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All results from a given calculation for Li3N (trilithium nitride)

using model chemistry: CISD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A'
1 2 no C3V 1A1

Conformer 1 (D3H)

Jump to S1C2
Energy calculated at CISD/3-21G*
 hartrees
Energy at 0K-76.462719
Energy at 298.15K-76.463703
HF Energy-76.309441
Nuclear repulsion energy23.524171
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 CISD/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1' 689 644 0.00      
2 A2" 100 93 59.34      
3 E' 894 835 80.40      
3 E' 894 835 80.40      
4 E' 219 205 24.36      
4 E' 219 205 24.36      

Unscaled Zero Point Vibrational Energy (zpe) 1507.2 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 1408.4 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 CISD/3-21G*
ABC
0.51254 0.51254 0.25627

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/3-21G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.000
Li2 0.000 1.768 0.000
Li3 1.531 -0.884 0.000
Li4 -1.531 -0.884 0.000

Atom - Atom Distances (Å)
  N1 Li2 Li3 Li4
N11.76791.76791.7679
Li21.76793.06203.0620
Li31.76793.06203.0620
Li41.76793.06203.0620

picture of trilithium nitride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Li2 N1 Li3 120.000 Li2 N1 Li4 120.000
Li3 N1 Li4 120.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C3V)

Jump to S1C1
Energy calculated at CISD/3-21G*
 hartrees
Energy at 0K-76.462719
Energy at 298.15K-76.463703
HF Energy-76.309442
Nuclear repulsion energy23.524528
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 CISD/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 689 644 0.00      
2 A1 100 93 59.36      
3 E 894 835 80.40      
3 E 894 835 80.40      
4 E 219 205 24.36      
4 E 219 205 24.36      

Unscaled Zero Point Vibrational Energy (zpe) 1507.3 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 1408.4 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 CISD/3-21G*
ABC
0.51255 0.51255 0.25628

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -0.000
Li2 0.000 1.768 0.000
Li3 1.531 -0.884 0.000
Li4 -1.531 -0.884 0.000

Atom - Atom Distances (Å)
  N1 Li2 Li3 Li4
N11.76781.76781.7678
Li21.76783.06203.0620
Li31.76783.06203.0620
Li41.76783.06203.0620

picture of trilithium nitride state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Li2 N1 Li3 120.000 Li2 N1 Li4 120.000
Li3 N1 Li4 120.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability