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All results from a given calculation for LiBe (Lithium Beryllium)

using model chemistry: QCISD(T)/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 2Σ
Energy calculated at QCISD(T)/aug-cc-pVTZ
 hartrees
Energy at 0K-22.061238
Energy at 298.15K-22.059994
HF Energy-22.011075
Nuclear repulsion energy2.428983
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(T)/aug-cc-pVTZ
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 307 297        

Unscaled Zero Point Vibrational Energy (zpe) 153.7 cm-1
Scaled (by 0.9668) Zero Point Vibrational Energy (zpe) 148.6 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 QCISD(T)/aug-cc-pVTZ
B
0.62490

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -1.494
Be2 0.000 0.000 1.121

Atom - Atom Distances (Å)
  Li1 Be2
Li12.6150
Be22.6150

picture of Lithium Beryllium state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability