Electrochemical and spectroelectrochemical properties of methylendioxy-phenoxy-substituted novel lutetium (III) mono- and bis-phthalocyanines

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• 作者：Ceyda Bozo臒lu^a ; Mü ; rsel Ar谋c谋^b ; Ahmet Lü ; tfi U臒ur^c ; Ali Erdo臒mu艧^d ; ^{erdogmusali@hotmail.com" class="auth_mail} ; At谋f Koca^a ; ^{akoca@marmara.edu.tr" class="auth_mail}
• 关键词：Electrochemistry ; Lutetium ; Bis-phthalocyanines ; Spectroelectrochemistry
• 刊名：Synthetic Metals
• 出版年：April, 2014
• 年：2014
• 卷：190
• 期：Complete
• 页码：56-65
• 全文大小：2607 K

文摘

Peripheral (LuPc(p)) and non-peripheral (LuPc(np)) derivatives of lutetium (III) mono-phthalocyanines and peripheral analogue of lutetium (III) bis-phthalocyanine (LuPc₂) substituted with 3,4-(methylendioxy)-phenoxy have been synthesized and characterized by elemental analysis, FT-IR, UV-vis spectroscopy, and mass spectroscopy. Electrochemical and spectroelectrochemical analyses of the complexes were performed in solution. While LuPc(p) and LuPc(np) gave common Pc ring-based electron transfer processes, ring-to-ring interaction of LuPc₂ completely altered the redox behaviors of the complex. The first reduction reaction of LuPc₂ was recorded even at positive potentials, while the LuPc(p) and LuPc(np) gave this reduction reaction at around 鈭?.00 V. Due to the 蟺-蟺 interaction of phthalocyanine rings around the lutetium core of LuPc₂, a very narrow 螖E_1/2 (0.50 V) was recorded. LuPc₂ illustrated distinct color differences between the electrogenerated anionic and cationic forms of the complex, while LuPcs did not give obvious color changes.