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All results from a given calculation for Li2O (dilithium oxide)

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 D*H 1Σg
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-89.769221
Energy at 298.15K-89.769399
HF Energy-89.769221
Nuclear repulsion energy17.366231
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 Σg 873 829 0.00      
2 Σu 1136 1079 384.42      
3 Πu 79 75 168.47      
3 Πu 79 75 168.47      

Unscaled Zero Point Vibrational Energy (zpe) 1083.1 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 1028.5 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*
B
0.46943

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.000
Li2 0.000 0.000 1.600
Li3 0.000 0.000 -1.600

Atom - Atom Distances (Å)
  O1 Li2 Li3
O11.59981.5998
Li21.59983.1995
Li31.59983.1995

picture of dilithium oxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Li2 O1 Li3 180.000
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 O -0.649      
2 Li 0.325      
3 Li 0.325      


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 -13.365 0.000 0.000
y 0.000 -13.365 0.000
z 0.000 0.000 6.453
Traceless
 xyz
x -9.909 0.000 0.000
y 0.000 -9.909 0.000
z 0.000 0.000 19.818
Polar
3z2-r239.637
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 5.548 0.000 0.000
y 0.000 5.548 0.000
z 0.000 0.000 10.271


<r2> (average value of r2) Å2
<r2> 19.577
(<r2>)1/2 4.425