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

using model chemistry: MP2/6-31G**

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 MP2/6-31G**
 hartrees
Energy at 0K-100.059996
Energy at 298.15K-100.059001
HF Energy-99.767964
Nuclear repulsion energy27.121244
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 MP2/6-31G**
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 2073 1941 28.82      
2 Σ 624 585 114.10      
3 Π 155 145 45.55      
3 Π 155 145 45.55      

Unscaled Zero Point Vibrational Energy (zpe) 1502.9 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 1407.5 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 MP2/6-31G**
B
0.36642

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.098
C2 0.000 0.000 -0.157
N3 0.000 0.000 1.034

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.94113.1318
C21.94111.1907
N33.13181.1907

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 MP2/6-31G**
 hartrees
Energy at 0K-100.064759
Energy at 298.15K-100.064058
HF Energy-99.775852
Nuclear repulsion energy28.809813
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 MP2/6-31G**
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' 1991 1864 9.44      
2 A' 637 596 137.59      
3 A' 220 206 20.40      

Unscaled Zero Point Vibrational Energy (zpe) 1423.6 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 1333.2 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 MP2/6-31G**
ABC
1.89038 0.81242 0.56822

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.433 -0.609 0.000
C2 -0.717 -0.376 0.000
N3 0.000 0.584 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.16231.8646
C22.16231.1978
N31.86461.1978

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 59.442 Li1 N3 C2 86.973
C2 Li1 N3 33.585
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at MP2/6-31G**
 hartrees
Energy at 0K-100.058168
Energy at 298.15K 
HF Energy-99.777692
Nuclear repulsion energy27.882470
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 MP2/6-31G**
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 1936 90.21      
2 Σ 704 660 149.55      
3 Π 27i 25i 31.63      
3 Π 27i 25i 31.63      

Unscaled Zero Point Vibrational Energy (zpe) 1359.0 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 1272.7 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 MP2/6-31G**
B
0.42093

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.918
C2 0.000 0.000 -1.087
N3 0.000 0.000 0.110

Atom - Atom Distances (Å)
  Li1 C2 N3
Li13.00521.8082
C23.00521.1970
N31.80821.1970

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