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

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-311G**
 hartrees
Energy at 0K-7799.335126
Energy at 298.15K-7799.346890
HF Energy-7799.335126
Nuclear repulsion energy976.835246
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 HSEh1PBE/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 3067 2946 1.94      
2 A1 1411 1355 10.12      
3 A1 1077 1035 8.88      
4 A1 418 401 5.49      
5 A1 219 211 0.02      
6 A2 326 314 0.00      
7 E 3159 3034 2.17      
7 E 3159 3034 2.17      
8 E 1470 1412 3.56      
8 E 1470 1412 3.56      
9 E 1091 1048 59.11      
9 E 1091 1048 59.09      
10 E 628 603 98.84      
10 E 628 603 98.79      
11 E 282 271 2.41      
11 E 282 271 2.41      
12 E 151 145 0.00      
12 E 151 145 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 10039.4 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 9641.8 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 HSEh1PBE/6-311G**
ABC
0.03539 0.03539 0.02098

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.455
C2 0.000 0.000 1.964
Br3 0.000 1.839 -0.205
Br4 1.592 -0.919 -0.205
Br5 -1.592 -0.919 -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
C11.50931.95341.95341.95342.13972.13972.1397
C21.50932.84342.84342.84341.09151.09151.0915
Br31.95342.84343.18483.18483.82752.99672.9967
Br41.95342.84343.18483.18482.99672.99673.8275
Br51.95342.84343.18483.18482.99673.82752.9967
H62.13971.09153.82752.99672.99671.78021.7802
H72.13971.09152.99672.99673.82751.78021.7802
H82.13971.09152.99673.82752.99671.78021.7802

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 109.671 C1 C2 H7 109.671
C1 C2 H8 109.671 C2 C1 Br3 109.733
C2 C1 Br4 109.733 C2 C1 Br5 109.733
Br3 C1 Br4 109.209 Br3 C1 Br5 109.209
Br4 C1 Br5 109.209 H6 C2 H7 109.271
H6 C2 H8 109.271 H7 C2 H8 109.271
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.489      
2 C -0.258      
3 Br 0.080      
4 Br 0.080      
5 Br 0.080      
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 1.694 1.694
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -67.357 0.000 0.000
y 0.000 -67.357 0.000
z 0.000 0.000 -64.466
Traceless
 xyz
x -1.445 0.000 0.000
y 0.000 -1.445 0.000
z 0.000 0.000 2.891
Polar
3z2-r25.781
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 11.586 0.000 0.000
y 0.000 11.586 -0.000
z 0.000 -0.000 8.802


<r2> (average value of r2) Å2
<r2> 444.733
(<r2>)1/2 21.089