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All results from a given calculation for CHBr3 (bromoform)

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-7754.753642
Energy at 298.15K-7754.763406
Nuclear repulsion energy811.234741
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 B1B95/6-31G*
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 3247 3083 2.80      
2 A1 545 517 0.94      
3 A1 226 215 0.01      
4 E 1173 1113 36.36      
4 E 1173 1113 36.21      
5 E 667 633 107.58      
5 E 667 633 107.30      
6 E 159 151 0.00      
6 E 159 151 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 4007.9 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 3804.7 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 B1B95/6-31G*
ABC
0.04170 0.04170 0.02119

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.537
H2 0.000 0.000 1.619
Br3 0.000 1.833 -0.046
Br4 1.587 -0.916 -0.046
Br5 -1.587 -0.916 -0.046

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4 Br5
C11.08181.92361.92361.9236
H21.08182.47652.47652.4765
Br31.92362.47653.17483.1748
Br41.92362.47653.17483.1748
Br51.92362.47653.17483.1748

picture of bromoform state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 107.659 H2 C1 Br4 107.659
H2 C1 Br5 107.659 Br3 C1 Br4 111.221
Br3 C1 Br5 111.221 Br4 C1 Br5 111.221
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.246      
2 H 0.283      
3 Br -0.013      
4 Br -0.013      
5 Br -0.013      


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 0.947 0.947
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -59.443 0.000 0.000
y 0.000 -59.443 0.000
z 0.000 0.000 -58.441
Traceless
 xyz
x -0.501 0.000 0.000
y 0.000 -0.501 0.000
z 0.000 0.000 1.002
Polar
3z2-r22.004
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 10.200 0.000 0.000
y 0.000 10.201 0.000
z 0.000 0.000 6.041


<r2> (average value of r2) Å2
<r2> 394.271
(<r2>)1/2 19.856