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

using model chemistry: PBEPBE/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 PBEPBE/6-31G
 hartrees
Energy at 0K-1858.473305
Energy at 298.15K-1858.478826
Nuclear repulsion energy166.478344
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 PBEPBE/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' 2974 2933 0.00      
2 A1' 1277 1260 0.00      
3 A1' 536 528 0.00      
4 A1" 40 39 0.00      
5 A2" 2972 2931 34.48      
6 A2" 1276 1259 20.47      
7 A2" 631 623 34.71      
8 E' 3059 3017 37.75      
8 E' 3059 3017 37.75      
9 E' 1448 1428 3.39      
9 E' 1448 1428 3.39      
10 E' 777 767 89.27      
10 E' 777 767 89.26      
11 E' 122 120 1.05      
11 E' 122 120 1.04      
12 E" 3060 3017 0.00      
12 E" 3060 3017 0.00      
13 E" 1444 1424 0.00      
13 E" 1444 1424 0.00      
14 E" 665 656 0.00      
14 E" 665 656 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 15428.0 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 15215.1 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 PBEPBE/6-31G
ABC
2.64496 0.13642 0.13642

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/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 1.912
C3 0.000 0.000 -1.912
H4 0.000 1.027 2.322
H5 0.000 1.027 -2.322
H6 -0.889 -0.513 2.322
H7 0.889 -0.513 2.322
H8 0.889 -0.513 -2.322
H9 -0.889 -0.513 -2.322

Atom - Atom Distances (Å)
  Zn1 C2 C3 H4 H5 H6 H7 H8 H9
Zn11.91241.91242.53932.53932.53932.53932.53932.5393
C21.91243.82471.10554.35751.10551.10554.35754.3575
C31.91243.82474.35751.10554.35754.35751.10551.1055
H42.53931.10554.35754.64501.77821.77824.97374.9737
H52.53934.35751.10554.64504.97374.97371.77821.7782
H62.53931.10554.35751.77824.97371.77824.97374.6450
H72.53931.10554.35751.77824.97371.77824.64504.9737
H82.53934.35751.10554.97371.77824.97374.64501.7782
H92.53934.35751.10554.97371.77824.64504.97371.7782

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 111.776 Zn1 C2 H6 111.776
Zn1 C2 H7 111.776 Zn1 C3 H5 111.776
Zn1 C3 H8 111.776 Zn1 C3 H9 111.776
C2 Zn1 C3 180.000 H4 C2 H6 107.071
H4 C2 H7 107.071 H5 C3 H8 107.071
H5 C3 H9 107.071 H6 C2 H7 107.071
H8 C3 H9 107.071
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Zn 0.549      
2 C -0.776      
3 C -0.776      
4 H 0.167      
5 H 0.167      
6 H 0.167      
7 H 0.167      
8 H 0.167      
9 H 0.167      


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 -27.913 0.000 0.000
y 0.000 -27.913 0.000
z 0.000 0.000 -32.454
Traceless
 xyz
x 2.271 0.000 0.000
y 0.000 2.271 0.000
z 0.000 0.000 -4.541
Polar
3z2-r2-9.082
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 5.738 0.000 0.000
y 0.000 5.738 0.000
z 0.000 0.000 8.534


<r2> (average value of r2) Å2
<r2> 100.953
(<r2>)1/2 10.048