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

using model chemistry: BLYP/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-7800.423930
Energy at 298.15K-7800.435386
HF Energy-7800.423930
Nuclear repulsion energy953.395028
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/cc-pVDZ
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 2973 2977 2.94      
2 A1 1343 1345 3.81      
3 A1 1011 1013 16.74      
4 A1 388 388 7.03      
5 A1 201 201 0.00      
6 A2 298 298 0.00      
7 E 3059 3064 3.16      
7 E 3059 3064 3.15      
8 E 1403 1405 1.99      
8 E 1403 1405 1.99      
9 E 1039 1040 54.24      
9 E 1039 1040 54.24      
10 E 548 548 117.91      
10 E 548 548 117.91      
11 E 265 265 4.57      
11 E 265 265 4.57      
12 E 139 139 0.04      
12 E 139 139 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 9558.6 cm-1
Scaled (by 1.0016) Zero Point Vibrational Energy (zpe) 9573.9 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 BLYP/cc-pVDZ
ABC
0.03371 0.03371 0.01996

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.476
C2 0.000 0.000 2.003
Br3 0.000 1.885 -0.209
Br4 1.633 -0.943 -0.209
Br5 -1.633 -0.943 -0.209
H6 0.000 -1.043 2.374
H7 0.903 0.521 2.374
H8 -0.903 0.521 2.374

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.52732.00592.00592.00592.16612.16612.1661
C21.52732.90672.90672.90671.10691.10691.1069
Br32.00592.90673.26533.26533.90493.05793.0579
Br42.00592.90673.26533.26533.05793.05793.9049
Br52.00592.90673.26533.26533.05793.90493.0579
H62.16611.10693.90493.05793.05791.80611.8061
H72.16611.10693.05793.05793.90491.80611.8061
H82.16611.10693.05793.90493.05791.80611.8061

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 109.596 C1 C2 H7 109.596
C1 C2 H8 109.596 C2 C1 Br3 109.973
C2 C1 Br4 109.973 C2 C1 Br5 109.973
Br3 C1 Br4 108.965 Br3 C1 Br5 108.965
Br4 C1 Br5 108.965 H6 C2 H7 109.346
H6 C2 H8 109.346 H7 C2 H8 109.346
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.347      
2 C 0.144      
3 Br 0.022      
4 Br 0.022      
5 Br 0.022      
6 H 0.045      
7 H 0.045      
8 H 0.045      


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 1.635 1.635
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -66.664 0.000 0.000
y 0.000 -66.664 0.000
z 0.000 0.000 -63.885
Traceless
 xyz
x -1.389 0.000 0.000
y 0.000 -1.389 0.000
z 0.000 0.000 2.779
Polar
3z2-r25.558
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 11.768 0.000 0.000
y 0.000 11.768 0.000
z 0.000 0.000 8.769


<r2> (average value of r2) Å2
<r2> 464.445
(<r2>)1/2 21.551