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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-7748.094414
Energy at 298.15K-7748.104354
Nuclear repulsion energy809.808198
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 3394 3064 2.78      
2 A1 574 518 1.95      
3 A1 242 218 0.03      
4 E 1290 1164 44.84      
4 E 1290 1164 44.84      
5 E 737 665 90.15      
5 E 737 665 90.15      
6 E 173 156 0.02      
6 E 173 156 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 4304.1 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 3884.8 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
0.04153 0.04153 0.02110

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 0.531
H2 0.000 0.000 1.602
Br3 0.000 1.837 -0.046
Br4 1.591 -0.919 -0.046
Br5 -1.591 -0.919 -0.046

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4 Br5
C11.07091.92551.92551.9255
H21.07092.46792.46792.4679
Br31.92552.46793.18193.1819
Br41.92552.46793.18193.1819
Br51.92552.46793.18193.1819

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 111.426
Br3 C1 Br5 111.426 Br4 C1 Br5 111.426
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 -0.139      
2 H 0.248      
3 Br -0.036      
4 Br -0.036      
5 Br -0.036      


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 1.063 1.063
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -60.793 0.000 0.000
y 0.000 -60.793 0.000
z 0.000 0.000 -59.349
Traceless
 xyz
x -0.722 0.000 0.000
y 0.000 -0.722 0.000
z 0.000 0.000 1.444
Polar
3z2-r22.887
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 9.884 0.000 0.000
y 0.000 9.884 0.000
z 0.000 0.000 5.936


<r2> (average value of r2) Å2
<r2> 396.498
(<r2>)1/2 19.912