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

using model chemistry: mPW1PW91/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 mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-2814.369473
Energy at 298.15K 
HF Energy-2814.369473
Nuclear repulsion energy165.582693
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 mPW1PW91/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 3043 2916 18.12 131.81 0.00 0.00
2 A1 1143 1095 1.09 58.51 0.10 0.18
3 A1 607 581 74.79 12.92 0.09 0.16
4 A1 300 287 14.62 18.56 0.19 0.32
5 E 3139 3008 7.88 131.53 0.75 0.86
5 E 3139 3008 7.88 131.51 0.75 0.86
6 E 1428 1368 0.01 3.38 0.75 0.86
6 E 1428 1368 0.01 3.38 0.75 0.86
7 E 583 559 85.07 4.28 0.75 0.86
7 E 583 559 85.07 4.28 0.75 0.86
8 E 104 99 25.39 0.62 0.75 0.86
8 E 104 99 25.39 0.62 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7799.6 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 7474.3 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 mPW1PW91/cc-pVDZ
ABC
5.29710 0.05434 0.05434

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.193
Mg2 0.000 0.000 -1.119
Br3 0.000 0.000 1.239
H4 0.000 1.026 -3.596
H5 0.888 -0.513 -3.596
H6 -0.888 -0.513 -3.596

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.07424.43211.10221.10221.1022
Mg22.07422.35802.68112.68112.6811
Br34.43212.35804.94264.94264.9426
H41.10222.68114.94261.77701.7770
H51.10222.68114.94261.77701.7770
H61.10222.68114.94261.77701.7770

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 111.437
Mg2 C1 H5 111.437 Mg2 C1 H6 111.437
H4 C1 H5 107.436 H4 C1 H6 107.436
H5 C1 H6 107.436
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.384      
2 Mg 0.537      
3 Br -0.330      
4 H 0.059      
5 H 0.059      
6 H 0.059      


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 -2.189 2.189
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.234 0.000 0.000
y 0.000 -34.234 0.000
z 0.000 0.000 -42.782
Traceless
 xyz
x 4.274 0.000 0.000
y 0.000 4.274 0.000
z 0.000 0.000 -8.548
Polar
3z2-r2-17.096
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 6.040 0.000 0.000
y 0.000 6.040 0.000
z 0.000 0.000 10.635


<r2> (average value of r2) Å2
<r2> 195.041
(<r2>)1/2 13.966