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All results from a given calculation for CHBr3 (bromoform)

using model chemistry: MP2=FULL/cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-7756.140460
Energy at 298.15K-7756.150281
HF Energy-7755.579813
Nuclear repulsion energy804.054837
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-pVDZ
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 3213 3053 1.44      
2 A1 550 522 0.76      
3 A1 230 218 0.00      
4 E 1182 1123 32.42      
4 E 1182 1123 32.42      
5 E 694 660 88.19      
5 E 694 660 88.19      
6 E 159 151 0.00      
6 E 159 151 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 4030.1 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 3830.3 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-pVDZ
ABC
0.04093 0.04093 0.02079

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.524
H2 0.000 0.000 1.620
Br3 0.000 1.851 -0.045
Br4 1.603 -0.925 -0.045
Br5 -1.603 -0.925 -0.045

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4 Br5
C11.09561.93641.93641.9364
H21.09562.48962.48962.4896
Br31.93642.48963.20563.2056
Br41.93642.48963.20563.2056
Br51.93642.48963.20563.2056

picture of bromoform state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 107.106 H2 C1 Br4 107.106
H2 C1 Br5 107.106 Br3 C1 Br4 111.730
Br3 C1 Br5 111.730 Br4 C1 Br5 111.730
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability