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

using model chemistry: MP2=FULL/STO-3G

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=FULL/STO-3G
 hartrees
Energy at 0K-98.627757
Energy at 298.15K-98.626813
HF Energy-98.439856
Nuclear repulsion energy26.642251
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/STO-3G
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 1848 1643 229.04      
2 Σ 739 657 68.29      
3 Π 182 162 44.80      
3 Π 182 162 44.80      

Unscaled Zero Point Vibrational Energy (zpe) 1475.4 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 1311.5 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=FULL/STO-3G
B
0.37525

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.043
C2 0.000 0.000 -0.198
N3 0.000 0.000 1.045

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.84543.0883
C21.84541.2429
N33.08831.2429

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/STO-3G
 hartrees
Energy at 0K-98.630280
Energy at 298.15K-98.629793
HF Energy-98.455165
Nuclear repulsion energy29.175721
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/STO-3G
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' 1911 1699 30.76      
2 A' 859 764 100.71      
3 A' 379 337 1.88      

Unscaled Zero Point Vibrational Energy (zpe) 1574.4 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 1399.5 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=FULL/STO-3G
ABC
1.69760 1.02217 0.63801

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.360 -0.557 0.000
C2 -0.680 -0.428 0.000
N3 0.000 0.606 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.04391.7893
C22.04391.2378
N31.78931.2378

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 60.285 Li1 N3 C2 82.789
C2 Li1 N3 36.927
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-98.612516
Energy at 298.15K-98.611140
HF Energy-98.456375
Nuclear repulsion energy27.773247
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/STO-3G
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 1963 1745 336.96      
2 Σ 875 777 112.08      
3 Π 31 28 26.94      
3 Π 31 28 26.94      

Unscaled Zero Point Vibrational Energy (zpe) 1449.6 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 1288.5 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=FULL/STO-3G
B
0.44257

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.834
C2 0.000 0.000 -1.091
N3 0.000 0.000 0.149

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.92511.6849
C22.92511.2402
N31.68491.2402

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