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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at HF/6-31G(2df,p)
 hartrees
Energy at 0K-1817.074881
Energy at 298.15K 
Nuclear repulsion energy75.586503
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 3147 2850 42.78      
2 A1 1266 1147 13.27      
3 A1 503 456 8.82      
4 E 3230 2924 23.00      
4 E 3230 2924 23.00      
5 E 1564 1416 2.73      
5 E 1564 1416 2.73      
6 E 626 567 1.32      
6 E 626 567 1.32      

Unscaled Zero Point Vibrational Energy (zpe) 7877.7 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 7133.2 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 HF/6-31G(2df,p)
See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 0.000 0.000 0.492
C2 0.000 0.000 -1.511
H3 0.000 1.017 -1.895
H4 0.881 -0.508 -1.895
H5 -0.881 -0.508 -1.895

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4 H5
Zn12.00262.59432.59432.5943
C22.00261.08691.08691.0869
H32.59431.08691.76121.7612
H42.59431.08691.76121.7612
H52.59431.08691.76121.7612

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 110.692 Zn1 C2 H4 110.692
Zn1 C2 H5 110.692 H3 C2 H4 108.223
H3 C2 H5 108.223 H4 C2 H5 108.223
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 0.400      
2 C -0.815      
3 H 0.138      
4 H 0.138      
5 H 0.138      


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 0.062 0.062
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.408 0.000 0.000
y 0.000 -21.408 0.000
z 0.000 0.000 -27.237
Traceless
 xyz
x 2.914 0.000 0.000
y 0.000 2.914 0.000
z 0.000 0.000 -5.828
Polar
3z2-r2-11.657
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 7.461 0.000 0.000
y 0.000 7.461 0.000
z 0.000 0.000 8.412


<r2> (average value of r2) Å2
<r2> 49.410
(<r2>)1/2 7.029