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

using model chemistry: BLYP/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 BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-1858.921726
Energy at 298.15K-1858.926982
Nuclear repulsion energy166.437354
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 BLYP/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' 2949 2932 0.00      
2 A1' 1208 1201 0.00      
3 A1' 532 529 0.00      
4 A1" 31 31 0.00      
5 A2" 2946 2930 28.04      
6 A2" 1207 1200 0.04      
7 A2" 601 598 42.60      
8 E' 3013 2996 35.07      
8 E' 3013 2996 35.07      
9 E' 1422 1414 0.08      
9 E' 1422 1414 0.08      
10 E' 716 712 59.82      
10 E' 716 712 59.82      
11 E' 91 91 0.99      
11 E' 91 91 0.99      
12 E" 3013 2996 0.00      
12 E" 3013 2996 0.00      
13 E" 1416 1408 0.00      
13 E" 1416 1408 0.00      
14 E" 604 600 0.00      
14 E" 604 600 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 15011.8 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 14929.2 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 BLYP/6-31G(2df,p)
ABC
2.65738 0.13625 0.13625

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/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 1.914
C3 0.000 0.000 -1.914
H4 0.000 1.024 2.323
H5 0.000 1.024 -2.323
H6 -0.887 -0.512 2.323
H7 0.887 -0.512 2.323
H8 0.887 -0.512 -2.323
H9 -0.887 -0.512 -2.323

Atom - Atom Distances (Å)
  Zn1 C2 C3 H4 H5 H6 H7 H8 H9
Zn11.91391.91392.53922.53922.53922.53922.53922.5392
C21.91393.82771.10314.35941.10311.10314.35944.3594
C31.91393.82774.35941.10314.35944.35941.10311.1031
H42.53921.10314.35944.64691.77401.77404.97404.9740
H52.53924.35941.10314.64694.97404.97401.77401.7740
H62.53921.10314.35941.77404.97401.77404.97404.6469
H72.53921.10314.35941.77404.97401.77404.64694.9740
H82.53924.35941.10314.97401.77404.97404.64691.7740
H92.53924.35941.10314.97401.77404.64694.97401.7740

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 111.796 Zn1 C2 H6 111.796
Zn1 C2 H7 111.796 Zn1 C3 H5 111.796
Zn1 C3 H8 111.796 Zn1 C3 H9 111.796
C2 Zn1 C3 180.000 H4 C2 H6 107.049
H4 C2 H7 107.049 H5 C3 H8 107.049
H5 C3 H9 107.049 H6 C2 H7 107.049
H8 C3 H9 107.049
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Zn 0.544      
2 C -0.614      
3 C -0.614      
4 H 0.114      
5 H 0.114      
6 H 0.114      
7 H 0.114      
8 H 0.114      
9 H 0.114      


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 -27.933 0.000 0.000
y 0.000 -27.933 0.000
z 0.000 0.000 -32.594
Traceless
 xyz
x 2.330 0.000 0.000
y 0.000 2.330 0.000
z 0.000 0.000 -4.661
Polar
3z2-r2-9.322
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 5.916 0.000 0.000
y 0.000 5.916 0.000
z 0.000 0.000 9.302


<r2> (average value of r2) Å2
<r2> 101.057
(<r2>)1/2 10.053