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

using model chemistry: MP4/6-31G*

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 MP4/6-31G*
 hartrees
Energy at 0K-100.080459
Energy at 298.15K-100.079471
HF Energy-99.767812
Nuclear repulsion energy27.106546
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 MP4/6-31G*
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 2067 1973        
2 Σ 622 594        
3 Π 158 151        
3 Π 158 151        

Unscaled Zero Point Vibrational Energy (zpe) 1502.5 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 1434.6 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 MP4/6-31G*
B
0.36620

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.099
C2 0.000 0.000 -0.157
N3 0.000 0.000 1.034

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.94163.1328
C21.94161.1911
N33.13281.1911

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 MP4/6-31G*
 hartrees
Energy at 0K-100.086745
Energy at 298.15K-100.086034
HF Energy-99.775699
Nuclear repulsion energy28.748430
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 MP4/6-31G*
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' 1949 1861        
2 A' 648 618        
3 A' 211 201        

Unscaled Zero Point Vibrational Energy (zpe) 1403.5 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 1340.0 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 MP4/6-31G*
ABC
1.92971 0.79831 0.56470

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.421 -0.654 0.000
C2 -0.710 -0.373 0.000
N3 0.000 0.600 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.14961.8951
C22.14961.2046
N31.89511.2046

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 61.381 Li1 N3 C2 84.705
C2 Li1 N3 33.915
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-100.081345
Energy at 298.15K 
HF Energy-99.776995
Nuclear repulsion energy27.820294
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 MP4/6-31G*
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 2002 1911        
2 Σ 708 676        
3 Π 16i 15i        
3 Π 16i 15i        

Unscaled Zero Point Vibrational Energy (zpe) 1338.9 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 1278.4 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 MP4/6-31G*
B
0.42054

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.917
C2 0.000 0.000 -1.090
N3 0.000 0.000 0.112

Atom - Atom Distances (Å)
  Li1 C2 N3
Li13.00641.8043
C23.00641.2021
N31.80431.2021

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