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 ZnCH3 (Zinc monomethyl)

using model chemistry: M06-2X/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at M06-2X/3-21G*
 hartrees
Energy at 0K-1810.332650
Energy at 298.15K-1810.335705
HF Energy-1810.332650
Nuclear repulsion energy79.376216
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 M06-2X/3-21G*
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 3038 2878 7.70      
2 A1 1291 1223 5.23      
3 A1 640 606 10.82      
4 E 3114 2950 6.16      
4 E 3114 2950 6.31      
5 E 1484 1406 10.81      
5 E 1484 1406 10.98      
6 E 632 598 4.95      
6 E 632 598 5.06      

Unscaled Zero Point Vibrational Energy (zpe) 7714.3 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 7307.0 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 M06-2X/3-21G*
ABC
5.34767 0.34656 0.34656

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 0.000 0.000 0.464
C2 0.000 0.000 -1.416
H3 0.000 1.021 -1.810
H4 0.884 -0.511 -1.810
H5 -0.884 -0.511 -1.810

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4 H5
Zn11.87972.49312.49312.4931
C21.87971.09471.09471.0947
H32.49311.09471.76861.7686
H42.49311.09471.76861.7686
H52.49311.09471.76861.7686

picture of Zinc monomethyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Zn1 C2 H3 111.133 Zn1 C2 H4 111.133
Zn1 C2 H5 111.133 H3 C2 H4 107.759
H3 C2 H5 107.759 H4 C2 H5 107.759
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Zn 0.326      
2 C -0.998      
3 H 0.224      
4 H 0.224      
5 H 0.224      


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 -0.247 0.247
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.451 0.000 0.000
y 0.000 -21.451 0.000
z 0.000 0.000 -25.578
Traceless
 xyz
x 2.064 0.000 0.000
y 0.000 2.064 0.000
z 0.000 0.000 -4.128
Polar
3z2-r2-8.255
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 6.597 0.000 0.000
y 0.000 6.597 0.005
z 0.000 0.005 7.607


<r2> (average value of r2) Å2
<r2> 45.701
(<r2>)1/2 6.760