Electrochemical and Spectroelectrochemical Studies on Sandwich-type Bis(phthalocyaninato)lanthanide Complexes

Abstract

Sandwich-type bis(phthalocyaninato)lanthanide complexes, [Ln(Pc)2]z, exhibit intriguing characteristics which stem from the interactions between the two π-conjugated phthalocyanine rings held by the central metal ion in close proximity, and they have been explored as materials for electrochromic displays, molecular semiconductors, gas-sensors and for nonlinear optical applications. This article reviews some topics on their structural, electrochemical, chemical, and spectral characteristics.