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

using model chemistry: MP2=FULL/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-2612.590599
Energy at 298.15K 
HF Energy-2612.092900
Nuclear repulsion energy90.245775
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 MP2=FULL/daug-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 3147 3147 15.91 147.34 0.00 0.00
2 A1 1351 1351 15.86 1.50 0.09 0.16
3 A1 666 666 8.02 20.80 0.15 0.26
4 E 3233 3233 0.59 48.33 0.75 0.86
4 E 3233 3233 0.59 48.33 0.75 0.86
5 E 1509 1509 5.61 3.38 0.75 0.86
5 E 1509 1509 5.61 3.38 0.75 0.86
6 E 990 990 3.78 0.25 0.75 0.86
6 E 990 990 3.78 0.25 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8314.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8314.8 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 MP2=FULL/daug-cc-pVTZ
ABC
5.29934 0.32782 0.32782

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/daug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.499
Br2 0.000 0.000 0.414
H3 0.000 1.026 -1.837
H4 0.888 -0.513 -1.837
H5 -0.888 -0.513 -1.837

Atom - Atom Distances (Å)
  C1 Br2 H3 H4 H5
C11.91361.07991.07991.0799
Br21.91362.47402.47402.4740
H31.07992.47401.77661.7766
H41.07992.47401.77661.7766
H51.07992.47401.77661.7766

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 108.227 Br2 C1 H4 108.227
Br2 C1 H5 108.227 H3 C1 H4 110.686
H3 C1 H5 110.686 H4 C1 H5 110.686
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability