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All results from a given calculation for CH2Br2 (dibromomethane)

using model chemistry: CCSD=FULL/cc-pVQZ

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/cc-pVQZ
 hartrees
Energy at 0K-5184.946149
Energy at 298.15K 
HF Energy-5183.971839
Nuclear repulsion energy355.096856
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/cc-pVQZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3181 3181 1.53      
2 A1 1475 1475 0.01      
3 A1 616 616 3.38      
4 A1 179 179 0.10      
5 A2 1161 1161 0.00      
6 B1 3262 3262 2.01      
7 B1 844 844 3.41      
8 B2 1265 1265 59.51      
9 B2 715 715 66.39      

Unscaled Zero Point Vibrational Energy (zpe) 6348.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6348.8 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/cc-pVQZ
ABC
0.89498 0.04159 0.04005

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

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 1.531
H3 0.891 0.000 1.531
Br4 0.000 1.599 -0.123
Br5 0.000 -1.599 -0.123

Atom - Atom Distances (Å)
  C1 H2 H3 Br4 Br5
C11.07691.07691.91251.9125
H21.07691.78122.46722.4672
H31.07691.78122.46722.4672
Br41.91252.46722.46723.1986
Br51.91252.46722.46723.1986

picture of dibromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 H3 111.579 H2 C1 Br4 107.956
H2 C1 Br5 107.956 H3 C1 Br4 107.956
H3 C1 Br5 107.956 Br4 C1 Br5 113.495
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability