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

using model chemistry: MP4/6-311G**

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 MP4/6-311G**
 hartrees
Energy at 0K-323.714896
Energy at 298.15K-323.715856
HF Energy-323.691120
Nuclear repulsion energy20.270097
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 MP4/6-311G**
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 157 152        

Unscaled Zero Point Vibrational Energy (zpe) 78.4 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 76.0 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 MP4/6-311G**
B
0.14696

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311G**

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.580
Na2 0.000 0.000 -1.580

Atom - Atom Distances (Å)
  Na1 Na2
Na13.1590
Na23.1590

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