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All results from a given calculation for CH3Br (methyl bromide)

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 C3V 1A1
Energy calculated at CCSD=FULL/cc-pVQZ
 hartrees
Energy at 0K-2612.711489
Energy at 298.15K 
HF Energy-2612.097997
Nuclear repulsion energy89.886390
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
4/u)
Dep P Dep U
1 A1 3125 3125 16.37      
2 A1 1369 1369 17.84      
3 A1 654 654 9.79      
4 E 3232 3232 1.63      
4 E 3232 3232 1.63      
5 E 1504 1504 5.62      
5 E 1504 1504 5.62      
6 E 993 993 3.62      
6 E 993 993 3.62      

Unscaled Zero Point Vibrational Energy (zpe) 8302.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8302.9 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 CCSD=FULL/cc-pVQZ
ABC
5.29586 0.32486 0.32486

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.507
Br2 0.000 0.000 0.416
H3 0.000 1.026 -1.843
H4 0.889 -0.513 -1.843
H5 -0.889 -0.513 -1.843

Atom - Atom Distances (Å)
  C1 Br2 H3 H4 H5
C11.92341.07961.07961.0796
Br21.92342.48132.48132.4813
H31.07962.48131.77721.7772
H41.07962.48131.77721.7772
H51.07962.48131.77721.7772

picture of methyl bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 108.123 Br2 C1 H4 108.123
Br2 C1 H5 108.123 H3 C1 H4 110.785
H3 C1 H5 110.785 H4 C1 H5 110.785
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability