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

using model chemistry: CCSD(T)/cc-pVQZ

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 CCSD(T)/cc-pVQZ
 hartrees
Energy at 0K-100.202297
Energy at 298.15K-100.201345
HF Energy-99.815337
Nuclear repulsion energy27.528824
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(T)/cc-pVQZ
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 2095        
2 Σ 622 603        
3 Π 167 162        
3 Π 167 162        

Unscaled Zero Point Vibrational Energy (zpe) 1558.0 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 1510.8 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(T)/cc-pVQZ
B
0.37446

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVQZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.079
C2 0.000 0.000 -0.150
N3 0.000 0.000 1.020

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.92873.0986
C21.92871.1699
N33.09861.1699

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(T)/cc-pVQZ
 hartrees
Energy at 0K-100.205770
Energy at 298.15K-100.205013
HF Energy-99.821514
Nuclear repulsion energy29.214851
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(T)/cc-pVQZ
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' 2056 1993        
2 A' 650 631        
3 A' 174 169        

Unscaled Zero Point Vibrational Energy (zpe) 1439.8 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 1396.2 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(T)/cc-pVQZ
ABC
2.05392 0.80377 0.57770

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.422 -0.621 0.000
C2 -0.711 -0.365 0.000
N3 0.000 0.579 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.14851.8609
C22.14851.1817
N31.86091.1817

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 59.859 Li1 N3 C2 86.830
C2 Li1 N3 33.311
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at CCSD(T)/cc-pVQZ
 hartrees
Energy at 0K-100.206036
Energy at 298.15K-100.204901
HF Energy-99.826004
Nuclear repulsion energy28.297595
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(T)/cc-pVQZ
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 2097 2034        
2 Σ 705 683        
3 Π 100 97        
3 Π 100 97        

Unscaled Zero Point Vibrational Energy (zpe) 1500.9 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 1455.4 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(T)/cc-pVQZ
B
0.43354

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVQZ

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 -1.071
N3 0.000 0.000 0.108

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.96121.7814
C22.96121.1798
N31.78141.1798

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