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

using model chemistry: B97D3/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 B97D3/daug-cc-pVDZ
 hartrees
Energy at 0K-2615.337790
Energy at 298.15K 
HF Energy-2615.337790
Nuclear repulsion energy87.833955
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 B97D3/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 3022 3022 19.92 160.17 0.00 0.01
2 A1 1263 1263 20.64 1.05 0.06 0.12
3 A1 565 565 13.63 22.87 0.15 0.27
4 E 3144 3144 3.76 56.22 0.75 0.86
4 E 3144 3144 3.77 56.26 0.75 0.86
5 E 1409 1409 4.49 3.47 0.75 0.86
5 E 1409 1409 4.49 3.45 0.75 0.86
6 E 931 931 3.54 0.38 0.75 0.86
6 E 931 931 3.55 0.39 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7908.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7908.6 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 B97D3/daug-cc-pVDZ
ABC
5.09504 0.30966 0.30966

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/daug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.548
Br2 0.000 0.000 0.426
H3 0.000 1.046 -1.876
H4 0.906 -0.523 -1.876
H5 -0.906 -0.523 -1.876

Atom - Atom Distances (Å)
  C1 Br2 H3 H4 H5
C11.97401.09631.09631.0963
Br21.97402.52862.52862.5286
H31.09632.52861.81191.8119
H41.09632.52861.81191.8119
H51.09632.52861.81191.8119

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 107.410 Br2 C1 H4 107.410
Br2 C1 H5 107.410 H3 C1 H4 111.451
H3 C1 H5 111.451 H4 C1 H5 111.451
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.326      
2 Br 0.194      
3 H -0.173      
4 H -0.173      
5 H -0.173      


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 -1.955 1.955
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.938 0.000 0.000
y 0.000 -25.938 0.000
z 0.000 0.000 -22.070
Traceless
 xyz
x -1.934 0.000 0.000
y 0.000 -1.934 0.000
z 0.000 0.000 3.868
Polar
3z2-r27.736
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 5.093 0.000 0.000
y 0.000 5.091 -0.000
z 0.000 -0.000 7.034


<r2> (average value of r2) Å2
<r2> 49.966
(<r2>)1/2 7.069