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

using model chemistry: CISD/6-311G*

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 CISD/6-311G*
 hartrees
Energy at 0K-100.079594
Energy at 298.15K-100.078651
HF Energy-99.798365
Nuclear repulsion energy27.655087
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 CISD/6-311G*
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 2271 2101 9.55      
2 Σ 635 588 124.14      
3 Π 169 156 44.62      
3 Π 169 156 44.62      

Unscaled Zero Point Vibrational Energy (zpe) 1621.4 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 1500.3 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 CISD/6-311G*
B
0.37740

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.072
C2 0.000 0.000 -0.148
N3 0.000 0.000 1.015

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.92313.0866
C21.92311.1635
N33.08661.1635

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 CISD/6-311G*
 hartrees
Energy at 0K-100.085208
Energy at 298.15K-100.084452
HF Energy-99.805139
Nuclear repulsion energy29.288460
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 CISD/6-311G*
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' 678 627 150.14      
2 A' 168 155 32.39      
3 A' 2153 1992 40.46      

Unscaled Zero Point Vibrational Energy (zpe) 1499.1 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 1387.1 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 CISD/6-311G*
ABC
2.16732 0.78423 0.57586

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.440 -0.582 0.000
C2 -0.720 -0.367 0.000
N3 0.000 0.564 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.17141.8406
C22.17141.1766
N31.84061.1766

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 57.953 Li1 N3 C2 89.240
C2 Li1 N3 32.807
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at CISD/6-311G*
 hartrees
Energy at 0K-100.084688
Energy at 298.15K-100.083525
HF Energy-99.808864
Nuclear repulsion energy28.393636
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 CISD/6-311G*
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 2189 2025 162.50      
2 Σ 721 667 164.89      
3 Π 91 84 31.61      
3 Π 91 84 31.61      

Unscaled Zero Point Vibrational Energy (zpe) 1545.3 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 1429.9 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 CISD/6-311G*
B
0.43642

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.884
C2 0.000 0.000 -1.068
N3 0.000 0.000 0.108

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.95141.7760
C22.95141.1754
N31.77601.1754

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