Synthetic, spectroscopic and theoretical study of novel supramolecular structures composed of lanthanide phthalocyanine double-decker complexes

摘要

This paper reviews the author's attempts to create novel supramolecular structures composed of bis (phthalocyan- inato) lanthanides and the analysis of t heir geometric and electronic structures. We synthesized tetra -and mono-crown -substituted bis(phthalocyaninato) lutetium, which show different aggregate forms under various conditions. The aggregate structures fall into three categories: (1) a D_4h vertically stacked structure formed from the tetra-crown complex and cations such as K~+ or NH~+ _4; (2) a sliding form composed of tetra-crown complexes in methanol/chloroform mixed solvent; and (3) a pivoted form constructed from mono-crown substituted complexes with cations such as K~+. The electronic structure of the supramolecular structures and magnetic interactions within are discussed.