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

using model chemistry: BLYP/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 BLYP/6-311G**
 hartrees
Energy at 0K-7800.430837
Energy at 298.15K-7800.442305
HF Energy-7800.430837
Nuclear repulsion energy953.556938
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 BLYP/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 2976 2965 2.66      
2 A1 1377 1372 6.51      
3 A1 1000 996 14.45      
4 A1 386 384 6.10      
5 A1 200 200 0.00      
6 A2 306 305 0.00      
7 E 3051 3039 3.92      
7 E 3051 3039 3.93      
8 E 1440 1434 2.69      
8 E 1440 1434 2.69      
9 E 1057 1053 57.21      
9 E 1057 1053 57.19      
10 E 541 538 124.43      
10 E 540 538 124.43      
11 E 266 265 5.38      
11 E 266 265 5.38      
12 E 139 139 0.08      
12 E 139 139 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 9616.0 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 9578.5 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 BLYP/6-311G**
ABC
0.03372 0.03372 0.01995

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.474
C2 0.000 0.000 1.999
Br3 0.000 1.886 -0.209
Br4 1.633 -0.943 -0.209
Br5 -1.633 -0.943 -0.209
H6 0.000 -1.033 2.369
H7 0.894 0.516 2.369
H8 -0.894 0.516 2.369

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.52422.00582.00582.00582.15832.15832.1583
C21.52422.90342.90342.90341.09741.09741.0974
Br32.00582.90343.26633.26633.89453.05353.0535
Br42.00582.90343.26633.26633.05353.05353.8945
Br52.00582.90343.26633.26633.05353.89453.0535
H62.15831.09743.89453.05353.05351.78891.7889
H72.15831.09743.05353.05353.89451.78891.7889
H82.15831.09743.05353.89453.05351.78891.7889

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 109.754 C1 C2 H7 109.754
C1 C2 H8 109.754 C2 C1 Br3 109.918
C2 C1 Br4 109.918 C2 C1 Br5 109.918
Br3 C1 Br4 109.021 Br3 C1 Br5 109.021
Br4 C1 Br5 109.021 H6 C2 H7 109.187
H6 C2 H8 109.187 H7 C2 H8 109.187
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.402      
2 C -0.203      
3 Br 0.056      
4 Br 0.056      
5 Br 0.056      
6 H 0.146      
7 H 0.146      
8 H 0.146      


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 1.735 1.735
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -67.911 0.000 0.000
y 0.000 -67.911 0.000
z 0.000 0.000 -64.788
Traceless
 xyz
x -1.562 0.000 0.000
y 0.000 -1.562 0.000
z 0.000 0.000 3.124
Polar
3z2-r26.247
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 12.468 0.000 0.000
y 0.000 12.468 0.000
z 0.000 0.000 9.269


<r2> (average value of r2) Å2
<r2> 465.125
(<r2>)1/2 21.567