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All results from a given calculation for CH2BrCl (Methane, bromochloro-)

using model chemistry: HF/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-34.424764
Energy at 298.15K-34.430094
HF Energy-34.424764
Nuclear repulsion energy34.071818
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 HF/CEP-121G
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' 3300 3012 13.71      
2 A' 1561 1424 1.59      
3 A' 1391 1269 103.20      
4 A' 750 684 138.32      
5 A' 630 575 28.57      
6 A' 236 215 0.68      
7 A" 3418 3119 1.42      
8 A" 1261 1150 0.57      
9 A" 925 844 3.29      

Unscaled Zero Point Vibrational Energy (zpe) 6735.6 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 6146.2 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 HF/CEP-121G
ABC
0.94710 0.06693 0.06327

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.042 0.000
Br2 0.872 -0.724 0.000
Cl3 -1.830 0.939 0.000
H4 0.299 1.554 0.895
H5 0.299 1.554 -0.895

Atom - Atom Distances (Å)
  C1 Br2 Cl3 H4 H5
C11.96921.83261.07351.0735
Br21.96923.17202.51282.5128
Cl31.83263.17202.38982.3898
H41.07352.51282.38981.7902
H51.07352.51282.38981.7902

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 113.048 Br2 C1 H4 107.682
Br2 C1 H5 107.682 Cl3 C1 H4 107.771
Cl3 C1 H5 107.771 H4 C1 H5 112.991
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.587      
2 Br 0.126      
3 Cl -0.024      
4 H 0.242      
5 H 0.242      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.556 1.763 0.000 2.352
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.855 2.149 0.000
y 2.149 -31.550 0.000
z 0.000 0.000 -33.539
Traceless
 xyz
x -5.311 2.149 0.000
y 2.149 4.147 0.000
z 0.000 0.000 1.164
Polar
3z2-r22.328
x2-y2-6.305
xy2.149
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.234 -1.965 0.000
y -1.965 5.260 0.000
z 0.000 0.000 2.354


<r2> (average value of r2) Å2
<r2> 70.977
(<r2>)1/2 8.425