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

using model chemistry: B2PLYP=FULLultrafine/aug-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 B2PLYP=FULLultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-2613.572224
Energy at 298.15K 
HF Energy-2613.470000
Nuclear repulsion energy88.498081
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 B2PLYP=FULLultrafine/aug-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 3101 2984 17.78 148.77 0.00 0.00
2 A1 1314 1265 20.81 0.85 0.14 0.25
3 A1 608 585 12.77 23.68 0.18 0.31
4 E 3220 3099 1.69 53.46 0.75 0.86
4 E 3220 3099 1.69 53.46 0.75 0.86
5 E 1454 1399 5.20 3.54 0.75 0.86
5 E 1454 1399 5.20 3.54 0.75 0.86
6 E 960 924 3.80 0.35 0.75 0.86
6 E 960 924 3.80 0.35 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8146.1 cm-1
Scaled (by 0.9623) Zero Point Vibrational Energy (zpe) 7839.0 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 B2PLYP=FULLultrafine/aug-cc-pVDZ
ABC
5.15091 0.31464 0.31464

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.534
Br2 0.000 0.000 0.423
H3 0.000 1.040 -1.866
H4 0.901 -0.520 -1.866
H5 -0.901 -0.520 -1.866

Atom - Atom Distances (Å)
  C1 Br2 H3 H4 H5
C11.95661.09221.09221.0922
Br21.95662.51432.51432.5143
H31.09222.51431.80201.8020
H41.09222.51431.80201.8020
H51.09222.51431.80201.8020

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 107.717 Br2 C1 H4 107.717
Br2 C1 H5 107.717 H3 C1 H4 111.167
H3 C1 H5 111.167 H4 C1 H5 111.167
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability