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All results from a given calculation for CBr3 (tribromomethyl radical)

using model chemistry: ROHF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at ROHF/Def2TZVPP
 hartrees
Energy at 0K-7755.059089
Energy at 298.15K 
HF Energy-7755.059089
Nuclear repulsion energy785.505705
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 ROHF/Def2TZVPP
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 378 378 0.03      
2 A1 258 258 0.04      
3 E 850 850 101.92      
3 E 850 850 101.92      
4 E 170 170 0.07      
4 E 170 170 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 1337.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1337.4 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 ROHF/Def2TZVPP
ABC
0.04160 0.04160 0.02086

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.300
Br2 0.000 1.848 -0.017
Br3 1.600 -0.924 -0.017
Br4 -1.600 -0.924 -0.017

Atom - Atom Distances (Å)
  C1 Br2 Br3 Br4
C11.87481.87481.8748
Br21.87483.20033.2003
Br31.87483.20033.2003
Br41.87483.20033.2003

picture of tribromomethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Br3 117.191 Br2 C1 Br4 117.191
Br3 C1 Br4 117.191
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.003      
2 Br 0.001      
3 Br 0.001      
4 Br 0.001      


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 -0.040 0.040
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -58.990 0.000 0.000
y 0.000 -58.992 -0.001
z 0.000 -0.001 -61.276
Traceless
 xyz
x 1.144 0.000 0.000
y 0.000 1.141 -0.001
z 0.000 -0.001 -2.285
Polar
3z2-r2-4.569
x2-y20.002
xy0.000
xz0.000
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 396.349
(<r2>)1/2 19.909