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All results from a given calculation for CHClBr2 (Methane, dibromochloro-)

using model chemistry: CCSD(T)/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 CCSD(T)/6-31G*
 hartrees
Energy at 0K-5638.225524
Energy at 298.15K-5638.232610
HF Energy-5637.683510
Nuclear repulsion energy572.203830
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(T)/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' 3208 3086        
2 A' 1261 1214        
3 A' 782 752        
4 A' 569 547        
5 A' 283 272        
6 A' 174 167        
7 A" 1189 1144        
8 A" 664 639        
9 A" 206 199        

Unscaled Zero Point Vibrational Energy (zpe) 4167.2 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 4009.3 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 CCSD(T)/6-31G*
ABC
0.08168 0.04076 0.02776

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.235 0.619 0.000
H2 -1.168 1.178 0.000
Cl3 1.118 1.754 0.000
Br4 -0.235 -0.496 1.606
Br5 -0.235 -0.496 -1.606

Atom - Atom Distances (Å)
  C1 H2 Cl3 Br4 Br5
C11.08801.76511.95541.9554
H21.08802.35732.50052.5005
Cl31.76512.35733.07723.0772
Br41.95542.50053.07723.2127
Br51.95542.50053.07723.2127

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 109.107 H2 C1 Br4 107.023
H2 C1 Br5 107.023 Cl3 C1 Br4 111.501
Cl3 C1 Br5 111.501 Br4 C1 Br5 110.472
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability