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All results from a given calculation for CHBr3 (bromoform)

using model chemistry: PBEPBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBE/6-311G*
 hartrees
Energy at 0K-7759.857204
Energy at 298.15K-7759.866833
Nuclear repulsion energy796.191533
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 PBEPBE/6-311G*
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 3132 3099 1.46      
2 A1 521 516 0.21      
3 A1 216 214 0.00      
4 E 1138 1126 36.95      
4 E 1138 1126 36.93      
5 E 601 595 149.87      
5 E 601 595 149.89      
6 E 147 145 0.08      
6 E 147 145 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 3820.2 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 3780.5 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 PBEPBE/6-311G*
ABC
0.04010 0.04010 0.02036

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.519
H2 0.000 0.000 1.609
Br3 0.000 1.870 -0.045
Br4 1.620 -0.935 -0.045
Br5 -1.620 -0.935 -0.045

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4 Br5
C11.08991.95331.95331.9533
H21.08992.49632.49632.4963
Br31.95332.49633.23933.2393
Br41.95332.49633.23933.2393
Br51.95332.49633.23933.2393

picture of bromoform state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 106.770 H2 C1 Br4 106.770
H2 C1 Br5 106.770 Br3 C1 Br4 112.032
Br3 C1 Br5 112.032 Br4 C1 Br5 112.032
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.591      
2 H 0.342      
3 Br 0.083      
4 Br 0.083      
5 Br 0.083      


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 0.968 0.968
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -60.474 0.000 0.000
y 0.000 -60.474 0.000
z 0.000 0.000 -59.659
Traceless
 xyz
x -0.407 0.000 0.000
y 0.000 -0.407 0.000
z 0.000 0.000 0.815
Polar
3z2-r21.630
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 10.770 0.000 0.000
y 0.000 10.770 -0.000
z 0.000 -0.000 5.459


<r2> (average value of r2) Å2
<r2> 409.283
(<r2>)1/2 20.231