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: LSDA/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 LSDA/3-21G
 hartrees
Energy at 0K-99.185111
Energy at 298.15K-99.184304
HF Energy-99.185111
Nuclear repulsion energy27.511600
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 LSDA/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 2177 2141 21.34      
2 Σ 668 657 93.38      
3 Π 208 204 50.52      
3 Π 208 204 50.52      

Unscaled Zero Point Vibrational Energy (zpe) 1629.9 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 1603.2 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 LSDA/3-21G
B
0.38070

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.054
C2 0.000 0.000 -0.160
N3 0.000 0.000 1.018

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.89353.0717
C21.89351.1782
N33.07171.1782

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 LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.472      
2 C -0.058      
3 N -0.414      


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 -8.237 8.237
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.466 0.000 0.000
y 0.000 -14.466 0.000
z 0.000 0.000 0.542
Traceless
 xyz
x -7.504 0.000 0.000
y 0.000 -7.504 0.000
z 0.000 0.000 15.008
Polar
3z2-r230.016
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 2.330 0.000 0.000
y 0.000 2.330 0.000
z 0.000 0.000 4.178


<r2> (average value of r2) Å2
<r2> 25.972
(<r2>)1/2 5.096

Conformer 2 (CS)

Jump to S1C1 S1C3
Energy calculated at LSDA/3-21G
 hartrees
Energy at 0K-99.162341
Energy at 298.15K 
HF Energy-99.162341
Nuclear repulsion energy25.738287
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 LSDA/3-21G
Rotational Constants (cm-1) from geometry optimized at LSDA/3-21G
B
0.38070

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.461 -0.536 0.000
C2 -0.730 -0.383 0.000
N3 0.000 0.559 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.19671.8257
C22.19671.1921
N31.82571.1921

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 56.203 Li1 N3 C2 90.936
C2 Li1 N3 32.861
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.449      
2 C 0.036      
3 N -0.484      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  8.169 -1.087 0.000 8.241
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -0.933 -0.503 0.000
y -0.503 -16.343 0.000
z 0.000 0.000 -14.983
Traceless
 xyz
x 14.730 -0.503 0.000
y -0.503 -8.385 0.000
z 0.000 0.000 -6.345
Polar
3z2-r2-12.690
x2-y215.410
xy-0.503
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.330 0.000 0.000
y 0.000 2.330 0.000
z 0.000 0.000 4.178


<r2> (average value of r2) Å2
<r2> 26.444
(<r2>)1/2 5.142

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at LSDA/3-21G
 hartrees
Energy at 0K-99.192523
Energy at 298.15K-99.191490
HF Energy-99.192523
Nuclear repulsion energy28.303899
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 LSDA/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 2088 2053 131.10      
2 Σ 782 769 121.12      
3 Π 121 119 33.43      
3 Π 121 119 33.43      

Unscaled Zero Point Vibrational Energy (zpe) 1555.5 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 1530.0 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 LSDA/3-21G
B
0.44189

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.861
C2 0.000 0.000 -1.070
N3 0.000 0.000 0.120

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.93171.7416
C22.93171.1902
N31.74161.1902

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 LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.472      
2 C 0.065      
3 N -0.537      


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 8.188 8.188
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.389 0.000 0.000
y 0.000 -14.389 0.000
z 0.000 0.000 -3.178
Traceless
 xyz
x -5.605 0.000 0.000
y 0.000 -5.605 0.000
z 0.000 0.000 11.211
Polar
3z2-r222.422
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 2.225 0.000 0.000
y 0.000 2.225 0.000
z 0.000 0.000 4.590


<r2> (average value of r2) Å2
<r2> 24.022
(<r2>)1/2 4.901