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

using model chemistry: B3LYP/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 B3LYP/6-311G*
 hartrees
Energy at 0K-7800.463447
Energy at 298.15K-7800.475114
HF Energy-7800.463447
Nuclear repulsion energy966.697042
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/6-311G*
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 3057 2954 3.94      
2 A1 1431 1383 8.18      
3 A1 1047 1012 9.09      
4 A1 405 392 5.52      
5 A1 213 205 0.00      
6 A2 325 314 0.00      
7 E 3136 3030 4.63      
7 E 3136 3030 4.64      
8 E 1495 1444 3.38      
8 E 1495 1444 3.39      
9 E 1102 1064 56.70      
9 E 1102 1064 56.68      
10 E 596 576 107.77      
10 E 596 575 107.75      
11 E 278 269 3.26      
11 E 278 269 3.26      
12 E 147 143 0.01      
12 E 147 143 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 9991.6 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 9654.9 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/6-311G*
ABC
0.03465 0.03465 0.02052

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

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 1.978
Br3 0.000 1.859 -0.206
Br4 1.610 -0.930 -0.206
Br5 -1.610 -0.930 -0.206
H6 0.000 -1.026 2.348
H7 0.888 0.513 2.348
H8 -0.888 0.513 2.348

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.51651.97551.97551.97552.14812.14812.1481
C21.51652.86832.86832.86831.09091.09091.0909
Br31.97552.86833.22033.22033.85383.02153.0215
Br41.97552.86833.22033.22033.02153.02153.8538
Br51.97552.86833.22033.22033.02153.85383.0215
H62.14811.09093.85383.02153.02151.77691.7769
H72.14811.09093.02153.02153.85381.77691.7769
H82.14811.09093.02153.85383.02151.77691.7769

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 109.874 C1 C2 H7 109.874
C1 C2 H8 109.874 C2 C1 Br3 109.752
C2 C1 Br4 109.752 C2 C1 Br5 109.752
Br3 C1 Br4 109.189 Br3 C1 Br5 109.189
Br4 C1 Br5 109.189 H6 C2 H7 109.066
H6 C2 H8 109.066 H7 C2 H8 109.066
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.372      
2 C -0.566      
3 Br 0.064      
4 Br 0.064      
5 Br 0.064      
6 H 0.249      
7 H 0.249      
8 H 0.249      


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 1.707 1.707
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -67.701 0.000 0.000
y 0.000 -67.701 0.000
z 0.000 0.000 -64.799
Traceless
 xyz
x -1.451 0.000 0.000
y 0.000 -1.451 0.000
z 0.000 0.000 2.902
Polar
3z2-r25.804
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 11.818 0.000 0.000
y 0.000 11.818 0.000
z 0.000 0.000 8.816


<r2> (average value of r2) Å2
<r2> 453.571
(<r2>)1/2 21.297