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

using model chemistry: B97D3/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-2615.381073
Energy at 298.15K 
HF Energy-2615.381073
Nuclear repulsion energy88.295908
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/Def2TZVPP
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 3031 2989 17.71 144.09 0.00 0.00
2 A1 1299 1281 20.20 0.05 0.40 0.57
3 A1 572 564 11.86 19.01 0.25 0.40
4 E 3140 3097 3.89 56.35 0.75 0.86
4 E 3140 3097 3.89 56.32 0.75 0.86
5 E 1446 1426 4.83 6.39 0.75 0.86
5 E 1446 1426 4.83 6.38 0.75 0.86
6 E 944 931 4.47 2.33 0.75 0.86
6 E 944 931 4.47 2.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7980.1 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 7870.8 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 B97D3/Def2TZVPP
ABC
5.17999 0.31271 0.31271

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.540
Br2 0.000 0.000 0.424
H3 0.000 1.037 -1.869
H4 0.898 -0.519 -1.869
H5 -0.898 -0.519 -1.869

Atom - Atom Distances (Å)
  C1 Br2 H3 H4 H5
C11.96411.08831.08831.0883
Br21.96412.51652.51652.5165
H31.08832.51651.79701.7970
H41.08832.51651.79701.7970
H51.08832.51651.79701.7970

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 107.576 Br2 C1 H4 107.576
Br2 C1 H5 107.576 H3 C1 H4 111.298
H3 C1 H5 111.298 H4 C1 H5 111.298
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.234      
2 Br -0.135      
3 H 0.123      
4 H 0.123      
5 H 0.123      


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 -1.922 1.922
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.729 0.000 0.000
y 0.000 -25.729 0.000
z 0.000 0.000 -22.056
Traceless
 xyz
x -1.836 0.000 0.000
y 0.000 -1.836 0.000
z 0.000 0.000 3.672
Polar
3z2-r27.345
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 4.133 0.000 0.000
y 0.000 4.133 -0.000
z 0.000 -0.000 6.401


<r2> (average value of r2) Å2
<r2> 49.533
(<r2>)1/2 7.038