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

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-1859.011605
Energy at 298.15K-1859.017094
Nuclear repulsion energy166.763900
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 mPW1PW91/6-31G*
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' 3064 2906 0.00      
2 A1' 1294 1227 0.00      
3 A1' 543 515 0.00      
4 A1" 40 38 0.00      
5 A2" 3062 2904 27.08      
6 A2" 1291 1224 12.07      
7 A2" 642 609 39.18      
8 E' 3139 2977 33.41      
8 E' 3139 2977 33.42      
9 E' 1484 1407 2.09      
9 E' 1484 1407 2.09      
10 E' 752 713 88.29      
10 E' 752 713 88.29      
11 E' 123 116 2.55      
11 E' 123 116 2.55      
12 E" 3139 2977 0.00      
12 E" 3139 2977 0.00      
13 E" 1481 1404 0.00      
13 E" 1481 1404 0.00      
14 E" 645 612 0.00      
14 E" 645 612 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 15730.8 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 14917.5 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 mPW1PW91/6-31G*
ABC
2.70470 0.13657 0.13657

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

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 2.324
H5 0.000 1.015 -2.324
H6 -0.879 -0.508 2.324
H7 0.879 -0.508 2.324
H8 0.879 -0.508 -2.324
H9 -0.879 -0.508 -2.324

Atom - Atom Distances (Å)
  Zn1 C2 C3 H4 H5 H6 H7 H8 H9
Zn11.91111.91112.53632.53632.53632.53632.53632.5363
C21.91113.82211.09614.35531.09611.09614.35534.3553
C31.91113.82214.35531.09614.35534.35531.09611.0961
H42.53631.09614.35534.64861.75851.75854.97004.9700
H52.53634.35531.09614.64864.97004.97001.75851.7585
H62.53631.09614.35531.75854.97001.75854.97004.6486
H72.53631.09614.35531.75854.97001.75854.64864.9700
H82.53634.35531.09614.97001.75854.97004.64861.7585
H92.53634.35531.09614.97001.75854.64864.97001.7585

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 112.147 Zn1 C2 H6 112.147
Zn1 C2 H7 112.147 Zn1 C3 H5 112.147
Zn1 C3 H8 112.147 Zn1 C3 H9 112.147
C2 Zn1 C3 180.000 H4 C2 H6 106.667
H4 C2 H7 106.667 H5 C3 H8 106.667
H5 C3 H9 106.667 H6 C2 H7 106.667
H8 C3 H9 106.667
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Zn 0.621      
2 C -0.866      
3 C -0.866      
4 H 0.185      
5 H 0.185      
6 H 0.185      
7 H 0.185      
8 H 0.185      
9 H 0.185      


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 -27.403 0.000 0.000
y 0.000 -27.403 0.000
z 0.000 0.000 -33.195
Traceless
 xyz
x 2.896 0.000 0.000
y 0.000 2.896 0.000
z 0.000 0.000 -5.792
Polar
3z2-r2-11.584
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 5.476 0.000 0.000
y 0.000 5.477 0.000
z 0.000 0.000 8.225


<r2> (average value of r2) Å2
<r2> 100.745
(<r2>)1/2 10.037