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

using model chemistry: QCISD(T)/cc-pCVTZ

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 QCISD(T)/cc-pCVTZ
 hartrees
Energy at 0K-100.179730
Energy at 298.15K-100.178778
HF Energy-99.809024
Nuclear repulsion energy27.475678
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 QCISD(T)/cc-pCVTZ
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 2148 2148        
2 Σ 623 623        
3 Π 165 165        
3 Π 165 165        

Unscaled Zero Point Vibrational Energy (zpe) 1550.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1550.7 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 QCISD(T)/cc-pCVTZ
B
0.37403

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pCVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.079
C2 0.000 0.000 -0.152
N3 0.000 0.000 1.021

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.92783.1002
C21.92781.1725
N33.10021.1725

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 QCISD(T)/cc-pCVTZ
 hartrees
Energy at 0K-100.183862
Energy at 298.15K-100.183114
HF Energy-99.815627
Nuclear repulsion energy29.162095
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 QCISD(T)/cc-pCVTZ
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' 2038 2038        
2 A' 649 649        
3 A' 178 178        

Unscaled Zero Point Vibrational Energy (zpe) 1432.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1432.8 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 QCISD(T)/cc-pCVTZ
ABC
2.03418 0.80563 0.57708

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pCVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.420 -0.625 0.000
C2 -0.710 -0.367 0.000
N3 0.000 0.582 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.14531.8634
C22.14531.1850
N31.86341.1850

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 60.100 Li1 N3 C2 86.444
C2 Li1 N3 33.456
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at QCISD(T)/cc-pCVTZ
 hartrees
Energy at 0K-100.183685
Energy at 298.15K-100.182530
HF Energy-99.820000
Nuclear repulsion energy28.254232
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 QCISD(T)/cc-pCVTZ
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 2082 2082        
2 Σ 706 706        
3 Π 93 93        
3 Π 93 93        

Unscaled Zero Point Vibrational Energy (zpe) 1487.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1487.1 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 QCISD(T)/cc-pCVTZ
B
0.43310

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pCVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.890
C2 0.000 0.000 -1.073
N3 0.000 0.000 0.110

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.96251.7798
C22.96251.1828
N31.77981.1828

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