New Strategies towards Inorganic-Organic Materials with Extended pi-Systems

具有扩展 pi 系统的无机-有机材料的新策略

• 批准号: 0202040
• 负责人: John Protasiewicz
• 金额: --
• 依托单位: Case Western Reserve University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-03-15 至 2008-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0202040&HistoricalAwards=false
• 关键词: New; Strategies; towards; Inorganic; Organic

John Protasiewicz, Department of Chemistry, Case Western Reserve University, is supported by the Inorganic, Bioinorganic and Organometallic Chemistry Program to investigate new compounds containing multiple bonds to phosphorus. The project has three main goals: 1) to develop new and better methodologies for the synthesis of phosphaalkenes, diphosphenes and other P=X bonds; 2) synthesize and study new ligands containing several low coordinate main group elements; and 3) characterize extended systems having interesting optical and electronic properties. The fundamental chemistry of phosphinidenes will be examined following their thermal or photochemical generation from phosphinidene precursors. In addition, phosphinidene precursors will be used to construct discrete oligomers and ultimately polymers with desireable properties. Phosphorus-containing analogs to poly(phenylenevinylenes), PPV, and poly(phenyleneethylenes), PPE, are two of the polymers to be prepared and studied.Conjugated oligomers and polymers are technologically important as organic light-emitting diodes (OLEDs), molecular wires and molecular switches. Incorporating phosphorus or related main group elements into the backbone of these polymers can change the properties in many ways. Students and researchers trained to work in this project will gain a broad knowledge in inorganic and organometallic synthetic methods as well as interdisciplinary areas such as polymer chemistry and molecular electronics.

Case Western Reserve University化学系的John Protasiewicz得到了无机，生物有机和有机金属化学计划的支持，该计划研究了含有多种磷的新化合物。该项目具有三个主要目标：1）开发用于合成磷酸烯，双磷烯和其他P = X键的新方法； 2）合成和研究包含几个低坐标主要组元素的新配体； 3）表征具有有趣的光学和电子特性的扩展系统。磷酸化烯的基本化学将在磷酸前体的热或光化学产生之后检查。另外，磷酸化前体将用于构建具有理想特性的离散低聚物和最终的聚合物。含磷的类似物对聚（苯乙烯乙烯基），PPV和聚（苯乙烯烯），PPE是要准备和研究的两种聚合物。偶联的低聚物和聚合物在技术上很重要，作为有机光发光二二二极管（OLEDS）（OLEDS）（OLEDS）（OLECULAL），分子细胞和分子丝。将磷或相关的主要组元素掺入这些聚合物的骨干中可以在许多方面改变性能。 接受过该项目工作的学生和研究人员将获得无机和有机金属合成方法以及跨学科区域（例如聚合物化学和分子电子学）的广泛知识。