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 CHBr3 (bromoform)

using model chemistry: B3LYP/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 B3LYP/6-31G**
 hartrees
Energy at 0K-7753.808185
Energy at 298.15K-7753.817882
Nuclear repulsion energy800.424536
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 B3LYP/6-31G**
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 3215 3089 2.30      
2 A1 527 507 1.04      
3 A1 221 212 0.00      
4 E 1157 1112 37.89      
4 E 1157 1112 37.87      
5 E 626 601 116.30      
5 E 626 601 116.25      
6 E 156 150 0.01      
6 E 156 150 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 3919.5 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 3765.9 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 B3LYP/6-31G**
ABC
0.04057 0.04057 0.02061

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.538
H2 0.000 0.000 1.621
Br3 0.000 1.859 -0.046
Br4 1.610 -0.929 -0.046
Br5 -1.610 -0.929 -0.046

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4 Br5
C11.08331.94811.94811.9481
H21.08332.49672.49672.4967
Br31.94812.49673.21923.2192
Br41.94812.49673.21923.2192
Br51.94812.49673.21923.2192

picture of bromoform state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 107.437 H2 C1 Br4 107.437
H2 C1 Br5 107.437 Br3 C1 Br4 111.427
Br3 C1 Br5 111.427 Br4 C1 Br5 111.427
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.143      
2 H 0.221      
3 Br -0.026      
4 Br -0.026      
5 Br -0.026      


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 0.951 0.951
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -59.733 0.000 0.000
y 0.000 -59.733 0.000
z 0.000 0.000 -58.701
Traceless
 xyz
x -0.516 0.000 0.000
y 0.000 -0.516 0.000
z 0.000 0.000 1.033
Polar
3z2-r22.065
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 10.453 0.000 0.000
y 0.000 10.453 -0.000
z 0.000 -0.000 6.069


<r2> (average value of r2) Å2
<r2> 404.386
(<r2>)1/2 20.109