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

using model chemistry: wB97X-D/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 wB97X-D/daug-cc-pVDZ
 hartrees
Energy at 0K-2614.090132
Energy at 298.15K 
HF Energy-2614.090132
Nuclear repulsion energy88.969987
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/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 3088 3088 18.52 149.69 0.00 0.01
2 A1 1316 1316 17.06 1.30 0.11 0.20
3 A1 633 633 12.66 23.22 0.17 0.29
4 E 3210 3210 1.72 51.25 0.75 0.86
4 E 3210 3210 1.73 51.27 0.75 0.86
5 E 1445 1445 6.19 3.30 0.75 0.86
5 E 1445 1445 6.23 3.30 0.75 0.86
6 E 962 962 4.00 0.40 0.75 0.86
6 E 962 962 4.00 0.39 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8136.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8136.3 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/daug-cc-pVDZ
ABC
5.15826 0.31847 0.31847

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.523
Br2 0.000 0.000 0.420
H3 0.000 1.040 -1.859
H4 0.900 -0.520 -1.859
H5 -0.900 -0.520 -1.859

Atom - Atom Distances (Å)
  C1 Br2 H3 H4 H5
C11.94301.09281.09281.0928
Br21.94302.50542.50542.5054
H31.09282.50541.80081.8008
H41.09282.50541.80081.8008
H51.09282.50541.80081.8008

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 107.939 Br2 C1 H4 107.939
Br2 C1 H5 107.939 H3 C1 H4 110.959
H3 C1 H5 110.959 H4 C1 H5 110.959
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.193      
2 Br 0.200      
3 H -0.131      
4 H -0.131      
5 H -0.131      


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 -1.972 1.972
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.934 0.000 0.000
y 0.000 -25.934 0.000
z 0.000 0.000 -22.046
Traceless
 xyz
x -1.944 0.000 0.000
y 0.000 -1.944 0.000
z 0.000 0.000 3.888
Polar
3z2-r27.775
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 4.880 0.000 0.000
y 0.000 4.877 -0.000
z 0.000 -0.000 6.750


<r2> (average value of r2) Å2
<r2> 49.095
(<r2>)1/2 7.007