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

using model chemistry: CID/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CID/daug-cc-pVDZ
 hartrees
Energy at 0K-2612.301777
Energy at 298.15K 
HF Energy-2612.005969
Nuclear repulsion energy88.949816
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 CID/daug-cc-pVDZ
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 3145 3145 19.13      
2 A1 1363 1363 23.10      
3 A1 640 640 12.33      
4 E 3260 3260 2.50      
4 E 3260 3260 2.50      
5 E 1492 1492 4.51      
5 E 1492 1492 4.51      
6 E 991 991 3.12      
6 E 991 991 3.12      

Unscaled Zero Point Vibrational Energy (zpe) 8317.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8317.2 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 CID/daug-cc-pVDZ
ABC
5.16508 0.31825 0.31825

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/daug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.523
Br2 0.000 0.000 0.421
H3 0.000 1.039 -1.860
H4 0.900 -0.519 -1.860
H5 -0.900 -0.519 -1.860

Atom - Atom Distances (Å)
  C1 Br2 H3 H4 H5
C11.94381.09211.09211.0921
Br21.94382.50582.50582.5058
H31.09212.50581.79961.7996
H41.09212.50581.79961.7996
H51.09212.50581.79961.7996

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 107.944 Br2 C1 H4 107.944
Br2 C1 H5 107.944 H3 C1 H4 110.955
H3 C1 H5 110.955 H4 C1 H5 110.955
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability