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Experimental data for ClNO2 (Nitryl chloride)

22 02 02 11 45
Other names
Nitryl chloride;
INChI INChIKey SMILES IUPAC name
InChI=1S/ClNO2/c1-2(3)4 HVZWVEKIQMJYIK-UHFFFAOYSA-N ClN(=O)=O Nitryl chloride
State Conformation
1A1 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 12.50 1.00 kJ mol-1 Gurvich
Hfg(0K) enthalpy of formation 17.89 1.00 kJ mol-1 Gurvich
Entropy (298.15K) entropy 272.23   J K-1 mol-1 Gurvich
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 12.22   kJ mol-1 Gurvich
Heat Capacity (298.15K) heat capacity 53.35   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 A1 1267   VEEL5      
2 A1 793   VEEL5      
3 A1 364   VEEL5      
4 B1 652   VEEL5      
5 B2 1684   VEEL5      
6 B2 408   VEEL5      

vibrational zero-point energy: 2583.8 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for ClNO2 (Nitryl chloride).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
0.44331 0.17264 0.12407 1994Orp/Mor:315

Calculated rotational constants for ClNO2 (Nitryl chloride).
Product of moments of inertia moments of inertia
504523.9amu3Å6   2.31020084004937E-114gm3 cm6
Geometric Data
picture of Nitryl chloride

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
rNCl 1.840   1 2 1976Hellwege(II/7)
rNO 1.202   2 3 1976Hellwege(II/7)
aONO 130.6 3 2 4 1976Hellwege(II/7)
aONCl 114.7 1 2 3 1976Hellwege(II/7) by symmetry

Cartesians
Atom x (Å) y (Å) z (Å)
Cl1 0.0000 0.0000 1.8300
N2 0.0000 0.0000 0.0000
O3 0.0000 1.0929 -0.5004
O4 0.0000 -1.0929 -0.5004

Atom - Atom Distances bond lengths
Distances in Å
  Cl1 N2 O3 O4
Cl1   1.83002.57392.5739
N2 1.8300   1.20201.2020
O3 2.57391.2020   2.1858
O4 2.57391.20202.1858  

Calculated geometries for ClNO2 (Nitryl chloride).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
Cl1 N2 O3 114.600 Cl1 N2 O4 114.600
O3 N2 O4 130.800

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=O 1
O-Cl 1

Connectivity
Atom 1 Atom 2
Cl1 N2
N2 O3
N2 O4
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A1

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
11.840       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 1A1 C2v True       0.530 NSRDS-NBS10 MW 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 ClNO2 (Nitryl 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 1A1 C2v True       C2v 1 2

Calculated electric quadrupole moments for ClNO2 (Nitryl 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.  
1994Orp/Mor:315 Orphal, J.; Morillon-Chapey, Mirelle.; Guelachvili, G. "The High-Resolution Ifrared Spectrum of Nitryl Chloride: Rotational Analysis of the 35ClNO2 (nu)4 Band around 6 micro-m." Journal of Molecular Spectroscopy. 165, 315-322 (1994) 10.1006/jmsp.1994.1135
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
VEEL5 M.E. Jacox, Vibrational and Electronic Energy Levels of Polyatomic Transient Molecules, J. Phys. Chem.Ref. Data, Monograph 3 (1994) (updated data in NIST Chemistry Webbook - http://webbook.nist.gov/chemistry/  
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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