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

using model chemistry: HSEh1PBE/6-31G

19 10 17 12 22

States and conformations

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

Conformer 1 (D*H)

Jump to S1C2
Energy calculated at HSEh1PBE/6-31G
 hartrees
Energy at 0K-413.109282
Energy at 298.15K-413.109056
HF Energy-413.109282
Nuclear repulsion energy25.324909
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/6-31G
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 572 547 0.00      
2 Σu 672 643 309.66      
3 Πu 32 30 137.38      
3 Πu 32 30 137.38      

Unscaled Zero Point Vibrational Energy (zpe) 653.6 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 625.2 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 HSEh1PBE/6-31G
B
0.27242

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G

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 2.100
Li3 0.000 0.000 -2.100

Atom - Atom Distances (Å)
  S1 Li2 Li3
S12.10002.1000
Li22.10004.2000
Li32.10004.2000

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/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.815      
2 Li 0.408      
3 Li 0.408      


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 -23.851 0.000 0.000
y 0.000 -23.851 0.000
z 0.000 0.000 12.618
Traceless
 xyz
x -18.235 0.000 0.000
y 0.000 -18.235 0.000
z 0.000 0.000 36.469
Polar
3z2-r272.939
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 6.520 0.000 0.000
y 0.000 6.520 0.000
z 0.000 0.000 14.358


<r2> (average value of r2) Å2
<r2> 33.764
(<r2>)1/2 5.811

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at HSEh1PBE/6-31G
 hartrees
Energy at 0K-413.109282
Energy at 298.15K-413.109066
HF Energy-413.109282
Nuclear repulsion energy25.315035
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/6-31G
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 571 546 0.00      
2 Σu 671 642 309.74      
3 Πu 34 33 137.31      
3 Πu 34 33 137.31      

Unscaled Zero Point Vibrational Energy (zpe) 655.2 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 626.7 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/6-31G
B
0.27221

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G

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 2.101
Li3 0.000 0.000 -2.101

Atom - Atom Distances (Å)
  S1 Li2 Li3
S12.10082.1008
Li22.10084.2016
Li32.10084.2016

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 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.815      
2 Li 0.408      
3 Li 0.408      


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 -23.854 0.000 0.000
y 0.000 -23.854 0.000
z 0.000 0.000 12.641
Traceless
 xyz
x -18.247 0.000 0.000
y 0.000 -18.247 0.000
z 0.000 0.000 36.495
Polar
3z2-r272.990
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 6.525 0.000 0.000
y 0.000 6.525 0.000
z 0.000 0.000 14.372


<r2> (average value of r2) Å2
<r2> 33.781
(<r2>)1/2 5.812