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

using model chemistry: MP2/SDD

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/SDD
 hartrees
Energy at 0K-99.954703
Energy at 298.15K-99.953806
HF Energy-99.733454
Nuclear repulsion energy26.480247
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/SDD
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 1877 1811 24.36      
2 Σ 603 582 103.99      
3 Π 191 185 51.86      
3 Π 191 185 51.86      

Unscaled Zero Point Vibrational Energy (zpe) 1430.9 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 1381.3 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/SDD
B
0.35447

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.126
C2 0.000 0.000 -0.170
N3 0.000 0.000 1.057

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.95633.1829
C21.95631.2266
N33.18291.2266

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/SDD
 hartrees
Energy at 0K-99.953019
Energy at 298.15K 
HF Energy-99.746225
Nuclear repulsion energy27.155268
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/SDD
Rotational Constants (cm-1) from geometry optimized at MP2/SDD
B
0.35447

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.471 -0.566 0.000
C2 -0.736 -0.395 0.000
N3 0.000 0.581 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.21351.8657
C22.21351.2225
N31.86571.2225

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 57.433 Li1 N3 C2 89.047
C2 Li1 N3 33.519
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-99.954440
Energy at 298.15K-99.953515
HF Energy-99.751526
Nuclear repulsion energy27.417200
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/SDD
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 1911 1845 65.51      
2 Σ 687 663 139.40      
3 Π 168 162 35.72      
3 Π 168 162 35.72      

Unscaled Zero Point Vibrational Energy (zpe) 1466.5 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 1415.6 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 MP2/SDD
B
0.41232

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.930
C2 0.000 0.000 -1.105
N3 0.000 0.000 0.120

Atom - Atom Distances (Å)
  Li1 C2 N3
Li13.03551.8103
C23.03551.2252
N31.81031.2252

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