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

using model chemistry: MP2/6-31G(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 MP2/6-31G(2df,p)
 hartrees
Energy at 0K-1857.420283
Energy at 298.15K-1857.425764
Nuclear repulsion energy168.055263
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 MP2/6-31G(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' 3103 2931 0.00      
2 A1' 1278 1207 0.00      
3 A1' 558 527 0.00      
4 A1" 22 21 0.00      
5 A2" 3102 2930 10.41      
6 A2" 1275 1205 7.19      
7 A2" 648 612 42.26      
8 E' 3193 3016 17.12      
8 E' 3193 3016 17.12      
9 E' 1491 1408 0.59      
9 E' 1491 1408 0.59      
10 E' 746 704 82.31      
10 E' 746 704 82.31      
11 E' 124 117 2.78      
11 E' 124 117 2.78      
12 E" 3193 3016 0.00      
12 E" 3193 3016 0.00      
13 E" 1485 1403 0.00      
13 E" 1485 1403 0.00      
14 E" 639 604 0.00      
14 E" 639 604 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 15863.7 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 14983.3 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 MP2/6-31G(2df,p)
ABC
2.72318 0.13886 0.13886

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(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 1.895
C3 0.000 0.000 -1.895
H4 0.000 1.012 2.306
H5 0.000 1.012 -2.306
H6 -0.876 -0.506 2.306
H7 0.876 -0.506 2.306
H8 0.876 -0.506 -2.306
H9 -0.876 -0.506 -2.306

Atom - Atom Distances (Å)
  Zn1 C2 C3 H4 H5 H6 H7 H8 H9
Zn11.89461.89462.51822.51822.51822.51822.51822.5182
C21.89463.78911.09234.32071.09231.09234.32074.3207
C31.89463.78914.32071.09234.32074.32071.09231.0923
H42.51821.09234.32074.61211.75251.75254.93384.9338
H52.51824.32071.09234.61214.93384.93381.75251.7525
H62.51821.09234.32071.75254.93381.75254.93384.6121
H72.51821.09234.32071.75254.93381.75254.61214.9338
H82.51824.32071.09234.93381.75254.93384.61211.7525
H92.51824.32071.09234.93381.75254.61214.93381.7525

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 112.131 Zn1 C2 H6 112.131
Zn1 C2 H7 112.131 Zn1 C3 H5 112.131
Zn1 C3 H8 112.131 Zn1 C3 H9 112.131
C2 Zn1 C3 180.000 H4 C2 H6 106.685
H4 C2 H7 106.685 H5 C3 H8 106.685
H5 C3 H9 106.685 H6 C2 H7 106.685
H8 C3 H9 106.685
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability