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

using model chemistry: QCISD(TQ)=FULL/6-31+G**

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 QCISD(TQ)=FULL/6-31+G**
 hartrees
Energy at 0K-100.099388
Energy at 298.15K-100.098631
HF Energy-99.777227
Nuclear repulsion energy27.328651
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/6-31+G**
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 2165 2165        
2 Σ 631 631        
3 Π 232 232        
3 Π 232 232        

Unscaled Zero Point Vibrational Energy (zpe) 1629.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1629.8 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(TQ)=FULL/6-31+G**
B
0.37398

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)=FULL/6-31+G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.075
C2 0.000 0.000 -0.159
N3 0.000 0.000 1.025

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.91603.0996
C21.91601.1836
N33.09961.1836

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(TQ)=FULL/6-31+G**
 hartrees
Energy at 0K-100.100772
Energy at 298.15K-100.099943
HF Energy-99.782991
Nuclear repulsion energy28.885997
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/6-31+G**
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' 2069 2069        
2 A' 647 647        
3 A' 132 132        

Unscaled Zero Point Vibrational Energy (zpe) 1423.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1423.6 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/6-31+G**
ABC
2.22285 0.74515 0.55807

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.496 -0.517 0.000
C2 -0.748 -0.382 0.000
N3 0.000 0.549 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.24871.8375
C22.24871.1949
N31.83751.1949

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 54.665 Li1 N3 C2 93.296
C2 Li1 N3 32.039
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at QCISD(TQ)=FULL/6-31+G**
 hartrees
Energy at 0K-100.104374
Energy at 298.15K-100.103501
HF Energy-99.788883
Nuclear repulsion energy28.147970
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/6-31+G**
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 2117 2117        
2 Σ 728 728        
3 Π 177 177        
3 Π 177 177        

Unscaled Zero Point Vibrational Energy (zpe) 1599.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1599.4 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/6-31+G**
B
0.43420

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)=FULL/6-31+G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.882
C2 0.000 0.000 -1.076
N3 0.000 0.000 0.116

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.95811.7657
C22.95811.1925
N31.76571.1925

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