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All results from a given calculation for Zn(CH3)2 (dimethyl zinc)

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-1858.882259
Energy at 298.15K-1858.887740
Nuclear repulsion energy166.730817
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 B3PW91/6-31G**
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' 3045 2918 0.00      
2 A1' 1272 1219 0.00      
3 A1' 542 519 0.00      
4 A1" 39 38 0.00      
5 A2" 3043 2916 27.13      
6 A2" 1268 1215 8.02      
7 A2" 639 613 41.31      
8 E' 3123 2993 33.11      
8 E' 3123 2993 33.11      
9 E' 1454 1394 1.18      
9 E' 1454 1394 1.18      
10 E' 749 718 82.83      
10 E' 749 718 82.83      
11 E' 121 116 2.29      
11 E' 121 116 2.29      
12 E" 3123 2993 0.00      
12 E" 3123 2993 0.00      
13 E" 1451 1391 0.00      
13 E" 1451 1391 0.00      
14 E" 643 617 0.00      
14 E" 643 617 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 15588.2 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 14939.7 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 B3PW91/6-31G**
ABC
2.70379 0.13652 0.13652

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 0.000 0.000 0.000
C2 0.000 0.000 1.911
C3 0.000 0.000 -1.911
H4 0.000 1.015 2.325
H5 0.000 1.015 -2.325
H6 -0.879 -0.508 2.325
H7 0.879 -0.508 2.325
H8 0.879 -0.508 -2.325
H9 -0.879 -0.508 -2.325

Atom - Atom Distances (Å)
  Zn1 C2 C3 H4 H5 H6 H7 H8 H9
Zn11.91131.91132.53722.53722.53722.53722.53722.5372
C21.91133.82261.09654.35641.09651.09654.35644.3564
C31.91133.82264.35641.09654.35644.35641.09651.0965
H42.53721.09654.35644.65031.75881.75884.97174.9717
H52.53724.35641.09654.65034.97174.97171.75881.7588
H62.53721.09654.35641.75884.97171.75884.97174.6503
H72.53721.09654.35641.75884.97171.75884.65034.9717
H82.53724.35641.09654.97171.75884.97174.65031.7588
H92.53724.35641.09654.97171.75884.65034.97171.7588

picture of dimethyl zinc state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Zn1 C2 H4 112.174 Zn1 C2 H6 112.174
Zn1 C2 H7 112.174 Zn1 C3 H5 112.174
Zn1 C3 H8 112.174 Zn1 C3 H9 112.174
C2 Zn1 C3 180.000 H4 C2 H6 106.638
H4 C2 H7 106.638 H5 C3 H8 106.638
H5 C3 H9 106.638 H6 C2 H7 106.638
H8 C3 H9 106.638
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Zn 0.601      
2 C -0.713      
3 C -0.713      
4 H 0.137      
5 H 0.137      
6 H 0.137      
7 H 0.137      
8 H 0.137      
9 H 0.137      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.454 0.000 0.000
y 0.000 -27.454 0.000
z 0.000 0.000 -32.999
Traceless
 xyz
x 2.772 0.000 0.000
y 0.000 2.772 0.000
z 0.000 0.000 -5.545
Polar
3z2-r2-11.089
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 5.582 0.000 0.000
y 0.000 5.582 0.000
z 0.000 0.000 8.420


<r2> (average value of r2) Å2
<r2> 100.762
(<r2>)1/2 10.038