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All results from a given calculation for CHBr3 (bromoform)

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-7754.271293
Energy at 298.15K-7754.281064
Nuclear repulsion energy809.196671
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 mPW1PW91/6-31G*
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 3248 3080 2.92      
2 A1 546 518 0.93      
3 A1 228 216 0.00      
4 E 1179 1118 36.17      
4 E 1179 1118 36.20      
5 E 665 630 109.36      
5 E 665 630 109.31      
6 E 160 152 0.00      
6 E 160 152 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 4015.1 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 3807.5 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 mPW1PW91/6-31G*
ABC
0.04148 0.04148 0.02108

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.536
H2 0.000 0.000 1.619
Br3 0.000 1.838 -0.046
Br4 1.592 -0.919 -0.046
Br5 -1.592 -0.919 -0.046

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4 Br5
C11.08291.92791.92791.9279
H21.08292.48012.48012.4801
Br31.92792.48013.18323.1832
Br41.92792.48013.18323.1832
Br51.92792.48013.18323.1832

picture of bromoform state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 107.583 H2 C1 Br4 107.583
H2 C1 Br5 107.583 Br3 C1 Br4 111.292
Br3 C1 Br5 111.292 Br4 C1 Br5 111.292
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.258      
2 H 0.291      
3 Br -0.011      
4 Br -0.011      
5 Br -0.011      


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 0.961 0.961
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -59.572 0.000 0.000
y 0.000 -59.572 0.000
z 0.000 0.000 -58.521
Traceless
 xyz
x -0.526 0.000 0.000
y 0.000 -0.526 0.000
z 0.000 0.000 1.052
Polar
3z2-r22.103
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 10.234 0.000 0.000
y 0.000 10.234 0.000
z 0.000 0.000 6.051


<r2> (average value of r2) Å2
<r2> 396.205
(<r2>)1/2 19.905