return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B2PLYP=FULL/cc-pCVTZ

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/cc-pCVTZ
 hartrees
Energy at 0K-100.368974
Energy at 298.15K-100.368051
HF Energy-100.212778
Nuclear repulsion energy27.671645
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/cc-pCVTZ
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 2163 2163 18.44      
2 Σ 636 636 120.91      
3 Π 172 172 36.68      
3 Π 172 172 36.68      

Unscaled Zero Point Vibrational Energy (zpe) 1571.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1571.7 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/cc-pCVTZ
B
0.38081

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/cc-pCVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.059
C2 0.000 0.000 -0.153
N3 0.000 0.000 1.013

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.90603.0722
C21.90601.1663
N33.07221.1663

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/cc-pCVTZ
 hartrees
Energy at 0K-100.372403
Energy at 298.15K-100.371660
HF Energy-100.217820
Nuclear repulsion energy29.375246
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/cc-pCVTZ
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' 2060 2060 26.71      
2 A' 662 662 146.22      
3 A' 178 178 33.84      

Unscaled Zero Point Vibrational Energy (zpe) 1449.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1449.9 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/cc-pCVTZ
ABC
2.07258 0.81902 0.58704

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/cc-pCVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.411 -0.607 0.000
C2 -0.706 -0.368 0.000
N3 0.000 0.575 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.13021.8410
C22.13021.1780
N31.84101.1780

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 59.647 Li1 N3 C2 86.838
C2 Li1 N3 33.515
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at B2PLYP=FULL/cc-pCVTZ
 hartrees
Energy at 0K-100.373089
Energy at 298.15K-100.371995
HF Energy-100.220623
Nuclear repulsion energy28.448687
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/cc-pCVTZ
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 2103 2103 137.09      
2 Σ 721 721 153.81      
3 Π 108 108 24.57      
3 Π 108 108 24.57      

Unscaled Zero Point Vibrational Energy (zpe) 1520.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1520.2 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 B2PLYP=FULL/cc-pCVTZ
B
0.44073

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/cc-pCVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.871
C2 0.000 0.000 -1.065
N3 0.000 0.000 0.111

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.93651.7600
C22.93651.1765
N31.76001.1765

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