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All results from a given calculation for CHBr3 (bromoform)

using model chemistry: TPSSh/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-7753.948960
Energy at 298.15K-7753.958721
HF Energy-7753.948960
Nuclear repulsion energy813.775044
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 TPSSh/6-31G(2df,p)
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 3177 3066 3.34      
2 A1 548 529 0.80      
3 A1 227 219 0.02      
4 E 1163 1122 28.14      
4 E 1163 1122 28.05      
5 E 662 639 102.68      
5 E 662 639 102.49      
6 E 154 148 0.00      
6 E 154 148 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 3955.2 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 3816.7 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 TPSSh/6-31G(2df,p)
ABC
0.04195 0.04195 0.02132

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

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 1.616
Br3 0.000 1.823 -0.046
Br4 1.579 -0.912 -0.046
Br5 -1.579 -0.912 -0.046

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4 Br5
C11.08361.91301.91301.9130
H21.08362.46732.46732.4673
Br31.91302.46733.15843.1584
Br41.91302.46733.15843.1584
Br51.91302.46733.15843.1584

picture of bromoform state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 107.599 H2 C1 Br4 107.599
H2 C1 Br5 107.599 Br3 C1 Br4 111.277
Br3 C1 Br5 111.277 Br4 C1 Br5 111.277
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability