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

using model chemistry: MP4=FULL/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=FULL/6-31G*
 hartrees
Energy at 0K-100.089799
Energy at 298.15K-100.088860
HF Energy-99.768013
Nuclear repulsion energy27.175467
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=FULL/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 2075 1995        
2 Σ 629 605        
3 Π 173 166        
3 Π 173 166        

Unscaled Zero Point Vibrational Energy (zpe) 1524.5 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 1466.0 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=FULL/6-31G*
B
0.36945

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.088
C2 0.000 0.000 -0.159
N3 0.000 0.000 1.031

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.92883.1186
C21.92881.1898
N33.11861.1898

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=FULL/6-31G*
 hartrees
Energy at 0K-100.095419
Energy at 298.15K-100.094704
HF Energy-99.775908
Nuclear repulsion energy28.799793
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=FULL/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' 647 622        
2 A' 208 200        
3 A' 1955 1879        

Unscaled Zero Point Vibrational Energy (zpe) 1404.6 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 1350.7 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 MP4=FULL/6-31G*
ABC
1.93772 0.80264 0.56755

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.418 -0.647 0.000
C2 -0.709 -0.374 0.000
N3 0.000 0.598 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.14501.8876
C22.14501.2033
N31.88761.2033

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 61.213 Li1 N3 C2 84.820
C2 Li1 N3 33.967
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at MP4=FULL/6-31G*
 hartrees
Energy at 0K-100.090255
Energy at 298.15K-100.088870
HF Energy-99.777241
Nuclear repulsion energy27.876145
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=FULL/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 2008 1931        
2 Σ 712 684        
3 Π 33 32        
3 Π 33 32        

Unscaled Zero Point Vibrational Energy (zpe) 1393.3 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 1339.8 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 MP4=FULL/6-31G*
B
0.42309

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.910
C2 0.000 0.000 -1.087
N3 0.000 0.000 0.114

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.99711.7963
C22.99711.2009
N31.79631.2009

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