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

using model chemistry: HSEh1PBE/6-31G**

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/6-31G**
 hartrees
Energy at 0K-7791.980981
Energy at 298.15K-7791.992729
HF Energy-7791.980981
Nuclear repulsion energy981.074450
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/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3083 2942 2.11      
2 A1 1414 1349 10.83      
3 A1 1088 1038 7.70      
4 A1 420 401 5.96      
5 A1 224 214 0.06      
6 A2 309 295 0.00      
7 E 3183 3038 1.67      
7 E 3183 3038 1.67      
8 E 1482 1414 3.80      
8 E 1482 1414 3.79      
9 E 1091 1041 52.55      
9 E 1091 1041 52.53      
10 E 632 603 88.37      
10 E 632 603 88.33      
11 E 280 267 1.97      
11 E 280 267 1.97      
12 E 156 149 0.02      
12 E 156 149 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 10092.7 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 9631.5 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/6-31G**
ABC
0.03569 0.03569 0.02122

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.462
C2 0.000 0.000 1.971
Br3 0.000 1.828 -0.206
Br4 1.583 -0.914 -0.206
Br5 -1.583 -0.914 -0.206
H6 0.000 -1.029 2.337
H7 0.892 0.515 2.337
H8 -0.892 0.515 2.337

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.50981.94601.94601.94602.13942.13942.1394
C21.50982.84282.84282.84281.09241.09241.0924
Br31.94602.84283.16623.16623.82502.99752.9975
Br41.94602.84283.16623.16622.99752.99753.8250
Br51.94602.84283.16623.16622.99753.82502.9975
H62.13941.09243.82502.99752.99751.78301.7830
H72.13941.09242.99752.99753.82501.78301.7830
H82.13941.09242.99753.82502.99751.78301.7830

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 109.554 C1 C2 H7 109.554
C1 C2 H8 109.554 C2 C1 Br3 110.054
C2 C1 Br4 110.054 C2 C1 Br5 110.054
Br3 C1 Br4 108.882 Br3 C1 Br5 108.882
Br4 C1 Br5 108.882 H6 C2 H7 109.388
H6 C2 H8 109.388 H7 C2 H8 109.388
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.118      
2 C -0.353      
3 Br -0.018      
4 Br -0.018      
5 Br -0.018      
6 H 0.175      
7 H 0.175      
8 H 0.175      


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 1.664 1.664
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -66.418 0.000 0.000
y 0.000 -66.418 0.000
z 0.000 0.000 -63.536
Traceless
 xyz
x -1.441 0.000 0.000
y 0.000 -1.441 0.000
z 0.000 0.000 2.882
Polar
3z2-r25.764
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 11.443 0.000 0.000
y 0.000 11.443 -0.000
z 0.000 -0.000 8.773


<r2> (average value of r2) Å2
<r2> 440.365
(<r2>)1/2 20.985