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All results from a given calculation for CHBr3 (bromoform)

using model chemistry: HF/SDD

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/SDD
 hartrees
Energy at 0K-77.787481
Energy at 298.15K-77.797327
Nuclear repulsion energy65.078594
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/SDD
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 3436 3094 0.39      
2 A1 549 495 1.63      
3 A1 232 209 0.01      
4 E 1304 1174 64.06      
4 E 1304 1174 64.06      
5 E 698 629 104.32      
5 E 698 629 104.32      
6 E 163 147 0.02      
6 E 163 147 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 4274.3 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 3848.6 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/SDD
ABC
0.03949 0.03949 0.02005

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.530
H2 0.000 0.000 1.599
Br3 0.000 1.885 -0.045
Br4 1.632 -0.942 -0.045
Br5 -1.632 -0.942 -0.045

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4 Br5
C11.06941.97051.97051.9705
H21.06942.50132.50132.5013
Br31.97052.50133.26443.2644
Br41.97052.50133.26443.2644
Br51.97052.50133.26443.2644

picture of bromoform state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 106.969 H2 C1 Br4 106.969
H2 C1 Br5 106.969 Br3 C1 Br4 111.853
Br3 C1 Br5 111.853 Br4 C1 Br5 111.853
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.777      
2 H 0.353      
3 Br 0.141      
4 Br 0.141      
5 Br 0.141      


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 1.265 1.265
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -52.661 0.000 0.000
y 0.000 -52.661 0.000
z 0.000 0.000 -50.099
Traceless
 xyz
x -1.281 0.000 0.000
y 0.000 -1.281 0.000
z 0.000 0.000 2.561
Polar
3z2-r25.123
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 9.417 0.000 0.000
y 0.000 9.417 0.000
z 0.000 0.000 3.424


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