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

using model chemistry: HF/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 HF/6-311G**
 hartrees
Energy at 0K-412.513574
Energy at 298.15K-412.513431
HF Energy-412.513574
Nuclear repulsion energy25.531969
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 HF/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 598 543 0.00      
2 Σu 688 625 349.20      
3 Πu 46 41 172.41      
3 Πu 46 41 172.41      

Unscaled Zero Point Vibrational Energy (zpe) 688.3 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 625.3 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 HF/6-311G**
B
0.27689

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/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 2.083
Li3 0.000 0.000 -2.083

Atom - Atom Distances (Å)
  S1 Li2 Li3
S12.08302.0830
Li22.08304.1659
Li32.08304.1659

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 HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -1.179      
2 Li 0.589      
3 Li 0.589      


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 -23.933 0.000 0.000
y 0.000 -23.933 0.000
z 0.000 0.000 14.987
Traceless
 xyz
x -19.460 0.000 0.000
y 0.000 -19.460 0.000
z 0.000 0.000 38.920
Polar
3z2-r277.840
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 6.255 0.000 0.000
y 0.000 6.255 0.000
z 0.000 0.000 9.216


<r2> (average value of r2) Å2
<r2> 32.878
(<r2>)1/2 5.734

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-412.513574
Energy at 298.15K-412.513810
HF Energy-412.513574
Nuclear repulsion energy25.537665
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 HF/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 598 544 0.00      
2 A1 44 40 172.41      
3 B2 688 625 349.14      

Unscaled Zero Point Vibrational Energy (zpe) 665.5 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 604.6 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 HF/6-311G**
B
0.27702

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/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 2.083 -0.001
Li3 0.000 -2.083 -0.001

Atom - Atom Distances (Å)
  S1 Li2 Li3
S12.08252.0825
Li22.08254.1650
Li32.08254.1650

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 179.941
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -1.179      
2 Li 0.589      
3 Li 0.589      


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 -0.007 0.007
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.931 0.000 0.000
y 0.000 14.972 0.000
z 0.000 0.000 -23.931
Traceless
 xyz
x -19.452 0.000 0.000
y 0.000 38.904 0.000
z 0.000 0.000 -19.452
Polar
3z2-r2-38.904
x2-y2-38.904
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.253 0.000 0.000
y 0.000 9.213 0.000
z 0.000 0.000 6.253


<r2> (average value of r2) Å2
<r2> 32.869
(<r2>)1/2 5.733