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

using model chemistry: B3LYP/SDD

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/SDD
 hartrees
Energy at 0K-118.116654
Energy at 298.15K-118.128224
HF Energy-118.116654
Nuclear repulsion energy115.982398
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/SDD
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 3065 2946 3.76      
2 A1 1449 1393 12.83      
3 A1 1057 1016 12.11      
4 A1 387 372 7.35      
5 A1 207 199 0.02      
6 A2 310 298 0.00      
7 E 3168 3045 4.74      
7 E 3168 3045 4.74      
8 E 1496 1438 6.93      
8 E 1496 1438 6.93      
9 E 1109 1066 86.42      
9 E 1109 1066 86.40      
10 E 580 558 121.98      
10 E 580 558 121.96      
11 E 273 263 4.24      
11 E 273 263 4.24      
12 E 145 139 0.01      
12 E 145 139 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 10006.9 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 9619.6 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/SDD
ABC
0.03324 0.03324 0.01964

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.479
C2 0.000 0.000 2.008
Br3 0.000 1.900 -0.210
Br4 1.646 -0.950 -0.210
Br5 -1.646 -0.950 -0.210
H6 0.000 -1.030 2.381
H7 0.892 0.515 2.381
H8 -0.892 0.515 2.381

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.52902.02132.02132.02132.16312.16312.1631
C21.52902.92052.92052.92051.09521.09521.0952
Br32.02132.92053.29143.29143.91123.07053.0705
Br42.02132.92053.29143.29143.07053.07053.9112
Br52.02132.92053.29143.29143.07053.91123.0705
H62.16311.09523.91123.07053.07051.78321.7832
H72.16311.09523.07053.07053.91121.78321.7832
H82.16311.09523.07053.91123.07051.78321.7832

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 109.934 C1 C2 H7 109.934
C1 C2 H8 109.934 C2 C1 Br3 109.921
C2 C1 Br4 109.921 C2 C1 Br5 109.921
Br3 C1 Br4 109.018 Br3 C1 Br5 109.018
Br4 C1 Br5 109.018 H6 C2 H7 109.004
H6 C2 H8 109.004 H7 C2 H8 109.004
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.564      
2 C -0.520      
3 Br 0.108      
4 Br 0.108      
5 Br 0.108      
6 H 0.253      
7 H 0.253      
8 H 0.253      


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 2.046 2.046
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -58.472 0.000 0.000
y 0.000 -58.472 0.000
z 0.000 0.000 -54.552
Traceless
 xyz
x -1.960 0.000 0.000
y 0.000 -1.960 0.000
z 0.000 0.000 3.920
Polar
3z2-r27.840
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 11.545 0.000 0.000
y 0.000 11.545 -0.000
z 0.000 -0.000 7.116


<r2> (average value of r2) Å2
<r2> 158.209
(<r2>)1/2 12.578