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: CCSD=FULL/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD=FULL/cc-pVQZ
 hartrees
Energy at 0K-3071.910713
Energy at 298.15K-3071.916037
HF Energy-3071.030064
Nuclear repulsion energy220.267525
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 CCSD=FULL/cc-pVQZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3174 3174 3.39      
2 A' 1487 1487 0.05      
3 A' 1291 1291 49.49      
4 A' 791 791 82.90      
5 A' 652 652 16.62      
6 A' 235 235 0.26      
7 A" 3253 3253 0.80      
8 A" 1187 1187 0.01      
9 A" 881 881 2.09      

Unscaled Zero Point Vibrational Energy (zpe) 6474.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6474.9 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 CCSD=FULL/cc-pVQZ
ABC
0.99676 0.07153 0.06760

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.014 0.000
Br2 0.835 -0.712 0.000
Cl3 -1.756 0.927 0.000
H4 0.319 1.529 0.891
H5 0.319 1.529 -0.891

Atom - Atom Distances (Å)
  C1 Br2 Cl3 H4 H5
C11.91721.75841.07761.0776
Br21.91723.06582.46622.4662
Cl31.75843.06582.33722.3372
H41.07762.46622.33721.7825
H51.07762.46622.33721.7825

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 112.975 Br2 C1 H4 107.544
Br2 C1 H5 107.544 Cl3 C1 H4 108.611
Cl3 C1 H5 108.611 H4 C1 H5 111.599
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability