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

using model chemistry: MP3/6-31G*

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 MP3/6-31G*
 hartrees
Energy at 0K-100.057158
Energy at 298.15K-100.056209
HF Energy-99.771176
Nuclear repulsion energy27.472065
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 MP3/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σ 2310 2168 8.36      
2 Σ 630 591 120.43      
3 Π 169 159 44.68      
3 Π 169 159 44.68      

Unscaled Zero Point Vibrational Energy (zpe) 1639.2 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 1538.6 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 MP3/6-31G*
B
0.37149

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.089
C2 0.000 0.000 -0.148
N3 0.000 0.000 1.022

Atom - Atom Distances (Å)
  Li1 C2 N3
Li11.94113.1113
C21.94111.1702
N33.11131.1702

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 MP3/6-31G*
 hartrees
Energy at 0K-100.063513
Energy at 298.15K-100.062792
HF Energy-99.778901
Nuclear repulsion energy29.066518
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 MP3/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 2182 2048 35.09      
2 A' 665 624 135.42      
3 A' 197 185 24.44      

Unscaled Zero Point Vibrational Energy (zpe) 1522.4 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 1428.9 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 MP3/6-31G*
ABC
2.07128 0.78082 0.56705

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 1.442 -0.600 0.000
C2 -0.721 -0.367 0.000
N3 0.000 0.572 0.000

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.17541.8579
C22.17541.1835
N31.85791.1835

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 58.622 Li1 N3 C2 88.433
C2 Li1 N3 32.946
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V LiNC)

Jump to S1C1 S1C2
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-100.059101
Energy at 298.15K-100.057675
HF Energy-99.779493
Nuclear repulsion energy28.174616
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 MP3/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σ 2224 2087 151.31      
2 Σ 721 677 156.22      
3 Π 22 20 35.16      
3 Π 22 20 35.16      

Unscaled Zero Point Vibrational Energy (zpe) 1493.9 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 1402.2 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 MP3/6-31G*
B
0.42781

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.905
C2 0.000 0.000 -1.076
N3 0.000 0.000 0.106

Atom - Atom Distances (Å)
  Li1 C2 N3
Li12.98131.7993
C22.98131.1820
N31.79931.1820

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