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

using model chemistry: M06-2X/cc-pCVTZ

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 M06-2X/cc-pCVTZ
 hartrees
Energy at 0K-413.309164
Energy at 298.15K-413.308986
HF Energy-413.309164
Nuclear repulsion energy25.768784
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 M06-2X/cc-pCVTZ
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 611 611 0.00      
2 Σu 709 709 318.71      
3 Πu 31 31 125.64      
3 Πu 31 31 125.64      

Unscaled Zero Point Vibrational Energy (zpe) 691.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 691.0 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 M06-2X/cc-pCVTZ
B
0.28205

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/cc-pCVTZ

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 2.073
Li3 0.000 0.000 -2.073

Atom - Atom Distances (Å)
  S1 Li2 Li3
S12.07262.0726
Li22.07264.1452
Li32.07264.1452

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 M06-2X/cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.286      
2 Li 0.143      
3 Li 0.143      


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 -23.528 0.000 0.000
y 0.000 -23.528 0.000
z 0.000 0.000 12.975
Traceless
 xyz
x -18.251 0.000 0.000
y 0.000 -18.251 0.000
z 0.000 0.000 36.503
Polar
3z2-r273.006
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 8.464 0.000 0.000
y 0.000 8.464 0.000
z 0.000 0.000 11.004


<r2> (average value of r2) Å2
<r2> 32.652
(<r2>)1/2 5.714

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at M06-2X/cc-pCVTZ
 hartrees
Energy at 0K-413.309174
Energy at 298.15K-413.309410
HF Energy-413.309174
Nuclear repulsion energy25.747942
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 M06-2X/cc-pCVTZ
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 610 610 16.56      
2 A1 38 38 108.41      
3 B2 691 691 250.63      

Unscaled Zero Point Vibrational Energy (zpe) 669.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 669.6 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 M06-2X/cc-pCVTZ
ABC
3.35965 0.31808 0.29057

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/cc-pCVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.440
Li2 0.000 1.312 -1.172
Li3 0.000 -1.312 -1.172

Atom - Atom Distances (Å)
  S1 Li2 Li3
S12.07872.0787
Li22.07872.6246
Li32.07872.6246

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 78.292
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.312      
2 Li 0.156      
3 Li 0.156      


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 -3.882 3.882
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.589 0.000 0.000
y 0.000 9.052 0.000
z 0.000 0.000 -21.054
Traceless
 xyz
x -17.588 0.000 0.000
y 0.000 31.373 0.000
z 0.000 0.000 -13.786
Polar
3z2-r2-27.571
x2-y2-32.641
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.640 0.000 0.000
y 0.000 10.499 0.000
z 0.000 0.000 8.905


<r2> (average value of r2) Å2
<r2> 32.317
(<r2>)1/2 5.685