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

using model chemistry: B3LYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3LYP/6-31+G**
 hartrees
Energy at 0K-7793.191999
Energy at 298.15K-7793.203772
HF Energy-7793.191999
Nuclear repulsion energy974.062598
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 B3LYP/6-31+G**
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 3061 2952 2.88      
2 A1 1425 1374 8.42      
3 A1 1060 1022 7.24      
4 A1 414 400 4.96      
5 A1 218 210 0.01      
6 A2 356 343 0.00      
7 E 3149 3036 2.19      
7 E 3149 3036 2.19      
8 E 1493 1440 4.27      
8 E 1493 1440 4.27      
9 E 1099 1060 50.84      
9 E 1099 1060 50.81      
10 E 609 587 96.59      
10 E 609 587 96.52      
11 E 287 277 2.43      
11 E 287 277 2.43      
12 E 152 147 0.00      
12 E 152 147 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 10056.7 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 9696.7 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 B3LYP/6-31+G**
ABC
0.03518 0.03518 0.02092

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.471
C2 0.000 0.000 1.986
Br3 0.000 1.841 -0.208
Br4 1.594 -0.921 -0.208
Br5 -1.594 -0.921 -0.208
H6 0.000 -1.030 2.352
H7 0.892 0.515 2.352
H8 -0.892 0.515 2.352

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.51531.96211.96211.96212.14482.14482.1448
C21.51532.86392.86392.86391.09281.09281.0928
Br31.96212.86393.18883.18883.84633.01793.0179
Br41.96212.86393.18883.18883.01793.01793.8463
Br51.96212.86393.18883.18883.01793.84633.0179
H62.14481.09283.84633.01793.01791.78331.7833
H72.14481.09283.01793.01793.84631.78331.7833
H82.14481.09283.01793.84633.01791.78331.7833

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 109.582 C1 C2 H7 109.582
C1 C2 H8 109.582 C2 C1 Br3 110.230
C2 C1 Br4 110.230 C2 C1 Br5 110.230
Br3 C1 Br4 108.702 Br3 C1 Br5 108.702
Br4 C1 Br5 108.702 H6 C2 H7 109.360
H6 C2 H8 109.360 H7 C2 H8 109.360
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.348      
2 C -0.316      
3 Br 0.032      
4 Br 0.032      
5 Br 0.032      
6 H 0.189      
7 H 0.189      
8 H 0.189      


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 1.724 1.724
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -68.142 0.000 0.000
y 0.000 -68.142 0.000
z 0.000 0.000 -64.841
Traceless
 xyz
x -1.650 0.000 0.000
y 0.000 -1.650 0.000
z 0.000 0.000 3.300
Polar
3z2-r26.600
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 13.462 0.000 0.000
y 0.000 13.461 0.000
z 0.000 0.000 10.575


<r2> (average value of r2) Å2
<r2> 447.080
(<r2>)1/2 21.144