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All results from a given calculation for CH2Br2 (dibromomethane)

using model chemistry: B2PLYP=FULLultrafine/cc-pVTZ-PP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULLultrafine/cc-pVTZ-PP
 hartrees
Energy at 0K-872.268090
Energy at 298.15K 
HF Energy-872.036028
Nuclear repulsion energy211.785347
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 B2PLYP=FULLultrafine/cc-pVTZ-PP
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 3158 3158 1.98 90.72 0.06 0.11
2 A1 1452 1452 0.08 10.17 0.64 0.78
3 A1 587 587 3.42 15.15 0.07 0.13
4 A1 171 171 0.07 4.30 0.40 0.57
5 A2 1122 1122 0.00 3.02 0.75 0.86
6 B1 3239 3239 1.45 45.67 0.75 0.86
7 B1 823 823 4.29 1.26 0.75 0.86
8 B2 1225 1225 67.35 0.01 0.75 0.86
9 B2 655 655 90.73 5.39 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6214.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6214.7 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 B2PLYP=FULLultrafine/cc-pVTZ-PP
ABC
0.88275 0.04063 0.03913

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/cc-pVTZ-PP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.934
H2 -0.896 0.000 1.534
H3 0.896 0.000 1.534
Br4 0.000 1.618 -0.124
Br5 0.000 -1.618 -0.124

Atom - Atom Distances (Å)
  C1 H2 H3 Br4 Br5
C11.07861.07861.93341.9334
H21.07861.79252.48422.4842
H31.07861.79252.48422.4842
Br41.93342.48422.48423.2365
Br51.93342.48422.48423.2365

picture of dibromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 H3 112.393 H2 C1 Br4 107.725
H2 C1 Br5 107.725 H3 C1 Br4 107.725
H3 C1 Br5 107.725 Br4 C1 Br5 113.646
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability