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All results from a given calculation for CHBr3 (bromoform)

using model chemistry: MP2=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-7756.830577
Energy at 298.15K-7756.840424
HF Energy-7755.825713
Nuclear repulsion energy814.761845
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 MP2=FULL/cc-pVTZ
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 3223 3060 4.23      
2 A1 556 528 0.39      
3 A1 231 219 0.00      
4 E 1186 1126 29.01      
4 E 1186 1126 29.01      
5 E 711 675 79.97      
5 E 711 675 79.97      
6 E 158 150 0.01      
6 E 158 150 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 4060.1 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 3854.7 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 MP2=FULL/cc-pVTZ
ABC
0.04203 0.04203 0.02135

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.525
H2 0.000 0.000 1.600
Br3 0.000 1.821 -0.045
Br4 1.577 -0.910 -0.045
Br5 -1.577 -0.910 -0.045

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4 Br5
C11.07491.90801.90801.9080
H21.07492.45402.45402.4540
Br31.90802.45403.15353.1535
Br41.90802.45403.15353.1535
Br51.90802.45403.15353.1535

picture of bromoform state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 107.398 H2 C1 Br4 107.398
H2 C1 Br5 107.398 Br3 C1 Br4 111.463
Br3 C1 Br5 111.463 Br4 C1 Br5 111.463
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability