MACROCYCLIC METAL-COMPLEXES AS LADDER POLYMERS

Macrocyclic bis-dienes and diendienophile were prepared in Diels-Alder reactions starting from the bis-dienophilic (hemiporphyrazinato)nicke l complex 1. Compound 1 was reacted either with the tetraene 2 or with tetraphenylcyclopentadienone (4). By combination of macrocyclic bis-d ienes and bis-dienophiles, ladder-type oligomers (e.g. 9 or 10) were s ynthesized. The described oligomers are precursors for the correspondi ng conjugated oligomers, which are of interest as organic conductors. The preparation of the corresponding phthalocyanine compounds e.g. 13- 16 and a method for obtaining the wanted ''D-2h'' phthalocyanine 19 wi thout using tedious methods are reported.