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

using model chemistry: TPSSh/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at TPSSh/cc-pVTZ
 hartrees
Energy at 0K-1859.285933
Energy at 298.15K 
HF Energy-1859.285933
Nuclear repulsion energy164.448799
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 TPSSh/cc-pVTZ
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' 3011 2916 0.00      
2 A1' 1216 1177 0.00      
3 A1' 503 487 0.00      
4 A1" 12i 11i 0.00      
5 A2" 3009 2913 43.78      
6 A2" 1218 1179 0.86      
7 A2" 605 586 51.29      
8 E' 3082 2985 37.10      
8 E' 3082 2985 37.11      
9 E' 1470 1423 0.52      
9 E' 1470 1423 0.52      
10 E' 712 690 57.31      
10 E' 712 690 57.30      
11 E' 136 131 2.60      
11 E' 136 131 2.60      
12 E" 3082 2985 0.00      
12 E" 3082 2985 0.00      
13 E" 1465 1418 0.00      
13 E" 1465 1418 0.00      
14 E" 616 597 0.00      
14 E" 616 597 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 15338.6 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 14852.4 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 TPSSh/cc-pVTZ
ABC
2.68205 0.13227 0.13227

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

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 1.947
C3 0.000 0.000 -1.947
H4 0.000 1.020 2.343
H5 0.000 1.020 -2.343
H6 -0.883 -0.510 2.343
H7 0.883 -0.510 2.343
H8 0.883 -0.510 -2.343
H9 -0.883 -0.510 -2.343

Atom - Atom Distances (Å)
  Zn1 C2 C3 H4 H5 H6 H7 H8 H9
Zn11.94711.94712.55492.55492.55492.55492.55492.5549
C21.94713.89431.09364.40931.09361.09364.40934.4093
C31.94713.89434.40931.09364.40934.40931.09361.0936
H42.55491.09364.40934.68531.76601.76605.00715.0071
H52.55494.40931.09364.68535.00715.00711.76601.7660
H62.55491.09364.40931.76605.00711.76605.00714.6853
H72.55491.09364.40931.76605.00711.76604.68535.0071
H82.55494.40931.09365.00711.76605.00714.68531.7660
H92.55494.40931.09365.00711.76604.68535.00711.7660

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 111.201 Zn1 C2 H6 111.201
Zn1 C2 H7 111.201 Zn1 C3 H5 111.201
Zn1 C3 H8 111.201 Zn1 C3 H9 111.201
C2 Zn1 C3 180.000 H4 C2 H6 107.687
H4 C2 H7 107.687 H5 C3 H8 107.687
H5 C3 H9 107.687 H6 C2 H7 107.687
H8 C3 H9 107.687
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Zn 0.633      
2 C -0.521      
3 C -0.521      
4 H 0.068      
5 H 0.068      
6 H 0.068      
7 H 0.068      
8 H 0.068      
9 H 0.068      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.199 0.000 0.000
y 0.000 6.199 0.000
z 0.000 0.000 10.242


<r2> (average value of r2) Å2
<r2> 103.485
(<r2>)1/2 10.173