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

using model chemistry: CID/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 CID/3-21G*
 hartrees
Energy at 0K-99.396890
Energy at 298.15K-99.396082
HF Energy-99.206683
Nuclear repulsion energy27.379489
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 CID/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 2235 2079 14.33      
2 Σ 657 612 105.36      
3 Π 210 196 51.03      
3 Π 210 196 51.03      

Unscaled Zero Point Vibrational Energy (zpe) 1656.3 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 1541.2 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 CID/3-21G*
B
0.37000

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.092
C2 0.000 0.000 -0.150
N3 0.000 0.000 1.025

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.94203.1173
C21.94201.1753
N33.11731.1753

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

Conformer 2 (CS)

Jump to S1C1 S1C3
Energy calculated at CID/3-21G*
 hartrees
Energy at 0K-99.344972
Energy at 298.15K 
HF Energy-99.144805
Nuclear repulsion energy24.522189
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 CID/3-21G*
Rotational Constants (cm-1) from geometry optimized at CID/3-21G*
B
0.37000

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.480 -0.545 0.000
C2 -0.740 -0.376 0.000
N3 0.000 0.556 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.22641.8448
C22.22641.1899
N31.84481.1899

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 55.913 Li1 N3 C2 91.799
C2 Li1 N3 32.288
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at CID/3-21G*
 hartrees
Energy at 0K-99.404631
Energy at 298.15K-99.403647
HF Energy-99.223604
Nuclear repulsion energy28.215396
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 CID/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 2156 2006 130.97      
2 Σ 777 723 146.83      
3 Π 137 127 37.12      
3 Π 137 127 37.12      

Unscaled Zero Point Vibrational Energy (zpe) 1603.1 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 1491.7 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 CID/3-21G*
B
0.43391

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.885
C2 0.000 0.000 -1.074
N3 0.000 0.000 0.113

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.95951.7728
C22.95951.1867
N31.77281.1867

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