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

using model chemistry: B2PLYP=FULL/6-31+G**

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 B2PLYP=FULL/6-31+G**
 hartrees
Energy at 0K-100.283351
Energy at 298.15K-100.282496
HF Energy-100.179627
Nuclear repulsion energy27.388072
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 B2PLYP=FULL/6-31+G**
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 2160 2054 11.70      
2 Σ 630 599 128.48      
3 Π 198 189 42.70      
3 Π 198 189 42.70      

Unscaled Zero Point Vibrational Energy (zpe) 1593.1 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 1515.0 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 B2PLYP=FULL/6-31+G**
B
0.37369

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31+G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.078
C2 0.000 0.000 -0.155
N3 0.000 0.000 1.024

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.92203.1012
C21.92201.1791
N33.10121.1791

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 B2PLYP=FULL/6-31+G**
 hartrees
Energy at 0K-100.284546
Energy at 298.15K-100.283715
HF Energy-100.182964
Nuclear repulsion energy28.980022
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 B2PLYP=FULL/6-31+G**
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' 2059 1958 35.89      
2 A' 666 634 149.22      
3 A' 125 119 37.95      

Unscaled Zero Point Vibrational Energy (zpe) 1425.1 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 1355.3 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 B2PLYP=FULL/6-31+G**
ABC
2.20443 0.75507 0.56243

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.444 -0.578 0.000
C2 -0.722 -0.375 0.000
N3 0.000 0.569 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.17621.8442
C22.17621.1885
N31.84421.1885

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 57.921 Li1 N3 C2 88.983
C2 Li1 N3 33.095
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at B2PLYP=FULL/6-31+G**
 hartrees
Energy at 0K-100.287095
Energy at 298.15K-100.286113
HF Energy-100.186978
Nuclear repulsion energy28.154932
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 B2PLYP=FULL/6-31+G**
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 2102 1999 140.60      
2 Σ 715 680 160.52      
3 Π 145 138 36.36      
3 Π 145 138 36.36      

Unscaled Zero Point Vibrational Energy (zpe) 1553.2 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 1477.1 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 B2PLYP=FULL/6-31+G**
B
0.43185

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31+G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.890
C2 0.000 0.000 -1.076
N3 0.000 0.000 0.113

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.96661.7776
C22.96661.1890
N31.77761.1890

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