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All results from a given calculation for CH3MgBr (Methyl Magnesium Bromide)

using model chemistry: wB97X-D/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 wB97X-D/Def2TZVPP
 hartrees
Energy at 0K-2814.277834
Energy at 298.15K 
HF Energy-2814.277834
Nuclear repulsion energy166.237782
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/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 3038 2902 21.36 146.50 0.00 0.00
2 A1 1175 1123 0.17 80.78 0.16 0.28
3 A1 606 579 89.03 13.21 0.11 0.20
4 A1 299 286 14.79 18.54 0.15 0.26
5 E 3118 2979 12.10 112.18 0.75 0.86
5 E 3118 2979 12.13 112.61 0.75 0.86
6 E 1455 1390 0.00 1.08 0.75 0.86
6 E 1455 1390 0.00 1.07 0.75 0.86
7 E 586 560 79.29 4.37 0.75 0.86
7 E 586 560 79.23 4.36 0.75 0.86
8 E 100 96 29.30 0.91 0.75 0.86
8 E 100 96 29.28 0.91 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7818.2 cm-1
Scaled (by 0.9552) Zero Point Vibrational Energy (zpe) 7468.0 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 wB97X-D/Def2TZVPP
ABC
5.40948 0.05473 0.05473

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.182
Mg2 0.000 0.000 -1.114
Br3 0.000 0.000 1.235
H4 0.000 1.015 -3.585
H5 0.879 -0.508 -3.585
H6 -0.879 -0.508 -3.585

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.06704.41631.09241.09241.0924
Mg22.06702.34932.67082.67082.6708
Br34.41632.34934.92534.92534.9253
H41.09242.67084.92531.75841.7584
H51.09242.67084.92531.75841.7584
H61.09242.67084.92531.75841.7584

picture of Methyl Magnesium Bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 Mg2 Br3 180.000 Mg2 C1 H4 111.663
Mg2 C1 H5 111.663 Mg2 C1 H6 111.663
H4 C1 H5 107.193 H4 C1 H6 107.193
H5 C1 H6 107.193
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.690      
2 Mg 0.803      
3 Br -0.464      
4 H 0.117      
5 H 0.117      
6 H 0.117      


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 -2.129 2.129
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.570 0.000 0.000
y 0.000 -34.570 0.000
z 0.000 0.000 -44.145
Traceless
 xyz
x 4.787 0.000 0.000
y 0.000 4.787 0.000
z 0.000 0.000 -9.574
Polar
3z2-r2-19.149
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 7.293 0.000 0.000
y 0.000 7.292 0.000
z 0.000 0.000 11.177


<r2> (average value of r2) Å2
<r2> 194.231
(<r2>)1/2 13.937