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

using model chemistry: CCSD=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 CCSD=FULL/6-31G*
 hartrees
Energy at 0K-100.073184
Energy at 298.15K-100.072266
HF Energy-99.770377
Nuclear repulsion energy27.410421
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 CCSD=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 2231 2119 11.80      
2 Σ 632 601 114.79      
3 Π 179 170 45.27      
3 Π 179 170 45.27      

Unscaled Zero Point Vibrational Energy (zpe) 1610.7 cm-1
Scaled (by 0.9498) Zero Point Vibrational Energy (zpe) 1529.8 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 CCSD=FULL/6-31G*
B
0.37264

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.082
C2 0.000 0.000 -0.153
N3 0.000 0.000 1.023

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.92983.1059
C21.92981.1762
N33.10591.1762

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 CCSD=FULL/6-31G*
 hartrees
Energy at 0K-100.078690
Energy at 298.15K-100.077971
HF Energy-99.778236
Nuclear repulsion energy29.012767
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 CCSD=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' 2115 2009 29.36      
2 A' 659 626 133.71      
3 A' 201 191 23.64      

Unscaled Zero Point Vibrational Energy (zpe) 1487.2 cm-1
Scaled (by 0.9498) Zero Point Vibrational Energy (zpe) 1412.6 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 CCSD=FULL/6-31G*
ABC
2.03427 0.78977 0.56890

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.440 -0.596 0.000
C2 -0.720 -0.372 0.000
N3 0.000 0.574 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.17181.8551
C22.17181.1883
N31.85511.1883

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 58.624 Li1 N3 C2 88.221
C2 Li1 N3 33.155
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at CCSD=FULL/6-31G*
 hartrees
Energy at 0K-100.074313
Energy at 298.15K-100.072960
HF Energy-99.779034
Nuclear repulsion energy28.108827
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 CCSD=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 2164 2056 135.99      
2 Σ 717 681 151.16      
3 Π 41 39 35.84      
3 Π 41 39 35.84      

Unscaled Zero Point Vibrational Energy (zpe) 1481.4 cm-1
Scaled (by 0.9498) Zero Point Vibrational Energy (zpe) 1407.0 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 CCSD=FULL/6-31G*
B
0.42753

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.904
C2 0.000 0.000 -1.078
N3 0.000 0.000 0.109

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.98201.7949
C22.98201.1870
N31.79491.1870

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