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

using model chemistry: PBE1PBE/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 PBE1PBE/6-311G**
 hartrees
Energy at 0K-7799.391923
Energy at 298.15K-7799.403697
HF Energy-7799.391923
Nuclear repulsion energy978.099031
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 PBE1PBE/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 3069 2944 1.76      
2 A1 1410 1353 10.29      
3 A1 1080 1036 8.73      
4 A1 419 402 5.50      
5 A1 220 212 0.02      
6 A2 324 311 0.00      
7 E 3161 3033 1.95      
7 E 3161 3033 1.95      
8 E 1469 1409 3.59      
8 E 1469 1409 3.59      
9 E 1091 1046 59.41      
9 E 1091 1046 59.39      
10 E 634 608 96.46      
10 E 634 608 96.43      
11 E 282 270 2.23      
11 E 282 270 2.23      
12 E 152 145 0.00      
12 E 152 145 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 10049.3 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 9641.3 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 PBE1PBE/6-311G**
ABC
0.03548 0.03548 0.02104

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.454
C2 0.000 0.000 1.963
Br3 0.000 1.836 -0.205
Br4 1.590 -0.918 -0.205
Br5 -1.590 -0.918 -0.205
H6 0.000 -1.028 2.331
H7 0.890 0.514 2.331
H8 -0.890 0.514 2.331

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.50951.95061.95061.95062.13992.13992.1399
C21.50952.84112.84112.84111.09161.09161.0916
Br31.95062.84113.18023.18023.82502.99472.9947
Br41.95062.84113.18023.18022.99472.99473.8250
Br51.95062.84113.18023.18022.99473.82502.9947
H62.13991.09163.82502.99472.99471.78061.7806
H72.13991.09162.99472.99473.82501.78061.7806
H82.13991.09162.99473.82502.99471.78061.7806

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 109.659 C1 C2 H7 109.659
C1 C2 H8 109.659 C2 C1 Br3 109.732
C2 C1 Br4 109.732 C2 C1 Br5 109.732
Br3 C1 Br4 109.210 Br3 C1 Br5 109.210
Br4 C1 Br5 109.210 H6 C2 H7 109.283
H6 C2 H8 109.283 H7 C2 H8 109.283
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.494      
2 C -0.258      
3 Br 0.081      
4 Br 0.081      
5 Br 0.081      
6 H 0.169      
7 H 0.169      
8 H 0.169      


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 1.693 1.693
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -67.272 0.000 0.000
y 0.000 -67.272 0.000
z 0.000 0.000 -64.387
Traceless
 xyz
x -1.442 0.000 0.000
y 0.000 -1.442 0.000
z 0.000 0.000 2.884
Polar
3z2-r25.769
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 11.520 0.000 0.000
y 0.000 11.520 0.000
z 0.000 0.000 8.769


<r2> (average value of r2) Å2
<r2> 443.615
(<r2>)1/2 21.062