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

using model chemistry: CCSD/6-31G*

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/6-31G*
 hartrees
Energy at 0K-100.063973
Energy at 298.15K-100.063009
HF Energy-99.770267
Nuclear repulsion energy27.342303
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/6-31G*
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 2224 2100 11.53      
2 Σ 625 590 115.30      
3 Π 165 156 44.91      
3 Π 165 156 44.91      

Unscaled Zero Point Vibrational Energy (zpe) 1589.5 cm-1
Scaled (by 0.9443) Zero Point Vibrational Energy (zpe) 1501.0 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/6-31G*
B
0.36932

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.094
C2 0.000 0.000 -0.151
N3 0.000 0.000 1.027

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.94283.1202
C21.94281.1773
N33.12021.1773

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/6-31G*
 hartrees
Energy at 0K-100.070142
Energy at 298.15K-100.069426
HF Energy-99.778099
Nuclear repulsion energy28.965165
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/6-31G*
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' 2110 1993 29.15      
2 A' 660 623 133.61      
3 A' 203 191 23.35      

Unscaled Zero Point Vibrational Energy (zpe) 1486.0 cm-1
Scaled (by 0.9443) Zero Point Vibrational Energy (zpe) 1403.2 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/6-31G*
ABC
2.02415 0.78634 0.56633

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.437 -0.631 0.000
C2 -0.718 -0.365 0.000
N3 0.000 0.584 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.17161.8814
C22.17161.1903
N31.88141.1903

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 59.896 Li1 N3 C2 86.920
C2 Li1 N3 33.184
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at CCSD/6-31G*
 hartrees
Energy at 0K-100.065529
Energy at 298.15K-100.064087
HF Energy-99.778872
Nuclear repulsion energy28.054808
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/6-31G*
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 2159 2038 135.37      
2 Σ 713 674 151.38      
3 Π 19 18 35.82      
3 Π 19 18 35.82      

Unscaled Zero Point Vibrational Energy (zpe) 1454.6 cm-1
Scaled (by 0.9443) Zero Point Vibrational Energy (zpe) 1373.5 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/6-31G*
B
0.42501

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.910
C2 0.000 0.000 -1.081
N3 0.000 0.000 0.108

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.99091.8028
C22.99091.1881
N31.80281.1881

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