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: MP2=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-574.628324
Energy at 298.15K-574.632062
HF Energy-573.957506
Nuclear repulsion energy106.683113
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 MP2=FULL/cc-pVTZ
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' 3190 3029 7.32      
2 A' 3085 2929 30.59      
3 A' 1539 1461 8.84      
4 A' 1477 1402 3.51      
5 A' 1208 1147 7.90      
6 A' 1064 1010 49.00      
7 A' 722 686 5.39      
8 A' 376 357 2.54      
9 A" 3161 3001 24.53      
10 A" 1501 1425 7.93      
11 A" 1189 1129 1.36      
12 A" 260 247 2.26      

Unscaled Zero Point Vibrational Energy (zpe) 9386.3 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 8911.4 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 MP2=FULL/cc-pVTZ
ABC
1.39564 0.21326 0.19169

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.808 0.000
Cl2 -0.804 -0.680 0.000
C3 1.402 0.576 0.000
H4 1.838 1.568 0.000
H5 1.712 0.035 0.889
H6 1.712 0.035 -0.889

Atom - Atom Distances (Å)
  O1 Cl2 C3 H4 H5 H6
O11.69101.42061.98922.07792.0779
Cl21.69102.53843.46922.76262.7626
C31.42062.53841.08371.08581.0858
H41.98923.46921.08371.77651.7765
H52.07792.76261.08581.77651.7775
H62.07792.76261.08581.77651.7775

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 104.377 O1 C3 H5 111.295
O1 C3 H6 111.295 Cl2 O1 C3 109.024
H4 C3 H5 109.943 H4 C3 H6 109.943
H5 C3 H6 109.866
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability