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All results from a given calculation for CHBr3 (bromoform)

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G
 hartrees
Energy at 0K-46.342264
Energy at 298.15K-46.351877
Nuclear repulsion energy51.846314
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 B3LYP/CEP-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 3207 3106 0.12      
2 A1 507 491 0.78      
3 A1 212 205 0.02      
4 E 1157 1121 50.95      
4 E 1157 1121 50.95      
5 E 608 589 161.86      
5 E 608 589 161.81      
6 E 145 141 0.03      
6 E 145 141 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 3873.1 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 3750.7 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 B3LYP/CEP-31G
ABC
0.03804 0.03804 0.01931

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.533
H2 0.000 0.000 1.627
Br3 0.000 1.920 -0.046
Br4 1.663 -0.960 -0.046
Br5 -1.663 -0.960 -0.046

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4 Br5
C11.09402.00572.00572.0057
H21.09402.54682.54682.5468
Br32.00572.54683.32633.3263
Br42.00572.54683.32633.3263
Br52.00572.54683.32633.3263

picture of bromoform state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 106.772 H2 C1 Br4 106.772
H2 C1 Br5 106.772 Br3 C1 Br4 112.031
Br3 C1 Br5 112.031 Br4 C1 Br5 112.031
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.724      
2 H 0.299      
3 Br 0.142      
4 Br 0.142      
5 Br 0.142      


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 1.204 1.204
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -51.514 0.000 0.000
y 0.000 -51.514 0.000
z 0.000 0.000 -49.654
Traceless
 xyz
x -0.930 0.000 0.000
y 0.000 -0.930 0.000
z 0.000 0.000 1.860
Polar
3z2-r23.719
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 9.768 0.000 0.000
y 0.000 9.770 -0.000
z 0.000 -0.000 3.189


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