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Experimental data for CH3OCl (methyl hypochlorite)

22 02 02 11 45
INChI INChIKey SMILES IUPAC name
InChI=1S/CH3ClO/c1-3-2/h1H3 UCFFGYASXIPWPD-UHFFFAOYSA-N COCl
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
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

Calculated vibrational frequencies for CH3OCl (methyl hypochlorite).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
1.40312 0.21004 0.18915 1964Rig/But:2109

Calculated rotational constants for CH3OCl (methyl hypochlorite).
Product of moments of inertia moments of inertia
85937.27amu3Å6   3.93504333053437E-115gm3 cm6
Geometric Data
picture of methyl hypochlorite

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
rCH 1.086 0.018 3 5 1976Hellwege(II/7) out of plane H
rCH 1.111 0.018 3 4 1976Hellwege(II/7) in plane CH
rOCl 1.674 0.019 1 2 1976Hellwege(II/7)
rCO 1.389 0.028 1 3 1976Hellwege(II/7)
aHCH 110.5 1.8 4 3 5 1976Hellwege(II/7) in plane to out of plane
aHCH 108.3 1.7 5 3 6 1976Hellwege(II/7) out of plane to out of plane
aCOCl 112.8 2.1 2 1 3 1976Hellwege(II/7)

Cartesians
Atom x (Å) y (Å) z (Å)
O1 -0.5592 0.5972 0.0000
Cl2 0.9600 -0.1063 0.0000
C3 -1.5856 -0.3385 0.0000
H4 -2.5193 0.2154 0.0000
H5 -1.5169 -0.9859 -0.9010
H6 -1.5169 -0.9859 0.9010

Atom - Atom Distances bond lengths
Distances in Å
  O1 Cl2 C3 H4 H5 H6
O1   1.67411.38891.99692.05802.0580
Cl2 1.6741   2.55623.49412.77852.7785
C3 1.38892.5562   1.08561.11161.1116
H4 1.99693.49411.0856   1.80551.8055
H5 2.05802.77851.11161.8055   1.8020
H6 2.05802.77851.11161.80551.8020  

Calculated geometries for CH3OCl (methyl hypochlorite).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
O1 C3 H4 106.969 O1 C3 H5 110.283
O1 C3 H6 110.283 Cl2 O1 C3 112.800
H4 C3 H5 110.508 H4 C3 H6 110.508
H5 C3 H6 108.298

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
C-O 1
H-C 3
O-Cl 1

Connectivity
Atom 1 Atom 2
O1 Cl2
O1 C3
C3 H4
C3 H5
C3 H6
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
10.390 0.020     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   1.146 1.373 1.788 1976Suz/Gua:1242 μa=1.373± 0.004D μb=1.146+_0.007D mutot=1.788± 0.008D 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 CH3OCl (methyl hypochlorite).
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 CH3OCl (methyl hypochlorite).

References
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squib reference DOI
1964Rig/But:2109 JS Rigden, SS Butcher "Microwave Spectrum of Methyl Hypochlorite" J. Chem. Phys. 40(8), 2109, 1964 10.1063/1.1725479
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.  
1976Suz/Gua:1242 M.Suzuki, A Guanieri "Microwave Zeeman Spectrum, Electric Dipole Moment and Nuclear Quarupole Tensor of Mehtly Hypochlorite and d3-Methyl Hypochlorite" Z. Naturforsch. 31 a 1242-1258 [1976] 10.1515/zna-1976-1016
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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