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

using model chemistry: wB97X-D/aug-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 wB97X-D/aug-cc-pVQZ
 hartrees
Energy at 0K-2614.182723
Energy at 298.15K 
HF Energy-2614.182723
Nuclear repulsion energy89.386971
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 wB97X-D/aug-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 3095 3095 16.78 146.50 0.00 0.00
2 A1 1349 1349 15.52 1.55 0.12 0.22
3 A1 638 638 10.69 22.33 0.16 0.28
4 E 3204 3204 1.32 51.15 0.75 0.86
4 E 3204 3204 1.32 51.49 0.75 0.86
5 E 1483 1483 6.64 3.26 0.75 0.86
5 E 1483 1483 6.66 3.26 0.75 0.86
6 E 976 976 3.92 0.28 0.75 0.86
6 E 976 976 3.92 0.29 0.75 0.85

Unscaled Zero Point Vibrational Energy (zpe) 8203.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8203.3 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 wB97X-D/aug-cc-pVQZ
ABC
5.25452 0.32110 0.32110

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pVQZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.516
Br2 0.000 0.000 0.419
H3 0.000 1.030 -1.853
H4 0.892 -0.515 -1.853
H5 -0.892 -0.515 -1.853

Atom - Atom Distances (Å)
  C1 Br2 H3 H4 H5
C11.93511.08361.08361.0836
Br21.93512.49402.49402.4940
H31.08362.49401.78421.7842
H41.08362.49401.78421.7842
H51.08362.49401.78421.7842

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 108.079 Br2 C1 H4 108.079
Br2 C1 H5 108.079 H3 C1 H4 110.826
H3 C1 H5 110.826 H4 C1 H5 110.826
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.410      
2 Br 0.015      
3 H 0.132      
4 H 0.132      
5 H 0.132      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.905 1.905
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.799 0.000 0.000
y 0.000 -25.799 0.000
z 0.000 0.000 -22.166
Traceless
 xyz
x -1.816 0.000 0.000
y 0.000 -1.816 0.000
z 0.000 0.000 3.633
Polar
3z2-r27.266
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.855 0.000 0.000
y 0.000 4.852 -0.001
z 0.000 -0.001 6.705


<r2> (average value of r2) Å2
<r2> 48.769
(<r2>)1/2 6.983