Optical and Redox Properties of Ruthenium Phthalocyanine Complexes Tuned with Axial Ligand Substituents

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• 作者：Tristan Rawling ; Hong Xiao ; Sang-Tae Lee ; Stephen B. Colbran ; Andrew M. McDonagh
• 刊名：Inorganic Chemistry
• 出版年：2007
• 出版时间：April 2, 2007
• 年：2007
• 卷：46
• 期：7
• 页码：2805 - 2813
• 全文大小：199K
• 年卷期：v.46,no.7(April 2, 2007)
• ISSN：1520-510X

文摘

The optical and electrochemical properties of the ruthenium phthalocyanine complexes [{(t-Bu)₄Pc}Ru(4-Rpy)₂],where R = NO₂, Me, NH₂, and NMe₂, are reported. The electron density at the macrocycle may be adjusted usingthe axial ligand substituents, which have varying electron-donating/withdrawing strengths. Electrochemical datashow that the axial pyridine ligand substituents exert significant influence over the phthalocyanine ring-based redoxprocesses. The axial ligands also influence the electronic absorption properties of the complexes with influencealso being observed in the electrogenerated oxidized and reduced species.