FINE CONTROL OF METAL ASSEMBLING IN NOVEL PHENYLAZOMETHINE DENDRIMERS FOR ADVANCED METAL-ORGANIC HYBRID NANO-MATERIALS，2004第一届高分子化学国际学术研讨会（6.5-6.8，长春）-中国聚合物网,论文下载

FINE CONTROL OF METAL ASSEMBLING IN NOVEL PHENYLAZOMETHINE DENDRIMERS FOR ADVANCED METAL-ORGANIC HYBRID NANO-MATERIALS

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关键词：

FINE CONTROL METAL ASSEMBLING NOVEL PHENYLAZOMETHINE DENDRIMERS
FOR ADVANCED METAL ORGANIC HYBRID NANO MATERIALS

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120K

所属学科：

结构表征

来源：

2004第一届高分子化学国际学术研讨会（6.5-6.8，长春）

简介：

Dendrimersarehighlybranchedorganicmacromoleculeswithsuccessivelayersor`generations‘ofbranchunitssurroundingacentralcore.Organicinorganichybridversionshavealsobeenproduced,bytrappingmetalionsormetalclusterswithinthevoidsofthedendrimers.Theirunusual,tree-liketopologyendowsthesenanometre-sizedmacromoleculeswithagradientinbranchdensityfromtheinteriortotheexterior,whichcanbeexploitedtodirectthetransferofchargeandenergyfromthedendrimerperipherytoitscore.Hereweshowthattinions,Sn2+,complextotheiminesgroupsofasphericalpolyphenylazomethinedendrimerinastepwisefashionaccordingtoanelectrongradient,withcomplexationinamoreperipheralgenerationproceedingonlyaftercomplexationingenerationsclosertothecorehasbeencompleted.Byattachinganelectron-withdrawinggrouptothedendrimercore,weareabletochangethecomplexationpattern,sothatthecoreiminesarecomplexedlast.

作者：

Kimihisa YAMAMOTO

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2007-06-28 15:57:31

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