Long and Medium-Term Research: Synthesis and Characteri- zation of Conducting Polymers Composed of Porphyrins Linked by Molecular Recognition Molecules

中长期研究：分子识别分子连接的卟啉导电聚合物的合成与表征

• 批准号: 9102007
• 负责人: Charles Drain
• 金额: $ 3.95万
• 依托单位: Rockefeller University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-09-01 至 1993-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9102007&HistoricalAwards=false
• 关键词: Long; Medium; Term; Research; Synthesis

Long & Medium-Term Research: Synthesis and Characterization of Conducting Polymers Composed of Porphyrins Linked by Molecular Recognition Molecules This award is made under the Program for Long- & Medium- Term Research at Foreign Centers of Excellence, which enables U.S. researchers to work 3 to 12 months abroad at research centers of proven excellence, and to provide opportunities for joint research, and the use of unique or complementary facilities, expertise and experimental conditions abroad. This award will support a 12-month visit by Dr. Charles M. Drain of The Rockefeller University with Professor Jean-Marie Lehn of Institut Louis Pasteur, Strasbourg, France. Various molecular, spontaneously self assembling systems are found in nature: hydrophobic and hydrophilic interactions put lipids into liquid crystalline membranes; hydrogen bonding and electrostatic interactions cause molecular recognition of DNA base pairs creating specific helical structures; and ionic forces arrange solid state lattices into crystals. All rely on molecular recognition between complementary components. As effective electronic conduction through a given media requires it be highly organized into a specific crystalline or molecular lattice, structures difficult to achieve in organic polymers and films, Dr. Drain proposes to use self assembling systems to create conducting polymers and films of synthetic porphyrins. He will use complementary molecular recognition moieties which are derivatives of hydrogen bonding molecules already described by Professor Lehn. Dr. Drain will synthesize and characterize three sets of porphyrins derivatized with the molecular recognition molecules resulting in mono, di, and tetra substituted meso-tetra-alkylporphyrins. The mono- substituted and the di-substituted porphyrins should form mesomorphic and crystalline phases via two different porphyrin intercalation geometries, while the tetra- substituted porphyrin should form highly organized monolayers on solid supports. Dr. Drain proposes to synthesize, characterize, and examine the physical properties of these arrays, including measurement of polymeric conductance and photovoltage both in lipid bilayers and on solid supports such as tin oxide. The award recommendation provides funds to cover international travel and a flat administrative allowance of $250 for the U.S. home institution.

长期中期研究：合成和表征 由卟啉连接的导电聚合物 分子识别分子 该奖项是根据长期-中等- 在国外卓越中心的长期研究， 使美国研究人员能够在国外工作3到12个月， 卓越的研究中心，并提供 联合研究的机会，以及使用独特的 或补充设施、专业知识和实验 国外的条件。 该奖项将支持查尔斯博士为期12个月的访问 M.洛克菲勒大学的流失与教授 斯特拉斯堡路易斯巴斯德研究所的Jean-Marie Lehn， 法国 各种分子自发自组装 在自然界中发现的系统：疏水和亲水 相互作用使脂质进入液晶膜; 氢键和静电相互作用导致 DNA碱基对的分子识别产生特异性 螺旋结构;和离子力排列固态 晶格转变成晶体。 都依赖于分子识别 互补成分之间。 作为有效的电子 通过给定介质的传导要求其高度 组织成特定的晶体或分子 晶格，在有机材料中难以实现的结构 聚合物和薄膜，Drain博士建议使用自 组装系统以产生导电聚合物， 合成卟啉的薄膜。 他将使用互补 分子识别部分，其是 氢键分子已经被教授描述过了 莱恩 德雷恩博士将合成并描述三个 用分子衍生的卟啉组 识别分子，导致单，二，和四 取代的meso-四烷基卟啉。 单- 取代的和二取代的卟啉应该形成 介晶相和结晶相通过两种不同的 卟啉插层几何形状，而四- 取代的卟啉应形成高度有序的 固体载体上的单层。 Dr. Drain建议 合成、表征和检查 这些阵列的性质，包括测量 聚合物电导和光电压 双层和在固体载体如氧化锡上。 授标建议提供资金， 国际旅费和固定行政津贴 250美元的美国本土机构。