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

using model chemistry: MP4/3-21G

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 MP4/3-21G
 hartrees
Energy at 0K-99.426694
Energy at 298.15K-99.425833
HF Energy-99.203243
Nuclear repulsion energy26.988057
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 MP4/3-21G
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 2000 1940        
2 Σ 646 626        
3 Π 193 187        
3 Π 193 187        

Unscaled Zero Point Vibrational Energy (zpe) 1516.1 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 1470.3 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 MP4/3-21G
B
0.36371

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.105
C2 0.000 0.000 -0.159
N3 0.000 0.000 1.038

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.94613.1433
C21.94611.1972
N33.14331.1972

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 MP4/3-21G
 hartrees
Energy at 0K-99.435085
Energy at 298.15K-99.434283
HF Energy-99.220430
Nuclear repulsion energy27.781462
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 MP4/3-21G
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' 1899 1842        
2 A' 760 737        
3 A' 118 115        

Unscaled Zero Point Vibrational Energy (zpe) 1388.9 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 1346.9 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 MP4/3-21G
B
0.42485

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.002 1.900 0.000
C2 -0.001 -1.091 0.000
N3 0.000 0.121 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.99011.7788
C22.99011.2113
N31.77881.2113

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 0.008 Li1 N3 C2 179.986
C2 Li1 N3 0.006
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-99.435085
Energy at 298.15K-99.434036
HF Energy-99.220362
Nuclear repulsion energy27.775068
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 MP4/3-21G
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 1899 1841        
2 Σ 760 737        
3 Π 119 116        
3 Π 119 116        

Unscaled Zero Point Vibrational Energy (zpe) 1448.3 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 1404.6 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 MP4/3-21G
B
0.42475

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.900
C2 0.000 0.000 -1.091
N3 0.000 0.000 0.121

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.99051.7791
C22.99051.2113
N31.77911.2113

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