return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CBr3Cl (tribromochloromethane)

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-8213.789946
Energy at 298.15K-8213.798467
HF Energy-8213.789946
Nuclear repulsion energy1138.677844
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 B3PW91/6-31G(2df,p)
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 736 708 117.08      
2 A1 341 328 0.00      
3 A1 220 211 0.16      
4 E 696 669 107.59      
4 E 696 669 107.58      
5 E 221 212 0.04      
5 E 221 212 0.04      
6 E 146 140 0.01      
6 E 146 140 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 1711.0 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 1645.0 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 B3PW91/6-31G(2df,p)
ABC
0.02981 0.02981 0.02178

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.288
Cl2 0.000 0.000 2.061
Br3 0.000 1.808 -0.350
Br4 1.566 -0.904 -0.350
Br5 -1.566 -0.904 -0.350

Atom - Atom Distances (Å)
  C1 Cl2 Br3 Br4 Br5
C11.77331.91741.91741.9174
Cl21.77333.01413.01413.0141
Br31.91743.01413.13173.1317
Br41.91743.01413.13173.1317
Br51.91743.01413.13173.1317

picture of tribromochloromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Br3 109.445 Cl2 C1 Br4 109.445
Cl2 C1 Br5 109.445 Br3 C1 Br4 109.497
Br3 C1 Br5 109.497 Br4 C1 Br5 109.497
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.443      
2 Cl -0.003      
3 Br 0.149      
4 Br 0.149      
5 Br 0.149      


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 -0.220 0.220
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -69.936 0.000 0.000
y 0.000 -69.936 0.000
z 0.000 0.000 -71.097
Traceless
 xyz
x 0.580 0.000 0.000
y 0.000 0.580 0.000
z 0.000 0.000 -1.161
Polar
3z2-r2-2.322
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 12.316 0.000 0.000
y 0.000 12.314 0.001
z 0.000 0.001 11.309


<r2> (average value of r2) Å2
<r2> 472.795
(<r2>)1/2 21.744