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

using model chemistry: QCISD(TQ)=FULL/cc-pVDZ

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'

Conformer 1 (C*V LiCN)

Jump to S1C2
Energy calculated at QCISD(TQ)=FULL/cc-pVDZ
 hartrees
Energy at 0K-100.089700
Energy at 298.15K-100.088652
HF Energy-99.778286
Nuclear repulsion energy27.162792
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(TQ)=FULL/cc-pVDZ
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 2149 2149        
2 Σ 603 603        
3 Π 140 140        
3 Π 140 140        

Unscaled Zero Point Vibrational Energy (zpe) 1516.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1516.2 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 QCISD(TQ)=FULL/cc-pVDZ
B
0.36556

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)=FULL/cc-pVDZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.103
C2 0.000 0.000 -0.154
N3 0.000 0.000 1.033

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.94903.1359
C21.94901.1869
N33.13591.1869

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
Energy calculated at QCISD(TQ)=FULL/cc-pVDZ
 hartrees
Energy at 0K-100.095588
Energy at 298.15K-100.094788
HF Energy-99.787843
Nuclear repulsion energy28.711191
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(TQ)=FULL/cc-pVDZ
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' 2044 2044        
2 A' 643 643        
3 A' 150 150        

Unscaled Zero Point Vibrational Energy (zpe) 1418.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1418.2 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 QCISD(TQ)=FULL/cc-pVDZ
ABC
2.05736 0.75647 0.55310

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.473 -0.601 0.000
C2 -0.736 -0.371 0.000
N3 0.000 0.576 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.22121.8851
C22.22121.1997
N31.88511.1997

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 58.063 Li1 N3 C2 89.248
C2 Li1 N3 32.689
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability