return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3PW91/6-31G(2df,p)

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 B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-100.328116
Energy at 298.15K-100.327122
HF Energy-100.328116
Nuclear repulsion energy27.668579
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 B3PW91/6-31G(2df,p)
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 2248 2161 12.24      
2 Σ 630 606 109.98      
3 Π 153 147 37.04      
3 Π 153 147 37.04      

Unscaled Zero Point Vibrational Energy (zpe) 1592.0 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 1530.5 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 B3PW91/6-31G(2df,p)
B
0.38057

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.060
C2 0.000 0.000 -0.153
N3 0.000 0.000 1.014

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.90703.0732
C21.90701.1662
N33.07321.1662

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 B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.207      
2 C 0.136      
3 N -0.343      


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 -8.801 8.801
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.078 0.000 0.000
y 0.000 -14.078 0.000
z 0.000 0.000 1.651
Traceless
 xyz
x -7.865 0.000 0.000
y 0.000 -7.865 0.000
z 0.000 0.000 15.729
Polar
3z2-r231.459
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 2.719 0.000 0.000
y 0.000 2.719 0.000
z 0.000 0.000 4.207


<r2> (average value of r2) Å2
<r2> 25.576
(<r2>)1/2 5.057

Conformer 2 (CS)

Jump to S1C1 S1C3
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-100.334800
Energy at 298.15K-100.334056
HF Energy-100.334800
Nuclear repulsion energy29.266197
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 B3PW91/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 672 646 129.70      
2 A' 177 170 29.14      
3 A' 2113 2031 39.38      

Unscaled Zero Point Vibrational Energy (zpe) 1480.4 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 1423.2 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 B3PW91/6-31G(2df,p)
ABC
2.10032 0.79998 0.57933

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.437 -0.583 0.000
C2 -0.719 -0.369 0.000
N3 0.000 0.566 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.16651.8406
C22.16651.1796
N31.84061.1796

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 58.147 Li1 N3 C2 88.871
C2 Li1 N3 32.982
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.228      
2 C -0.021      
3 N -0.207      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  6.368 -2.402 0.000 6.806
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -5.686 -5.932 0.000
y -5.932 -15.017 0.000
z 0.000 0.000 -14.414
Traceless
 xyz
x 9.029 -5.932 0.000
y -5.932 -4.967 0.000
z 0.000 0.000 -4.062
Polar
3z2-r2-8.124
x2-y29.331
xy-5.932
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.355 0.384 0.000
y 0.384 3.407 0.000
z 0.000 0.000 2.820


<r2> (average value of r2) Å2
<r2> 20.678
(<r2>)1/2 4.547

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-100.333864
Energy at 298.15K-100.332756
HF Energy-100.333864
Nuclear repulsion energy28.397418
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 B3PW91/6-31G(2df,p)
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 2155 2071 161.14      
2 Σ 733 704 139.73      
3 Π 105 101 25.48      
3 Π 105 101 25.48      

Unscaled Zero Point Vibrational Energy (zpe) 1548.4 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 1488.6 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 B3PW91/6-31G(2df,p)
B
0.43914

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.875
C2 0.000 0.000 -1.067
N3 0.000 0.000 0.111

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.94191.7633
C22.94191.1786
N31.76331.1786

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 B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.369      
2 C -0.288      
3 N -0.082      


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 8.626 8.626
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.117 0.000 0.000
y 0.000 -14.117 0.000
z 0.000 0.000 -1.769
Traceless
 xyz
x -6.174 0.000 0.000
y 0.000 -6.174 0.000
z 0.000 0.000 12.348
Polar
3z2-r224.695
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 2.672 0.000 0.000
y 0.000 2.672 0.000
z 0.000 0.000 4.234


<r2> (average value of r2) Å2
<r2> 23.710
(<r2>)1/2 4.869