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

using model chemistry: CCD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/3-21G
 hartrees
Energy at 0K-5615.849372
Energy at 298.15K-5615.856330
HF Energy-5615.608228
Nuclear repulsion energy553.839618
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 CCD/3-21G
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' 3234 3144 0.02      
2 A' 1217 1183 17.68      
3 A' 671 653 84.28      
4 A' 523 508 2.35      
5 A' 259 251 0.19      
6 A' 162 158 0.01      
7 A" 1206 1172 31.73      
8 A" 688 669 71.35      
9 A" 187 182 0.55      

Unscaled Zero Point Vibrational Energy (zpe) 4072.9 cm-1
Scaled (by 0.9723) Zero Point Vibrational Energy (zpe) 3960.1 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 CCD/3-21G
ABC
0.07607 0.03813 0.02590

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.253 0.584 0.000
H2 -1.145 1.199 0.000
Cl3 1.198 1.804 0.000
Br4 -0.253 -0.505 1.662
Br5 -0.253 -0.505 -1.662

Atom - Atom Distances (Å)
  C1 H2 Cl3 Br4 Br5
C11.08421.89571.98651.9865
H21.08422.41982.54212.5421
Cl31.89572.41983.19343.1934
Br41.98652.54213.19343.3231
Br51.98652.54213.19343.3231

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 105.324 H2 C1 Br4 108.134
H2 C1 Br5 108.134 Cl3 C1 Br4 110.661
Cl3 C1 Br5 110.661 Br4 C1 Br5 113.528
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability