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

using model chemistry: QCISD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A'
Energy calculated at QCISD/6-31+G**
 hartrees
Energy at 0K-76.973025
Energy at 298.15K 
HF Energy-76.731984
Nuclear repulsion energy23.564905
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 QCISD/6-31+G**
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' 638 603 0.00      
2 A2" 242i 229i 453.80      
3 E' 814 770 66.88      
3 E' 814 770 66.92      
4 E' 172 163 59.40      
4 E' 172 163 59.43      

Unscaled Zero Point Vibrational Energy (zpe) 1184.0 cm-1
Scaled (by 0.9454) Zero Point Vibrational Energy (zpe) 1119.4 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 QCISD/6-31+G**
ABC
0.51431 0.51431 0.25716

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.000
Li2 0.000 1.765 0.000
Li3 1.528 -0.882 0.000
Li4 -1.528 -0.882 0.000

Atom - Atom Distances (Å)
  N1 Li2 Li3 Li4
N11.76481.76481.7648
Li21.76483.05673.0567
Li31.76483.05673.0567
Li41.76483.05673.0567

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