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All results from a given calculation for CH3CBr3 (1,1,1-tribromoethane)

using model chemistry: wB97X-D/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at wB97X-D/6-31G*
 hartrees
Energy at 0K-7793.176839
Energy at 298.15K-7793.188657
HF Energy-7793.176839
Nuclear repulsion energy 
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 wB97X-D/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 A1 3096 2937 3.17      
2 A1 1450 1375 9.36      
3 A1 1083 1027 5.81      
4 A1 428 406 5.44      
5 A1 227 215 0.06      
6 A2 319 303 0.00      
7 E 3190 3026 2.34      
7 E 3190 3026 2.33      
8 E 1517 1439 4.50      
8 E 1517 1439 4.50      
9 E 1116 1058 49.42      
9 E 1116 1058 49.58      
10 E 661 627 80.74      
10 E 661 627 80.29      
11 E 286 271 1.53      
11 E 286 271 1.54      
12 E 159 151 0.03      
12 E 159 151 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 10229.1 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 9702.3 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 wB97X-D/6-31G*
ABC
0.03566 0.03566 0.02123

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.461
C2 0.000 0.000 1.979
Br3 0.000 1.829 -0.206
Br4 1.584 -0.914 -0.206
Br5 -1.584 -0.914 -0.206
H6 0.000 -1.030 2.347
H7 0.892 0.515 2.347
H8 -0.892 0.515 2.347

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.51891.94681.94681.94682.14882.14882.1488
C21.51892.85022.85022.85021.09311.09311.0931
Br31.94682.85023.16793.16793.83273.00673.0067
Br41.94682.85023.16793.16793.00673.00673.8327
Br51.94682.85023.16793.16793.00673.83273.0067
H62.14881.09313.83273.00673.00671.78341.7834
H72.14881.09313.00673.00673.83271.78341.7834
H82.14881.09313.00673.83273.00671.78341.7834

picture of 1,1,1-tribromoethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.622 C1 C2 H7 109.622
C1 C2 H8 109.622 C2 C1 Br3 110.038
C2 C1 Br4 110.038 C2 C1 Br5 110.038
Br3 C1 Br4 108.899 Br3 C1 Br5 108.899
Br4 C1 Br5 108.899 H6 C2 H7 109.321
H6 C2 H8 109.321 H7 C2 H8 109.321
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.073      
2 C -0.476      
3 Br -0.028      
4 Br -0.028      
5 Br -0.028      
6 H 0.211      
7 H 0.211      
8 H 0.211      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.671 1.671
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -66.415 0.000 0.000
y 0.000 -66.415 0.000
z 0.000 0.000 -63.533
Traceless
 xyz
x -1.441 0.000 0.000
y 0.000 -1.441 0.000
z 0.000 0.000 2.883
Polar
3z2-r25.765
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.333 0.000 0.000
y 0.000 11.330 0.000
z 0.000 0.000 8.641


<r2> (average value of r2) Å2
<r2> 440.567
(<r2>)1/2 20.990