole moments for molecules in the gas phase" NSRDS-NBS10, 1967 10.6028/NBS.NSRDS.10
Shim Shimanouchi, T. , Tables of Molecular Vibrational Frequencies, Consolidated Volu 10.6028/NBS.NSRDS.39
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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