return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3OCl (methyl hypochlorite)

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-37.538865
Energy at 298.15K-37.542673
HF Energy-37.538865
Nuclear repulsion energy43.120144
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/CEP-121G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3312 2992 26.21      
2 A' 3205 2895 53.49      
3 A' 1640 1481 10.75      
4 A' 1594 1440 15.64      
5 A' 1313 1186 14.02      
6 A' 1150 1039 95.63      
7 A' 793 716 8.50      
8 A' 399 361 2.31      
9 A" 3293 2974 55.20      
10 A" 1611 1456 5.45      
11 A" 1278 1155 4.28      
12 A" 258 233 3.25      

Unscaled Zero Point Vibrational Energy (zpe) 9922.8 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 8964.2 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HF/CEP-121G*
ABC
1.47019 0.21014 0.19049

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.782 0.000
Cl2 -0.808 -0.684 0.000
C3 1.410 0.603 0.000
H4 1.813 1.609 0.000
H5 1.731 0.072 0.890
H6 1.731 0.072 -0.890

Atom - Atom Distances (Å)
  O1 Cl2 C3 H4 H5 H6
O11.67351.42081.99272.07192.0719
Cl21.67352.56383.48212.79492.7949
C31.42082.56381.08351.08491.0849
H41.99273.48211.08351.77731.7773
H52.07192.79491.08491.77731.7796
H62.07192.79491.08491.77731.7796

picture of methyl hypochlorite state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C3 H4 104.639 O1 C3 H5 110.844
O1 C3 H6 110.844 Cl2 O1 C3 111.643
H4 C3 H5 110.094 H4 C3 H6 110.094
H5 C3 H6 110.201
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.388      
2 Cl 0.112      
3 C -0.246      
4 H 0.184      
5 H 0.169      
6 H 0.169      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.030 -0.284 0.000 2.050
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.482 2.233 0.000
y 2.233 -23.928 0.000
z 0.000 0.000 -24.645
Traceless
 xyz
x 2.804 2.233 0.000
y 2.233 -0.864 0.000
z 0.000 0.000 -1.940
Polar
3z2-r2-3.880
x2-y22.446
xy2.233
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.289 1.224 0.000
y 1.224 4.315 0.000
z 0.000 0.000 2.992


<r2> (average value of r2) Å2
<r2> 48.960
(<r2>)1/2 6.997