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

using model chemistry: MP2=FULL/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V LiCN 1Σ
1 2 no CS 1A'
1 3 no C*V LiNC 1Σ

Conformer 1 (C*V LiCN)

Jump to S1C2 S1C3
Energy calculated at MP2=FULL/6-31G
 hartrees
Energy at 0K-99.945724
Energy at 298.15K-99.944850
HF Energy-99.722358
Nuclear repulsion energy26.781685
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=FULL/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σ 1949 1851 29.15      
2 Σ 627 596 106.97      
3 Π 193 184 50.52      
3 Π 193 184 50.52      

Unscaled Zero Point Vibrational Energy (zpe) 1481.1 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 1407.2 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=FULL/6-31G
B
0.36239

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

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 -0.168
N3 0.000 0.000 1.045

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.93543.1479
C21.93541.2125
N33.14791.2125

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=FULL/6-31G
 hartrees
Energy at 0K-99.940887
Energy at 298.15K 
HF Energy-99.731659
Nuclear repulsion energy27.241023
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=FULL/6-31G
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/6-31G
B
0.36239

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.463 -0.585 0.000
C2 -0.731 -0.386 0.000
N3 0.000 0.582 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.20311.8713
C22.20311.2136
N31.87131.2136

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 58.111 Li1 N3 C2 88.476
C2 Li1 N3 33.412
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at MP2=FULL/6-31G
 hartrees
Energy at 0K-99.942206
Energy at 298.15K-99.941203
HF Energy-99.737086
Nuclear repulsion energy27.593222
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=FULL/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σ 1968 1870 74.05      
2 Σ 710 675 147.10      
3 Π 139 132 39.01      
3 Π 139 132 39.01      

Unscaled Zero Point Vibrational Energy (zpe) 1478.5 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 1404.8 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 MP2=FULL/6-31G
B
0.41623

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.923
C2 0.000 0.000 -1.098
N3 0.000 0.000 0.117

Atom - Atom Distances (Å)
  Li1 C2 N3
Li13.02151.8062
C23.02151.2153
N31.80621.2153

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