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

using model chemistry: wB97X-D/STO-3G

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/STO-3G
 hartrees
Energy at 0K-2783.165635
Energy at 298.15K 
HF Energy-2783.165635
Nuclear repulsion energy175.082969
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/STO-3G
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 3306 3306 2.26 49.21 0.00 0.01
2 A1 1490 1490 1.09 1.30 0.32 0.49
3 A1 845 845 93.27 3.60 0.27 0.43
4 A1 410 410 9.61 7.19 0.28 0.44
5 E 3480 3480 8.93 36.89 0.75 0.86
5 E 3480 3480 8.94 36.91 0.75 0.86
6 E 1757 1757 0.09 15.09 0.75 0.86
6 E 1757 1757 0.09 15.09 0.75 0.86
7 E 755 755 50.96 0.29 0.75 0.86
7 E 755 755 50.95 0.28 0.75 0.86
8 E 123 123 46.86 0.07 0.75 0.86
8 E 123 123 46.86 0.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9139.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9139.9 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/STO-3G
ABC
5.42832 0.06102 0.06102

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.010
Mg2 0.000 0.000 -1.046
Br3 0.000 0.000 1.169
H4 0.000 1.013 -3.430
H5 0.878 -0.507 -3.430
H6 -0.878 -0.507 -3.430

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C11.96414.17881.09711.09711.0971
Mg21.96412.21472.59072.59072.5907
Br34.17882.21474.70934.70934.7093
H41.09712.59074.70931.75541.7554
H51.09712.59074.70931.75541.7554
H61.09712.59074.70931.75541.7554

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 112.516
Mg2 C1 H5 112.516 Mg2 C1 H6 112.516
H4 C1 H5 106.262 H4 C1 H6 106.262
H5 C1 H6 106.262
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.477      
2 Mg 0.852      
3 Br -0.460      
4 H 0.028      
5 H 0.028      
6 H 0.028      


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 -2.090 2.090
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.157 0.000 0.000
y 0.000 -29.157 0.000
z 0.000 0.000 -42.444
Traceless
 xyz
x 6.644 0.000 0.000
y 0.000 6.644 0.000
z 0.000 0.000 -13.287
Polar
3z2-r2-26.574
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 1.444 0.000 0.000
y 0.000 1.443 0.000
z 0.000 0.000 4.933


<r2> (average value of r2) Å2
<r2> 174.658
(<r2>)1/2 13.216