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: LSDA/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/3-21G*
 hartrees
Energy at 0K-570.822179
Energy at 298.15K-570.825818
HF Energy-570.822179
Nuclear repulsion energy103.751975
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 LSDA/3-21G*
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' 3056 3001 7.43      
2 A' 2949 2896 17.99      
3 A' 1514 1486 15.83      
4 A' 1418 1393 0.57      
5 A' 1134 1113 10.70      
6 A' 973 955 14.59      
7 A' 650 638 6.05      
8 A' 353 346 6.32      
9 A" 3022 2967 28.91      
10 A" 1445 1419 17.58      
11 A" 1125 1104 0.27      
12 A" 267 262 4.66      

Unscaled Zero Point Vibrational Energy (zpe) 8951.5 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 8790.3 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 LSDA/3-21G*
ABC
1.31779 0.20181 0.18120

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.838 0.000
Cl2 -0.822 -0.708 0.000
C3 1.430 0.599 0.000
H4 1.844 1.624 0.000
H5 1.775 0.061 0.903
H6 1.775 0.061 -0.903

Atom - Atom Distances (Å)
  O1 Cl2 C3 H4 H5 H6
O11.75091.45002.00502.13732.1373
Cl21.75092.60443.54242.85512.8551
C31.45002.60441.10501.10641.1064
H42.00503.54241.10501.80611.8061
H52.13732.85511.10641.80611.8069
H62.13732.85511.10641.80611.8069

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 102.551 O1 C3 H5 112.765
O1 C3 H6 112.765 Cl2 O1 C3 108.543
H4 C3 H5 109.515 H4 C3 H6 109.515
H5 C3 H6 109.483
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.362      
2 Cl 0.082      
3 C -0.439      
4 H 0.258      
5 H 0.230      
6 H 0.230      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.100 -0.100 0.000 2.102
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.030 2.149 0.000
y 2.149 -24.192 0.000
z 0.000 0.000 -25.208
Traceless
 xyz
x 2.671 2.149 0.000
y 2.149 -0.573 0.000
z 0.000 0.000 -2.097
Polar
3z2-r2-4.195
x2-y22.163
xy2.149
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.357 1.348 0.000
y 1.348 3.957 0.000
z 0.000 0.000 2.522


<r2> (average value of r2) Å2
<r2> 68.908
(<r2>)1/2 8.301