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

using model chemistry: CCSD=FULL/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 CCSD=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-100.134590
Energy at 298.15K-100.133602
HF Energy-99.780204
Nuclear repulsion energy27.657499
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 CCSD=FULL/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 2233 2103 12.88      
2 Σ 636 599 113.21      
3 Π 154 145 38.39      
3 Π 154 145 38.39      

Unscaled Zero Point Vibrational Energy (zpe) 1588.4 cm-1
Scaled (by 0.9416) Zero Point Vibrational Energy (zpe) 1495.6 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 CCSD=FULL/6-31G(2df,p)
B
0.38067

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.059
C2 0.000 0.000 -0.153
N3 0.000 0.000 1.014

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.90563.0727
C21.90561.1672
N33.07271.1672

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 CCSD=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-100.142081
Energy at 298.15K-100.141361
HF Energy-99.789729
Nuclear repulsion energy29.300036
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 CCSD=FULL/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' 2111 1987 32.05      
2 A' 677 637 134.06      
3 A' 191 180 27.81      

Unscaled Zero Point Vibrational Energy (zpe) 1489.3 cm-1
Scaled (by 0.9416) Zero Point Vibrational Energy (zpe) 1402.4 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 CCSD=FULL/6-31G(2df,p)
ABC
2.07802 0.80976 0.58270

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.435 -0.584 0.000
C2 -0.717 -0.369 0.000
N3 0.000 0.567 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.16311.8393
C22.16311.1796
N31.83931.1796

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 58.220 Li1 N3 C2 88.741
C2 Li1 N3 33.038
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at CCSD=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-100.139830
Energy at 298.15K-100.138700
HF Energy-99.792199
Nuclear repulsion energy28.423623
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 CCSD=FULL/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 2163 2037 143.58      
2 Σ 735 692 145.10      
3 Π 98 92 27.08      
3 Π 98 92 27.08      

Unscaled Zero Point Vibrational Energy (zpe) 1547.1 cm-1
Scaled (by 0.9416) Zero Point Vibrational Energy (zpe) 1456.8 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 CCSD=FULL/6-31G(2df,p)
B
0.43971

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.874
C2 0.000 0.000 -1.066
N3 0.000 0.000 0.111

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.94001.7628
C22.94001.1772
N31.76281.1772

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