Catecholate and 2,3-acenediolate complexes of d⁰ ions as prospective materials for molecular electronics and spintronics

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• 作者：Przemys艂aw Kwolek^a ; Marek Oszajca^b ; Konrad Szaci艂owski^a ; ^b ; ^{szacilow@agh.edu.pl} ; ^{szacilow@chemia.uj.edu.pl}
• 关键词：Wide band gap semiconductors ; Organic semiconductors ; Acenes ; Catecholates
• 刊名：Coordination Chemistry Reviews
• 出版年：2012
• 期刊代码：27_00108545
• 类别：ch
• 出版时间：August, 2012
• 卷：256
• 期：15-16
• 页码：1706-1731
• 文件大小：5293 K

摘要

Transition metal oxides at their highest oxidation states usually show semiconducting properties. The most notable example is titanium dioxide, whereas other oxides and oxide binary phases are also wide band gap semiconductors. These materials are usually studied from the point of view of the solid state chemistry or catalysis, but their semiconducting properties upon interaction with photosensitizers are not well recognized with the notable exception of titanium dioxide. Application of these semiconductors as materials for switching devices is also not well recognized. This review paper describes the electronic structure and reactivity of several transition metal oxides towards 2,3-dihydroxyacenes. Furthermore, a simple quantum-mechanical model for the description of such systems is provided. It is demonstrated that not only titanium dioxide, but also other d⁰ transition metal oxides can be photosensitized with catechol-derived ligands and that the properties of such systems are strongly affected by the nature of the ligand.