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 CHClBr2 (Methane, dibromochloro-)

using model chemistry: MP2=FULL/6-311G*

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/6-311G*
 hartrees
Energy at 0K-5644.064356
Energy at 298.15K-5644.071512
HF Energy-5642.675968
Nuclear repulsion energy576.052302
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/6-311G*
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' 3219 3049 0.51      
2 A' 1284 1216 26.01      
3 A' 793 751 120.40      
4 A' 589 557 5.47      
5 A' 292 276 0.06      
6 A' 174 165 0.00      
7 A" 1220 1155 42.60      
8 A" 698 662 105.80      
9 A" 211 200 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 4239.6 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 4015.3 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 MP2=FULL/6-311G*
ABC
0.08293 0.04120 0.02807

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.230 0.596 0.000
H2 -1.162 1.150 0.000
Cl3 1.097 1.751 0.000
Br4 -0.230 -0.493 1.598
Br5 -0.230 -0.493 -1.598

Atom - Atom Distances (Å)
  C1 H2 Cl3 Br4 Br5
C11.08441.75951.93391.9339
H21.08442.33752.47452.4745
Cl31.75952.33753.05813.0581
Br41.93392.47453.05813.1966
Br51.93392.47453.05813.1966

picture of Methane, dibromochloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Cl3 108.204 H2 C1 Br4 106.730
H2 C1 Br5 106.730 Cl3 C1 Br4 111.697
Cl3 C1 Br5 111.697 Br4 C1 Br5 111.473
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability