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

using model chemistry: CCSD=FULL/TZVP

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 no CS 1A'
1 3 yes C*V LiNC 1Σ

Conformer 1 (C*V LiCN)

Jump to S1C2 S1C3
Energy calculated at CCSD=FULL/TZVP
 hartrees
Energy at 0K-100.156772
Energy at 298.15K-100.155850
HF Energy-99.805792
Nuclear repulsion energy27.579197
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/TZVP
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 2222 2105 9.56      
2 Σ 622 590 125.19      
3 Π 176 167 44.65      
3 Π 176 167 44.65      

Unscaled Zero Point Vibrational Energy (zpe) 1598.4 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 1514.5 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/TZVP
B
0.37481

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/TZVP

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 -0.148
N3 0.000 0.000 1.018

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.93133.0974
C21.93131.1661
N33.09741.1661

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/TZVP
 hartrees
Energy at 0K-100.157428
Energy at 298.15K-100.156709
HF Energy-99.807359
Nuclear repulsion energy29.292710
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/TZVP
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' 2128 2016 24.68      
2 A' 637 604 167.20      
3 A' 203 193 28.04      

Unscaled Zero Point Vibrational Energy (zpe) 1484.1 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 1406.2 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 CCSD=FULL/TZVP
ABC
2.00189 0.81886 0.58115

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.434 -0.604 0.000
C2 -0.717 -0.363 0.000
N3 0.000 0.570 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.16401.8533
C22.16401.1766
N31.85331.1766

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 58.871 Li1 N3 C2 88.211
C2 Li1 N3 32.919
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at CCSD=FULL/TZVP
 hartrees
Energy at 0K-100.158780
Energy at 298.15K-100.157648
HF Energy-99.814996
Nuclear repulsion energy28.288219
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/TZVP
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 2162 2049 128.25      
2 Σ 687 651 169.35      
3 Π 103 97 37.51      
3 Π 103 97 37.51      

Unscaled Zero Point Vibrational Energy (zpe) 1527.3 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 1447.2 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 CCSD=FULL/TZVP
B
0.43019

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/TZVP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.901
C2 0.000 0.000 -1.072
N3 0.000 0.000 0.104

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.97311.7973
C22.97311.1759
N31.79731.1759

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