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All results from a given calculation for CH2Br2 (dibromomethane)

using model chemistry: MP2=FULL/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/Def2TZVPP
 hartrees
Energy at 0K-5184.762648
Energy at 298.15K 
HF Energy-5183.870894
Nuclear repulsion energy355.065098
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/Def2TZVPP
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 3169 3169 1.45 91.93 0.06 0.10
2 A1 1457 1457 0.01 10.49 0.65 0.78
3 A1 618 618 3.07 12.43 0.08 0.15
4 A1 177 177 0.08 3.33 0.43 0.60
5 A2 1151 1151 0.00 2.30 0.75 0.86
6 B1 3256 3256 2.18 45.28 0.75 0.86
7 B1 833 833 4.30 0.90 0.75 0.86
8 B2 1244 1244 58.35 0.00 0.75 0.86
9 B2 709 709 68.70 5.59 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6306.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6306.9 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/Def2TZVPP
ABC
0.89068 0.04162 0.04007

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.928
H2 -0.893 0.000 1.533
H3 0.893 0.000 1.533
Br4 0.000 1.599 -0.123
Br5 0.000 -1.599 -0.123

Atom - Atom Distances (Å)
  C1 H2 H3 Br4 Br5
C11.07841.07841.91361.9136
H21.07841.78562.46932.4693
H31.07841.78562.46932.4693
Br41.91362.46932.46933.1975
Br51.91362.46932.46933.1975

picture of dibromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 H3 111.759 H2 C1 Br4 107.954
H2 C1 Br5 107.954 H3 C1 Br4 107.954
H3 C1 Br5 107.954 Br4 C1 Br5 113.328
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability