return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3LYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at B3LYP/6-311G*
 hartrees
Energy at 0K-1859.155746
Energy at 298.15K-1859.161354
Nuclear repulsion energy164.899056
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 B3LYP/6-311G*
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' 3026 2924 0.00      
2 A1' 1276 1233 0.00      
3 A1' 519 501 0.00      
4 A1" 20 19 0.00      
5 A2" 3024 2922 81.45      
6 A2" 1278 1235 9.14      
7 A2" 617 597 35.49      
8 E' 3091 2987 61.91      
8 E' 3091 2987 61.92      
9 E' 1484 1434 8.12      
9 E' 1484 1434 8.12      
10 E' 761 735 78.48      
10 E' 761 735 78.48      
11 E' 160 154 6.12      
11 E' 160 154 6.12      
12 E" 3090 2986 0.00      
12 E" 3090 2986 0.00      
13 E" 1480 1431 0.00      
13 E" 1480 1431 0.00      
14 E" 691 668 0.00      
14 E" 691 668 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 15636.2 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 15109.2 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 B3LYP/6-311G*
ABC
2.70426 0.13305 0.13305

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

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 1.939
C3 0.000 0.000 -1.939
H4 0.000 1.015 2.347
H5 0.000 1.015 -2.347
H6 -0.879 -0.508 2.347
H7 0.879 -0.508 2.347
H8 0.879 -0.508 -2.347
H9 -0.879 -0.508 -2.347

Atom - Atom Distances (Å)
  Zn1 C2 C3 H4 H5 H6 H7 H8 H9
Zn11.93941.93942.55732.55732.55732.55732.55732.5573
C21.93943.87881.09414.40511.09411.09414.40514.4051
C31.93943.87884.40511.09414.40514.40511.09411.0941
H42.55731.09414.40514.69431.75861.75865.01295.0129
H52.55734.40511.09414.69435.01295.01291.75861.7586
H62.55731.09414.40511.75865.01291.75865.01294.6943
H72.55731.09414.40511.75865.01291.75864.69435.0129
H82.55734.40511.09415.01291.75865.01294.69431.7586
H92.55734.40511.09415.01291.75864.69435.01291.7586

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 111.879 Zn1 C2 H6 111.879
Zn1 C2 H7 111.879 Zn1 C3 H5 111.879
Zn1 C3 H8 111.879 Zn1 C3 H9 111.879
C2 Zn1 C3 180.000 H4 C2 H6 106.960
H4 C2 H7 106.960 H5 C3 H8 106.960
H5 C3 H9 106.960 H6 C2 H7 106.960
H8 C3 H9 106.960
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Zn 1.080      
2 C -1.214      
3 C -1.214      
4 H 0.225      
5 H 0.225      
6 H 0.225      
7 H 0.225      
8 H 0.225      
9 H 0.225      


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 -27.965 0.000 0.000
y 0.000 -27.965 0.000
z 0.000 0.000 -36.062
Traceless
 xyz
x 4.049 0.000 0.000
y 0.000 4.049 0.000
z 0.000 0.000 -8.097
Polar
3z2-r2-16.195
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 4.528 0.000 0.000
y 0.000 4.528 0.000
z 0.000 0.000 9.134


<r2> (average value of r2) Å2
<r2> 103.527
(<r2>)1/2 10.175