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

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-7801.386484
Energy at 298.15K-7801.398220
HF Energy-7801.386484
Nuclear repulsion energy979.564372
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 B1B95/6-311G*
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 3082 2954 3.69      
2 A1 1425 1366 10.35      
3 A1 1082 1038 7.52      
4 A1 415 398 5.62      
5 A1 218 209 0.03      
6 A2 328 314 0.00      
7 E 3172 3041 3.84      
7 E 3172 3041 3.85      
8 E 1490 1429 3.56      
8 E 1490 1429 3.55      
9 E 1099 1053 57.95      
9 E 1099 1053 57.76      
10 E 632 606 98.27      
10 E 632 606 97.95      
11 E 277 266 1.82      
11 E 277 266 1.82      
12 E 149 143 0.00      
12 E 149 143 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 10094.0 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 9676.1 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 B1B95/6-311G*
ABC
0.03558 0.03558 0.02109

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.450
C2 0.000 0.000 1.957
Br3 0.000 1.834 -0.204
Br4 1.588 -0.917 -0.204
Br5 -1.588 -0.917 -0.204
H6 0.000 -1.024 2.326
H7 0.887 0.512 2.326
H8 -0.887 0.512 2.326

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.50691.94711.94711.94712.13692.13692.1369
C21.50692.83452.83452.83451.08871.08871.0887
Br31.94712.83453.17633.17633.81702.98902.9890
Br41.94712.83453.17633.17632.98902.98903.8170
Br51.94712.83453.17633.17632.98903.81702.9890
H62.13691.08873.81702.98902.98901.77431.7743
H72.13691.08872.98902.98903.81701.77431.7743
H82.13691.08872.98903.81702.98901.77431.7743

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 109.783 C1 C2 H7 109.783
C1 C2 H8 109.783 C2 C1 Br3 109.640
C2 C1 Br4 109.640 C2 C1 Br5 109.640
Br3 C1 Br4 109.302 Br3 C1 Br5 109.302
Br4 C1 Br5 109.302 H6 C2 H7 109.158
H6 C2 H8 109.158 H7 C2 H8 109.158
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.444      
2 C -0.602      
3 Br 0.084      
4 Br 0.084      
5 Br 0.084      
6 H 0.264      
7 H 0.264      
8 H 0.264      


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 1.661 1.661
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -67.071 0.000 0.000
y 0.000 -67.071 0.000
z 0.000 0.000 -64.359
Traceless
 xyz
x -1.356 0.000 0.000
y 0.000 -1.356 0.000
z 0.000 0.000 2.711
Polar
3z2-r25.422
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 11.509 0.000 0.000
y 0.000 11.512 0.001
z 0.000 0.001 8.688


<r2> (average value of r2) Å2
<r2> 442.398
(<r2>)1/2 21.033