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All results from a given calculation for ZnCH3 (Zinc monomethyl)

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-1810.494303
Energy at 298.15K 
Nuclear repulsion energy80.554838
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 mPW1PW91/3-21G*
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 3066 2911 14.65      
2 A1 1324 1257 3.65      
3 A1 650 618 15.00      
4 E 3140 2982 9.47      
4 E 3140 2982 9.46      
5 E 1489 1414 12.94      
5 E 1489 1414 12.94      
6 E 663 630 3.15      
6 E 663 630 3.14      

Unscaled Zero Point Vibrational Energy (zpe) 7811.6 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 7417.9 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 mPW1PW91/3-21G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 0.000 0.000 0.457
C2 0.000 0.000 -1.386
H3 0.000 1.017 -1.794
H4 0.881 -0.508 -1.794
H5 -0.881 -0.508 -1.794

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4 H5
Zn11.84312.47012.47012.4701
C21.84311.09571.09571.0957
H32.47011.09571.76141.7614
H42.47011.09571.76141.7614
H52.47011.09571.76141.7614

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 111.858 Zn1 C2 H4 111.858
Zn1 C2 H5 111.858 H3 C2 H4 106.983
H3 C2 H5 106.983 H4 C2 H5 106.983
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Zn 0.355      
2 C -1.082      
3 H 0.242      
4 H 0.242      
5 H 0.242      


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 -0.412 0.412
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.622 0.000 0.000
y 0.000 -21.622 0.000
z 0.000 0.000 -25.934
Traceless
 xyz
x 2.156 0.000 0.000
y 0.000 2.156 0.000
z 0.000 0.000 -4.312
Polar
3z2-r2-8.624
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 7.375 0.000 0.000
y 0.000 7.378 0.001
z 0.000 0.001 7.703


<r2> (average value of r2) Å2
<r2> 44.955
(<r2>)1/2 6.705