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 Li2O (dilithium oxide)

using model chemistry: B3LYP/CEP-121G

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 B3LYP/CEP-121G
 hartrees
Energy at 0K-16.489051
Energy at 298.15K-16.489414
HF Energy-16.489051
Nuclear repulsion energy4.144699
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 B3LYP/CEP-121G
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 769 750 0.00      
2 Σu 1012 986 350.85      
3 Πu 144 140 228.43      
3 Πu 144 140 228.43      

Unscaled Zero Point Vibrational Energy (zpe) 1034.9 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 1008.5 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 B3LYP/CEP-121G
B
0.47167

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

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 1.596
Li3 0.000 0.000 -1.596

Atom - Atom Distances (Å)
  O1 Li2 Li3
O11.59591.5959
Li21.59593.1919
Li31.59593.1919

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 B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -1.126      
2 Li 0.563      
3 Li 0.563      


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 -12.467 0.000 0.000
y 0.000 -12.467 0.000
z 0.000 0.000 10.157
Traceless
 xyz
x -11.312 0.000 0.000
y 0.000 -11.312 0.000
z 0.000 0.000 22.624
Polar
3z2-r245.248
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 5.325 0.000 0.000
y 0.000 5.325 0.000
z 0.000 0.000 7.990


<r2> (average value of r2) Å2
<r2> 8.171
(<r2>)1/2 2.858