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All results from a given calculation for CH2Br2 (dibromomethane)

using model chemistry: B2PLYP=FULLultrafine/6-31G

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/6-31G
 hartrees
Energy at 0K-5181.364044
Energy at 298.15K 
HF Energy-5181.300242
Nuclear repulsion energy343.329644
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/6-31G
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 3202 3202 3.17 104.02 0.09 0.16
2 A1 1487 1487 0.04 19.00 0.73 0.84
3 A1 543 543 5.73 17.27 0.14 0.25
4 A1 165 165 0.11 8.24 0.55 0.71
5 A2 1136 1136 0.00 19.52 0.75 0.86
6 B1 3304 3304 0.02 62.94 0.75 0.86
7 B1 825 825 7.89 6.57 0.75 0.86
8 B2 1254 1254 64.13 1.98 0.75 0.86
9 B2 599 599 98.15 9.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6257.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6257.2 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/6-31G
ABC
0.82377 0.03896 0.03747

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.975
H2 -0.904 0.000 1.571
H3 0.904 0.000 1.571
Br4 0.000 1.653 -0.128
Br5 0.000 -1.653 -0.128

Atom - Atom Distances (Å)
  C1 H2 H3 Br4 Br5
C11.08281.08281.98721.9872
H21.08281.80842.53702.5370
H31.08281.80842.53702.5370
Br41.98722.53702.53703.3052
Br51.98722.53702.53703.3052

picture of dibromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 H3 113.239 H2 C1 Br4 107.790
H2 C1 Br5 107.790 H3 C1 Br4 107.790
H3 C1 Br5 107.790 Br4 C1 Br5 112.536
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability