Inorganic Molecular Complexes: Potential for Growth of a New Subject Area in Self-Assembly

Arrangements of fluorophores in the salts of imidazole tethered anthracene derivatives with pyridinedicarboxylic acids influencing photoluminescence

“…17,18 There are limited examples of assemblies containing the conjugate acid or the base part as neutral components in organic salts [37][38][39] and inorganic complexes. 40 Any of the three forms of pyridinedicarboxylic acids, namely, the neutral, mono-carboxylate or dicarboxylate, could get incorporated in the salts either as partner molecules or anions. Having neutral pyridinedicarboxylic acid in the ionic cocrystal is a new observation and suggest that compositions of salts should have priority while dealing with the salts of polycarboxylic aids with the polytopic base.…”

“…[17][18] There are limited examples of assemblies containing conjugate acid or base part as neutral components in organic salts [37][38][39] and inorganic complexes. 40 Any of the three forms of the pyridinedicarboxylic acids, namely, the neutral, mono-carboxylate From such a small difference of pKa, one would expect similar cocrystal from the two positional isomers of H 2 pdc, [11][12] but it did not happen. So, it was not possible to make prior prediction on the composition of the crystalline products.…”