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All results from a given calculation for Na2 (Sodium diatomic)

using model chemistry: QCISD/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
Energy calculated at QCISD/LANL2DZ
 hartrees
Energy at 0K-0.379592
Energy at 298.15K-0.380513
HF Energy-0.355987
Nuclear repulsion energy0.158751
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/LANL2DZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 135 129 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 67.4 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 64.2 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 QCISD/LANL2DZ
B
0.13198

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/LANL2DZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.667
Na2 0.000 0.000 -1.667

Atom - Atom Distances (Å)
  Na1 Na2
Na13.3334
Na23.3334

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