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

using model chemistry: MP4/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-5615.858303
Energy at 298.15K-5615.865204
HF Energy-5615.607380
Nuclear repulsion energy551.258441
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 MP4/3-21G
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' 3208 3111        
2 A' 1193 1157        
3 A' 642 622        
4 A' 511 495        
5 A' 252 244        
6 A' 160 155        
7 A" 1188 1152        
8 A" 670 649        
9 A" 183 177        

Unscaled Zero Point Vibrational Energy (zpe) 4002.1 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 3881.2 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 MP4/3-21G
ABC
0.07525 0.03780 0.02566

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.256 0.586 0.000
H2 -1.145 1.209 0.000
Cl3 1.213 1.809 0.000
Br4 -0.256 -0.507 1.669
Br5 -0.256 -0.507 -1.669

Atom - Atom Distances (Å)
  C1 H2 Cl3 Br4 Br5
C11.08621.91131.99441.9944
H21.08622.43312.55342.5534
Cl31.91132.43313.20973.2097
Br41.99442.55343.20973.3371
Br51.99442.55343.20973.3371

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 105.176 H2 C1 Br4 108.332
H2 C1 Br5 108.332 Cl3 C1 Br4 110.517
Cl3 C1 Br5 110.517 Br4 C1 Br5 113.573
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability