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 CH2BrCl (Methane, bromochloro-)

using model chemistry: QCISD/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31G**
 hartrees
Energy at 0K-3068.814951
Energy at 298.15K-3068.820250
HF Energy-3068.395228
Nuclear repulsion energy217.542759
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 QCISD/6-31G**
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' 3205 3017 7.00      
2 A' 1515 1426 0.91      
3 A' 1311 1234 66.57      
4 A' 785 739 80.29      
5 A' 619 582 25.91      
6 A' 235 222 0.28      
7 A" 3292 3099 0.13      
8 A" 1202 1131 0.00      
9 A" 881 829 2.24      

Unscaled Zero Point Vibrational Energy (zpe) 6522.1 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 6139.9 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 QCISD/6-31G**
ABC
0.97809 0.06973 0.06591

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.033 0.000
Br2 0.839 -0.730 0.000
Cl3 -1.766 0.958 0.000
H4 0.335 1.541 0.896
H5 0.335 1.541 -0.896

Atom - Atom Distances (Å)
  C1 Br2 Cl3 H4 H5
C11.95291.76751.08261.0826
Br21.95293.10372.49292.4929
Cl31.76753.10372.35672.3567
H41.08262.49292.35671.7918
H51.08262.49292.35671.7918

picture of Methane, bromochloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Cl3 112.981 Br2 C1 H4 106.892
Br2 C1 H5 106.892 Cl3 C1 H4 109.194
Cl3 C1 H5 109.194 H4 C1 H5 111.697
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability