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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Alcohol- and water-soluble bis(tpy)quaterthiophenes with phosphonium side groups: new conjugated units for metallo-supramolecular polymers
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Alcohol- and water-soluble bis(tpy)quaterthiophenes with phosphonium side groups: new conjugated units for metallo-supramolecular polymers

机译：具有phospho侧基的醇和水溶性双（tpy）四噻吩：金属超分子聚合物的新共轭单元

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摘要

Bis(tpy)quaterthiophenes with symmetrically distributed two and four 6-bromohexyl side groups were prepared and modified by the reaction with triethylphosphine to give the corresponding ionic species. Both ionic and non-ionic bis(tpy)quaterthiophenes (unimers) were assembled with Zn2+ and Fe2+ ions to conjugated metallo-supramolecular polymers (MSPs), of which the ionic ones are soluble in alcohols and those derived from tetrasubstituted unimers are soluble even in water. The differences in assembly are specified between systems with (i) ionic and non-ionic unimers, (ii) Zn2+ and Fe2+ ion couplers, and (iii) methanol and water solvents. A substantial decrease in the stability of Fe-MSPs and a surprisingly high red shift of the luminescence band of Zn-MSPs were observed on going from methanol to aqueous solutions.
机译：制备具有对称分布的两个和四个6-溴己基侧基的双（tpy）四噻吩并通过与三乙基膦反应进行改性，得到相应的离子种类。离子型和非离子型双（叔丁基）四噻吩（单体）均与Zn2 +和Fe2 +离子组装成共轭的金属超分子聚合物（MSP），其中的离子型可溶于醇，而衍生自四取代的单体的四聚体甚至可溶于水。在具有（i）离子和非离子单体，（ii）Zn2 +和Fe2 +离子耦合剂以及（iii）甲醇和水溶剂的系统之间指定了组装差异。从甲醇到水溶液，Fe-MSPs的稳定性大大降低，并且Zn-MSPs的发光带出现惊人的红移。

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