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

using model chemistry: CBS-Q

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 CBS-Q
 hartrees
Energy at 0K-100.196370
Energy at 298.15K-100.191634
HF Energy-99.772446
Nuclear repulsion energy27.861311
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 CBS-Q
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 2473 2473 1.24      
2 Σ 635 635 131.76      
3 Π 171 171 40.59      
3 Π 171 171 40.59      

Unscaled Zero Point Vibrational Energy (zpe) 1725.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1725.2 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 CBS-Q
B
0.36648

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.080
C2 0.000 0.000 -0.137
N3 0.000 0.000 1.009

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.94263.0881
C21.94261.1455
N33.08811.1455

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 CBS-Q
 hartrees
Energy at 0K-100.199719
Energy at 298.15K-100.198932
HF Energy-99.780554
Nuclear repulsion energy29.180092
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 CBS-Q
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' 724 724 139.07      
2 A' 107 107 30.09      
3 A' 2310 2310 105.83      

Unscaled Zero Point Vibrational Energy (zpe) 1570.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1570.5 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 CBS-Q
ABC
1.86386 0.81947 0.56921

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.459 -0.586 0.000
C2 -0.730 -0.352 0.000
N3 0.000 0.552 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.20151.8508
C22.20151.1617
N31.85081.1617

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 57.202 Li1 N3 C2 90.953
C2 Li1 N3 31.845
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at CBS-Q
 hartrees
Energy at 0K-100.201086
Energy at 298.15K-100.199889
HF Energy-99.780214
Nuclear repulsion energy28.536293
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 CBS-Q
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 2337 2337 243.60      
2 Σ 742 742 167.23      
3 Π 64 64 39.73      
3 Π 64 64 39.73      

Unscaled Zero Point Vibrational Energy (zpe) 1603.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1603.4 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 CBS-Q
B
0.42026

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.899
C2 0.000 0.000 -1.065
N3 0.000 0.000 0.099

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.96351.7998
C22.96351.1637
N31.79981.1637

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