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/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-3068.833089
Energy at 298.15K-3068.838384
HF Energy-3068.410342
Nuclear repulsion energy217.460429
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/6-31+G**
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' 3198 3023 5.52      
2 A' 1505 1423 0.85      
3 A' 1320 1248 77.15      
4 A' 781 738 87.01      
5 A' 617 583 25.89      
6 A' 231 218 0.27      
7 A" 3284 3104 0.15      
8 A" 1192 1127 0.01      
9 A" 892 843 2.24      

Unscaled Zero Point Vibrational Energy (zpe) 6509.6 cm-1
Scaled (by 0.9454) Zero Point Vibrational Energy (zpe) 6154.2 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 QCISD/6-31+G**
ABC
0.98664 0.06951 0.06576

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.028 0.000
Br2 0.839 -0.732 0.000
Cl3 -1.767 0.963 0.000
H4 0.334 1.536 0.897
H5 0.334 1.536 -0.897

Atom - Atom Distances (Å)
  C1 Br2 Cl3 H4 H5
C11.94981.76851.08321.0832
Br21.94983.10902.49002.4900
Cl31.76853.10902.35572.3557
H41.08322.49002.35571.7931
H51.08322.49002.35571.7931

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 113.378 Br2 C1 H4 106.862
Br2 C1 H5 106.862 Cl3 C1 H4 109.017
Cl3 C1 H5 109.017 H4 C1 H5 111.727
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability