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All results from a given calculation for LiCN (lithium cyanide)

using model chemistry: PBE1PBE/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C*V LiCN 1Σ
1 2 no CS 1A'
1 3 yes C*V LiNC 1Σ

Conformer 1 (C*V LiCN)

Jump to S1C2 S1C3
Energy calculated at PBE1PBE/3-21G*
 hartrees
Energy at 0K-99.672741
Energy at 298.15K-99.671946
HF Energy-99.672741
Nuclear repulsion energy27.497985
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 PBE1PBE/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 2227 2137 16.52      
2 Σ 668 641 104.64      
3 Π 212 204 50.31      
3 Π 212 204 50.31      

Unscaled Zero Point Vibrational Energy (zpe) 1659.7 cm-1
Scaled (by 0.9598) Zero Point Vibrational Energy (zpe) 1593.0 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 PBE1PBE/3-21G*
B
0.37686

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.069
C2 0.000 0.000 -0.155
N3 0.000 0.000 1.019

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.91343.0881
C21.91341.1746
N33.08811.1746

picture of lithium cyanide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Li1 C2 N3 180.000 Li1 N3 C2 0.000
C2 Li1 N3 0.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.534      
2 C -0.071      
3 N -0.463      


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 -8.580 8.580
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.311 0.000 0.000
y 0.000 -14.311 0.000
z 0.000 0.000 0.992
Traceless
 xyz
x -7.652 0.000 0.000
y 0.000 -7.652 0.000
z 0.000 0.000 15.304
Polar
3z2-r230.607
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 2.088 0.000 0.000
y 0.000 2.088 0.000
z 0.000 0.000 4.010


<r2> (average value of r2) Å2
<r2> 26.010
(<r2>)1/2 5.100

Conformer 2 (CS)

Jump to S1C1 S1C3
Energy calculated at PBE1PBE/3-21G*
 hartrees
Energy at 0K-99.623787
Energy at 298.15K 
HF Energy-99.623787
Nuclear repulsion energy24.986877
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 PBE1PBE/3-21G*
Rotational Constants (cm-1) from geometry optimized at PBE1PBE/3-21G*
B
0.37686

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.473 -0.536 0.000
C2 -0.736 -0.380 0.000
N3 0.000 0.555 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.21491.8332
C22.21491.1901
N31.83321.1901

picture of lithium cyanide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Li1 C2 N3 55.822 Li1 N3 C2 91.692
C2 Li1 N3 32.486
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.500      
2 C 0.045      
3 N -0.545      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  7.867 0.617 0.000 7.891
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -1.173 0.119 0.000
y 0.119 -16.779 0.000
z 0.000 0.000 -15.044
Traceless
 xyz
x 14.739 0.119 0.000
y 0.119 -8.670 0.000
z 0.000 0.000 -6.069
Polar
3z2-r2-12.137
x2-y215.606
xy0.119
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.088 0.000 0.000
y 0.000 2.088 0.000
z 0.000 0.000 4.010


<r2> (average value of r2) Å2
<r2> 26.569
(<r2>)1/2 5.155

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at PBE1PBE/3-21G*
 hartrees
Energy at 0K-99.681943
Energy at 298.15K-99.680949
HF Energy-99.681943
Nuclear repulsion energy28.292465
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 PBE1PBE/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 2129 2043 150.42      
2 Σ 782 751 136.62      
3 Π 133 128 38.11      
3 Π 133 128 38.11      

Unscaled Zero Point Vibrational Energy (zpe) 1588.4 cm-1
Scaled (by 0.9598) Zero Point Vibrational Energy (zpe) 1524.5 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 PBE1PBE/3-21G*
B
0.43945

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.869
C2 0.000 0.000 -1.071
N3 0.000 0.000 0.117

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.94021.7524
C22.94021.1878
N31.75241.1878

picture of lithium cyanide state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Li1 C2 N3 0.000 Li1 N3 C2 180.000
C2 Li1 N3 0.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.535      
2 C 0.094      
3 N -0.629      


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 8.323 8.323
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.198 0.000 0.000
y 0.000 -14.198 0.000
z 0.000 0.000 -2.761
Traceless
 xyz
x -5.718 0.000 0.000
y 0.000 -5.718 0.000
z 0.000 0.000 11.437
Polar
3z2-r222.873
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 1.979 0.000 0.000
y 0.000 1.979 0.000
z 0.000 0.000 4.322


<r2> (average value of r2) Å2
<r2> 23.946
(<r2>)1/2 4.893