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All results from a given calculation for CH2Br2 (dibromomethane)

using model chemistry: CCSD=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-5184.748208
Energy at 298.15K 
HF Energy-5183.964220
Nuclear repulsion energy355.195205
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 CCSD=FULL/aug-cc-pVTZ
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 3204 3047 1.57      
2 A1 1484 1412 0.00      
3 A1 614 584 2.89      
4 A1 179 170 0.09      
5 A2 1159 1102 0.00      
6 B1 3249 3090 2.27      
7 B1 841 800 3.34      
8 B2 1261 1199 60.01      
9 B2 712 677 63.97      

Unscaled Zero Point Vibrational Energy (zpe) 6351.6 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 6040.4 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 CCSD=FULL/aug-cc-pVTZ
ABC
0.89492 0.04162 0.04007

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.926
H2 -0.891 0.000 1.530
H3 0.891 0.000 1.530
Br4 0.000 1.599 -0.123
Br5 0.000 -1.599 -0.123

Atom - Atom Distances (Å)
  C1 H2 H3 Br4 Br5
C11.07631.07631.91221.9122
H21.07631.78172.46622.4662
H31.07631.78172.46622.4662
Br41.91222.46622.46623.1976
Br51.91222.46622.46623.1976

picture of dibromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 H3 111.728 H2 C1 Br4 107.929
H2 C1 Br5 107.929 H3 C1 Br4 107.929
H3 C1 Br5 107.929 Br4 C1 Br5 113.460
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability