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机构地区:[1]北海市工业和信息化委员会,广西北海536000 [2]北海市环保局,广西北海536000 [3]清华大学化学系,北京100084
出 处:《化工技术与开发》2012年第7期29-31,35,共4页Technology & Development of Chemical Industry
摘 要:α位含氧取代基(如烷氧基、芳氧基)锌酞菁在非配位溶剂(如甲苯、氯仿、二氯甲烷)中,酞菁中心的锌离子与酞菁大环周边的氧能够形成分子间Zn-O配位,产生酞菁J-聚集体。而对β位取代锌酞菁通过Zn-O配位形成J-聚集体的研究迄今未见报道。本文将具有空间定位和强给电子能力的二苯甲氧基连接到锌酞菁环的β位,设计并合成了四-β-二苯甲氧基锌酞菁。利用吸收光谱和荧光光谱作为分析手段,发现在极性较大的非配位溶剂中,β位含氧取代锌酞菁也能通过Zn-O配位形成J-聚集体。研究表明强化取代基的空间定位作用和给电子作用,能有效促进酞菁J-聚集行为。α-position oxygenic substituent(alkoxy and phenoxyl) phthalocyanine zinccould form J-aggregate through the Zn-O coordination between the central zinc ion of phthalocyaine and peripheral oxygen of phthalocyanine macrocycle in non-coordinate solvents(such as toluene and chloroform).Up to the present time,there was no report about the β-position oxygenic substituent phthalocyanine zincJ-aggregate through the Zn-O coordination.In this report,the dibenzmethoxy substituent with strong spatialization and electron donating was linked to the β-position of phthalocyanine zinc(Ⅱ),and the tetra-β-dibenzmethoxy phthalocyanine zinc(Ⅱ) was designed and synthesized.By the analysis of UV-Vis absorption spectrum and fluorescence emission spectrum,the β-position oxygenic substituent phthalocyanine zinc(Ⅱ) was observed to form J-aggregate through the Zn-O coordination in non-coordinate polar solvent for the first time.The research showed that the phthalocyanine J-aggregate behavior could be greatly promoted by enhancing the effect of spatialization and electron donating of the substituents.
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