The Periodic Table of Diatomic Molecules -- I . . .

Abstract -- Related periodicities in properties of diatomic molecules are well known and periodic tables have already been constructed for some classes of molecules. The major difficulty is that two orthogonal periodicities are superposed, at 45° on the Z1,Z2 plane, on two others. Our proposed complete table is formed by cutting the plane along the Z1 and Z2 directions and stacking areas for similar molecules into 15 blocks. Evidence is presented that 15 is the correct number and that the stacking orders are optimal. It is shown that generalization to ionized molecules requires a fourth dimension, but that this 4-d architecture can be mapped into three dimensions. Computer curve=fitting of data has yielded initial results for re in three blocks. 116 data fitted to re = A+ ln Öc (where c is area number and A depends on the compartment, in the block) differ from tabulated data by 3%. 254 predicted re are given, some of laser interest, some of superheavy (quasi) molecules, and some for molecules with superheavy atoms.

A Periodic Table of Free Diatomic Molecules -- II . . .

Abstract -- Recent theory substantiates the stacking order of areas in the recently proposed periodic table of the free diatomic molecules. The periodic table suggests curve-fitting algorithms for re which, after semi-empiracl perturbations yield ground-state values for re which agree with literature values and with those from an alternate algorithm to from 5 to 8%. 800 predicted re extend to superheavy quasimolecules and to molecules with superheavy atoms, and many pertain to molecules of laser interest.

The Periodic System For Free Diatomic Molecules -- III . . .

Abstract -- A periodic system from free neutral diatomic molecules, previously proposed on the basis of tabulated data, is shown related topologically to the chart of the atoms. The relation is generalized to ionized atoms and ionized molecules. Support is drawn from tabulated data.