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All results from a given calculation for Li2S (dilithium sulfide)

using model chemistry: HSEh1PBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
1 2 no C2V 1A1

Conformer 1 (D*H)

Jump to S1C2
Energy calculated at HSEh1PBE/6-311G**
 hartrees
Energy at 0K-413.154510
Energy at 298.15K-413.154248
HF Energy-413.154510
Nuclear repulsion energy25.706388
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 HSEh1PBE/6-311G**
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 592 568 0.00      
2 Σu 681 654 303.21      
3 Πu 17 16 144.85      
3 Πu 17 16 144.85      

Unscaled Zero Point Vibrational Energy (zpe) 653.3 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 627.4 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 HSEh1PBE/6-311G**
B
0.28069

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G**

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.000
Li2 0.000 0.000 2.069
Li3 0.000 0.000 -2.069

Atom - Atom Distances (Å)
  S1 Li2 Li3
S12.06882.0688
Li22.06884.1377
Li32.06884.1377

picture of dilithium sulfide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Li2 S1 Li3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -1.030      
2 Li 0.515      
3 Li 0.515      


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 -23.860 0.000 0.000
y 0.000 -23.860 0.000
z 0.000 0.000 13.346
Traceless
 xyz
x -18.603 0.000 0.000
y 0.000 -18.603 0.000
z 0.000 0.000 37.206
Polar
3z2-r274.413
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 7.361 0.000 0.000
y 0.000 7.361 0.000
z 0.000 0.000 11.435


<r2> (average value of r2) Å2
<r2> 32.837
(<r2>)1/2 5.730

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at HSEh1PBE/6-311G**
 hartrees
Energy at 0K-413.154510
Energy at 298.15K-413.154687
HF Energy-413.154510
Nuclear repulsion energy25.705168
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 HSEh1PBE/6-311G**
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 592 568 0.00      
2 A1 18 17 144.85      
3 B2 681 654 303.21      

Unscaled Zero Point Vibrational Energy (zpe) 645.0 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 619.5 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 HSEh1PBE/6-311G**
B
0.28066

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.000
Li2 0.000 2.069 -0.001
Li3 0.000 -2.069 -0.001

Atom - Atom Distances (Å)
  S1 Li2 Li3
S12.06892.0689
Li22.06894.1379
Li32.06894.1379

picture of dilithium sulfide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Li2 S1 Li3 179.946
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -1.030      
2 Li 0.515      
3 Li 0.515      


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 -0.006 0.006
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.860 0.000 0.000
y 0.000 13.349 0.000
z 0.000 0.000 -23.860
Traceless
 xyz
x -18.605 0.000 0.000
y 0.000 37.210 0.000
z 0.000 0.000 -18.605
Polar
3z2-r2-37.210
x2-y2-37.210
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.362 0.000 0.000
y 0.000 11.437 0.000
z 0.000 0.000 7.362


<r2> (average value of r2) Å2
<r2> 32.839
(<r2>)1/2 5.731