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

using model chemistry: MP2/6-31G

19 10 17 12 22

States and conformations

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

Conformer 1 (C*V LiCN)

Jump to S1C2 S1C3
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-99.942734
Energy at 298.15K-99.941842
HF Energy-99.722293
Nuclear repulsion energy26.754719
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 MP2/6-31G
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 1947 1863 29.08      
2 Σ 629 602 107.21      
3 Π 187 179 50.30      
3 Π 187 179 50.30      

Unscaled Zero Point Vibrational Energy (zpe) 1474.8 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 1411.1 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 MP2/6-31G
B
0.36093

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.108
C2 0.000 0.000 -0.167
N3 0.000 0.000 1.046

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.94173.1545
C21.94171.2128
N33.15451.2128

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 MP2/6-31G
 hartrees
Energy at 0K-99.938255
Energy at 298.15K 
HF Energy-99.732365
Nuclear repulsion energy27.292249
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 MP2/6-31G
Rotational Constants (cm-1) from geometry optimized at MP2/6-31G
B
0.36093

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.463 -0.586 0.000
C2 -0.732 -0.386 0.000
N3 0.000 0.582 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.20371.8724
C22.20371.2137
N31.87241.2137

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 58.140 Li1 N3 C2 88.455
C2 Li1 N3 33.405
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-99.939341
Energy at 298.15K-99.938327
HF Energy-99.737011
Nuclear repulsion energy27.576600
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 MP2/6-31G
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 1967 1882 73.79      
2 Σ 711 680 147.20      
3 Π 136 130 38.92      
3 Π 136 130 38.92      

Unscaled Zero Point Vibrational Energy (zpe) 1474.9 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 1411.2 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 MP2/6-31G
B
0.41533

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.926
C2 0.000 0.000 -1.099
N3 0.000 0.000 0.117

Atom - Atom Distances (Å)
  Li1 C2 N3
Li13.02481.8094
C23.02481.2155
N31.80941.2155

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