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All results from a given calculation for CH2Br2 (dibromomethane)

using model chemistry: B2PLYP=FULLultrafine/STO-3G

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/STO-3G
 hartrees
Energy at 0K-5130.124112
Energy at 298.15K 
HF Energy-5130.096805
Nuclear repulsion energy347.792677
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/STO-3G
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 3359 3359 0.67 41.09 0.14 0.24
2 A1 1648 1648 0.13 16.29 0.73 0.84
3 A1 661 661 6.54 10.79 0.13 0.23
4 A1 190 190 0.53 3.91 0.56 0.72
5 A2 1269 1269 0.00 13.93 0.75 0.86
6 B1 3478 3478 0.49 33.17 0.75 0.86
7 B1 888 888 0.06 2.20 0.75 0.86
8 B2 1374 1374 58.15 2.33 0.75 0.86
9 B2 812 812 50.35 7.68 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6839.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6839.4 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/STO-3G
ABC
0.90307 0.03955 0.03817

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.910
H2 -0.895 0.000 1.558
H3 0.895 0.000 1.558
Br4 0.000 1.640 -0.123
Br5 0.000 -1.640 -0.123

Atom - Atom Distances (Å)
  C1 H2 H3 Br4 Br5
C11.10521.10521.93841.9384
H21.10521.79052.51352.5135
H31.10521.79052.51352.5135
Br41.93842.51352.51353.2803
Br51.93842.51352.51353.2803

picture of dibromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 H3 108.204 H2 C1 Br4 108.209
H2 C1 Br5 108.209 H3 C1 Br4 108.209
H3 C1 Br5 108.209 Br4 C1 Br5 115.593
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability