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

using model chemistry: mPW1PW91/3-21G*

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 yes CS 1A'
1 3 no C*V LiNC 1Σ

Conformer 1 (C*V LiCN)

Jump to S1C2 S1C3
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-99.771426
Energy at 298.15K-99.770629
HF Energy-99.771426
Nuclear repulsion energy27.510040
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 mPW1PW91/3-21G*
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 2229 2117 16.05      
2 Σ 667 633 105.85      
3 Π 212 201 50.25      
3 Π 212 201 50.25      

Unscaled Zero Point Vibrational Energy (zpe) 1659.9 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 1576.2 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 mPW1PW91/3-21G*
B
0.37686

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

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
Li11.91453.0882
C21.91451.1737
N33.08821.1737

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 mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.540      
2 C -0.076      
3 N -0.464      


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 -8.608 8.608
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.286 0.000 0.000
y 0.000 -14.286 0.000
z 0.000 0.000 1.037
Traceless
 xyz
x -7.661 0.000 0.000
y 0.000 -7.661 0.000
z 0.000 0.000 15.323
Polar
3z2-r230.645
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 2.061 0.000 0.000
y 0.000 2.061 0.000
z 0.000 0.000 3.975


<r2> (average value of r2) Å2
<r2> 25.989
(<r2>)1/2 5.098

Conformer 2 (CS)

Jump to S1C1 S1C3
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-99.780802
Energy at 298.15K 
HF Energy-99.780802
Nuclear repulsion energy28.317299
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 mPW1PW91/3-21G*
Rotational Constants (cm-1) from geometry optimized at mPW1PW91/3-21G*
B
0.37686

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.236 1.854 0.000
C2 -0.118 -1.063 0.000
N3 0.000 0.117 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.93891.7532
C22.93891.1861
N31.75321.1861

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 1.210 Li1 N3 C2 177.971
C2 Li1 N3 0.819
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.541      
2 C 0.092      
3 N -0.633      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.070 8.281 0.000 8.350
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.950 1.554 0.000
y 1.554 -2.928 0.000
z 0.000 0.000 -14.160
Traceless
 xyz
x -5.406 1.554 0.000
y 1.554 11.127 0.000
z 0.000 0.000 -5.722
Polar
3z2-r2-11.443
x2-y2-11.022
xy1.554
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.061 0.000 0.000
y 0.000 2.061 0.000
z 0.000 0.000 3.975


<r2> (average value of r2) Å2
<r2> 23.906
(<r2>)1/2 4.889

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-99.780791
Energy at 298.15K-99.779802
HF Energy-99.780791
Nuclear repulsion energy28.304834
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 mPW1PW91/3-21G*
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 2132 2024 148.55      
2 Σ 780 741 137.77      
3 Π 135 128 38.50      
3 Π 135 128 38.50      

Unscaled Zero Point Vibrational Energy (zpe) 1590.5 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 1510.4 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 mPW1PW91/3-21G*
B
0.43950

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.870
C2 0.000 0.000 -1.071
N3 0.000 0.000 0.116

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.94011.7533
C22.94011.1868
N31.75331.1868

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 mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.541      
2 C 0.092      
3 N -0.633      


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 8.350 8.350
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.162 0.000 0.000
y 0.000 -14.162 0.000
z 0.000 0.000 -2.711
Traceless
 xyz
x -5.725 0.000 0.000
y 0.000 -5.725 0.000
z 0.000 0.000 11.451
Polar
3z2-r222.902
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 1.948 0.000 0.000
y 0.000 1.948 0.000
z 0.000 0.000 4.266


<r2> (average value of r2) Å2
<r2> 23.918
(<r2>)1/2 4.891