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

using model chemistry: HF/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at HF/6-31G(2df,p)
 hartrees
Energy at 0K-1856.719875
Energy at 298.15K-1856.725253
Nuclear repulsion energy163.370071
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 HF/6-31G(2df,p)
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' 3142 2845 0.00      
2 A1' 1336 1209 0.00      
3 A1' 512 463 0.00      
4 A1" 22 20 0.00      
5 A2" 3140 2843 56.88      
6 A2" 1331 1206 2.86      
7 A2" 603 546 44.69      
8 E' 3208 2905 60.23      
8 E' 3208 2905 60.23      
9 E' 1575 1426 0.08      
9 E' 1575 1426 0.08      
10 E' 733 664 94.05      
10 E' 733 664 94.05      
11 E' 109 99 7.75      
11 E' 109 99 7.75      
12 E" 3208 2905 0.00      
12 E" 3208 2905 0.00      
13 E" 1571 1422 0.00      
13 E" 1571 1422 0.00      
14 E" 637 577 0.00      
14 E" 637 577 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 16084.5 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 14564.5 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 HF/6-31G(2df,p)
ABC
2.72846 0.13003 0.13003

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

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 1.965
C3 0.000 0.000 -1.965
H4 0.000 1.011 2.368
H5 0.000 1.011 -2.368
H6 -0.875 -0.505 2.368
H7 0.875 -0.505 2.368
H8 0.875 -0.505 -2.368
H9 -0.875 -0.505 -2.368

Atom - Atom Distances (Å)
  Zn1 C2 C3 H4 H5 H6 H7 H8 H9
Zn11.96471.96472.57472.57472.57472.57472.57472.5747
C21.96473.92941.08834.44911.08831.08834.44914.4491
C31.96473.92944.44911.08834.44914.44911.08831.0883
H42.57471.08834.44914.73601.75081.75085.04925.0492
H52.57474.44911.08834.73605.04925.04921.75081.7508
H62.57471.08834.44911.75085.04921.75085.04924.7360
H72.57471.08834.44911.75085.04921.75084.73605.0492
H82.57474.44911.08835.04921.75085.04924.73601.7508
H92.57474.44911.08835.04921.75084.73605.04921.7508

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 111.749 Zn1 C2 H6 111.749
Zn1 C2 H7 111.749 Zn1 C3 H5 111.749
Zn1 C3 H8 111.749 Zn1 C3 H9 111.749
C2 Zn1 C3 180.000 H4 C2 H6 107.100
H4 C2 H7 107.100 H5 C3 H8 107.100
H5 C3 H9 107.100 H6 C2 H7 107.100
H8 C3 H9 107.100
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Zn 0.838      
2 C -0.820      
3 C -0.820      
4 H 0.134      
5 H 0.134      
6 H 0.134      
7 H 0.134      
8 H 0.134      
9 H 0.134      


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 -27.213 0.000 0.000
y 0.000 -27.213 0.000
z 0.000 0.000 -35.976
Traceless
 xyz
x 4.381 0.000 0.000
y 0.000 4.381 0.000
z 0.000 0.000 -8.762
Polar
3z2-r2-17.525
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 5.337 0.000 0.000
y 0.000 5.337 0.000
z 0.000 0.000 7.993


<r2> (average value of r2) Å2
<r2> 104.917
(<r2>)1/2 10.243