ジフェニルアセチレンで連結されたジアゾ基を持つ樹状ポリマーの合成と光照射後の磁気的性質

Translated title of the contribution: Preparation and magnetic properties of dendritic polymer having polydiazo groups connected by diphenylacetylenes

秋田 健行, 古賀 登

Research output: Contribution to journalArticle

Abstract

In order to achieve photo-responsive super-high spin organic compounds, preparations and magnetic properties after irradiation of dendritic polymers having diazo groups connected by diphenylacetylenes were investigated in this work.Polyketone precursor of the polydiazo polymer was prepared by Sonogashira reaction of core triiodo compound and branched diiodoethynyl compound followed by reaction with terminating tetraalkyloxy compound.Components having molecular weight larger than about 3 x 10<sup>3</sup> was separated by GPC and was used in following experiments.The polyketone polymer was converted to polydiazo polymer by the usual method through hydrazone compound.Magnetic properties after photolysis of the polydiazo polymers in 2-MTHF frozen solutions were investigated by SQUID. The curve fitting for the field dependence of magnetization at 5 K provided the average spin multiplicities of the photoproducts as S = 6.3.
Translated title of the contributionPreparation and magnetic properties of dendritic polymer having polydiazo groups connected by diphenylacetylenes
Original languageJapanese
Pages (from-to)344-344
Number of pages1
Journal基礎有機化学討論会要旨集(基礎有機化学連合討論会予稿集)
Volume18
Issue number0
DOIs
Publication statusPublished - 2006

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