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All results from a given calculation for CHBr3 (bromoform)

using model chemistry: HF/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 HF/6-31G
 hartrees
Energy at 0K-7747.681278
Energy at 298.15K-7747.691122
Nuclear repulsion energy796.932322
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 HF/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 3432 3099 3.06      
2 A1 543 490 2.75      
3 A1 233 210 0.05      
4 E 1289 1164 41.11      
4 E 1289 1164 41.11      
5 E 696 629 91.44      
5 E 696 629 91.44      
6 E 163 147 0.12      
6 E 163 147 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 4252.5 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 3839.6 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 HF/6-31G
ABC
0.04021 0.04021 0.02043

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.543
H2 0.000 0.000 1.611
Br3 0.000 1.867 -0.046
Br4 1.617 -0.933 -0.046
Br5 -1.617 -0.933 -0.046

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4 Br5
C11.06811.95781.95781.9578
H21.06812.49672.49672.4967
Br31.95782.49673.23363.2336
Br41.95782.49673.23363.2336
Br51.95782.49673.23363.2336

picture of bromoform state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 107.529 H2 C1 Br4 107.529
H2 C1 Br5 107.529 Br3 C1 Br4 111.342
Br3 C1 Br5 111.342 Br4 C1 Br5 111.342
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.839      
2 H 0.333      
3 Br 0.169      
4 Br 0.169      
5 Br 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 1.345 1.345
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -62.568 0.000 0.000
y 0.000 -62.568 0.000
z 0.000 0.000 -59.881
Traceless
 xyz
x -1.344 0.000 0.000
y 0.000 -1.344 0.000
z 0.000 0.000 2.687
Polar
3z2-r25.375
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 8.578 0.000 0.000
y 0.000 8.578 0.000
z 0.000 0.000 3.290


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000