Diferrocenyl Molecular Wires. The Role of Heteroatom Linkers
Journal of the American Chemical Society2010Vol. 132(30), pp. 10374–10382
Citations Over TimeTop 10% of 2010 papers
Abstract
Diferrocenyl molecular "wires", in which two ferrocenes are linked by a conjugated chain, allowing the communication of redox information between the ferrocenes, are a versatile platform on which to investigate notions of molecular conductivity. In this paper, we examine the role of heteroatoms--including O, P, S, and Se, as well as C atoms in various oxidation states--separated from the ferrocenes by intervening double bonds which minimize any steric effects. Surprisingly, oxygen is a better electronic mediator than sulfur, a phenomenon we attribute to superior molecular orbital overlap. These fundamental studies on redox coupling will help to guide the design of efficient organic conductors for organic electronics.
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