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Development of Organomagnetic and Organoconducting Materials with Novel Photo-Functionality

具有新型光功能的有机磁性和有机导电材料的开发

基本信息

批准号：
09640644
负责人：
NAKATSUJI Shin'ichi
金额：
$ 1.98万
依托单位：
HIMEJI INSTITUTE OF TECHNOLOGY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1999
项目状态：
已结题

项目摘要

In order to develop organomagnetic materials with novel photo-functionality, we have tried to prepare series of photochromic compounds with stable radical substituents and we could successfully prepare series of spiropyran/merocyanine, norbornadiene/quadricyclane and anthracene/anthracene-dimer systems with stable radicals. Their structural changes have been found to occur by light/heat in solution but not in the solid-state. Although the tendency of the preservation of the magnetic interactions has been apparent in most of the latter two systems (norbornadiene/quadricyclane and anthracene/anthracene-dimer systems) albeit the change of the magnitude of the interactions, the switching behaviors of the magnetic interactions have been observed in some of the derivatives of spiropyran/merocyanine system. Further development of such photo-functional organomagnetic materials that exihit the switching behaviors in the solid-state is still in progress in our laboratory.We have found that some sorts of stable radicals such as TEMPO radicals or verdazyl radicals work as organic donors to form CT complexes with appropriate acceptors and among the series of CT complexes being consisted of stable radicals and acceptors, relatively high conducting behaviors have been found in a series of CT complexes derived from alkylamino-TEMPO and tetracyanoazulene, although semiconducting behaviors have been apparent from the temperature dependence of their conductivities. Several pyridiuium salts with stable radical substituents have been prepared to investigate their photochemical, conducting and magnetic properties and found the interesting magnetic properties in some of the compounds prepared but further studies on their properties are now under way together with the development of other interesting systems.

为了开发具有新型光功能的有机磁性材料，我们尝试制备了一系列具有稳定自由基取代基的光致变色化合物，成功地制备了一系列具有稳定自由基的螺吡喃/汞、降冰片二烯/四环烷和蒽/蒽二聚体体系。已发现它们的结构变化在溶液中通过光/热发生，但在固态中不发生。虽然在后两种体系（降冰片二烯/四环烷和蒽/蒽-二聚体体系）中，尽管磁相互作用的大小发生了变化，但磁相互作用的保持趋势是明显的，但在螺吡喃衍生物中观察到了磁相互作用的开关行为。本实验室还在进一步开发这类在固态下表现出开关行为的光功能有机磁性材料，我们发现，一些稳定的自由基如克里思自由基或Verdazyl自由基作为有机给体与合适的受体形成CT配合物，在由稳定的自由基和受体组成的系列CT配合物中，在衍生自烷基氨基-TEMPO和四氰基奥的一系列CT配合物中发现了相对高的导电行为，尽管从它们的电导率的温度依赖性来看，半导体行为是明显的。合成了几种具有稳定自由基取代基的吡啶鎓盐，研究了它们的光化学、导电和磁性质，并在一些化合物中发现了有趣的磁性质，但对其性质的进一步研究正在进行中，同时还开发了其他有趣的体系。

项目成果

期刊论文数量（54）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

S. Nakatsuji et al.: "Preparation and Properties of CT Complexes 〜"Molecular Crystals and Liquid Crystals. 313. 235-240 (1998)

S. Nakatsuji 等人：“CT 配合物的制备和性质 ~”分子晶体和液晶 313. 235-240 (1998)。

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S.Nakatsuji, Y.Amano, H.Kawamura and H.Anzai: "Methylchalcogen Derivatives of 1,4,5,8-Tetrathiatetralin"Liebigs Ann./Recueil. 729-732 (1997)

S.Nakatsuji、Y.Amano、H.Kawamura 和 H.Anzai：“1,4,5,8-Tetrathiatetralin 的甲基硫属元素衍生物”Liebigs Ann./Recueil。

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S.Nakatsuji, M.Saiga, N.Haga, A.Naito, T.Hirayama, M.Nakagawa, Y.Oda, H.Anzai, K.Suzuki, T.Enoki, M.Mito and K.Takeda: "2-(2'Halophenyl)-α-nitronyl nitroxides"New J.Chem.. 275-280 (1998)

S.Nakatsuji、M.Saiga、N.Haga、A.Naito、T.Hirayama、M.Nakakawa、Y.Oda、H.Anzai、K.Suzuki、T.Enoki、M.Mito 和 K.Takeda：“2 -(2卤苯基)-α-硝酰硝基氧”New J.Chem.. 275-280 (1998)