Synthetic Coordination Chemistry

该奖项授予无机化学、生物无机化学和金属有机化学项目，为南加州大学化学系Christopher A.Reed博士对弱配位阴离子的研究提供持续支持。该项目的目标是开发基于二十面体CB(11)H(12)阴离子的碳硼烷阴离子的化学。阴离子将被功能化，通常使用卤素，以使其尽可能地惰性，以与阳离子配位。本文还提出了一些富勒烯的合成工作。将测定所得物种的碱度和氧化还原性质，并与已知的弱配位阴离子进行比较。将使用新的光谱和电化学方法来评定阴离子的碱度。开发的阴离子将用于铁化合物的磁化学研究，以确定S=3/2自旋态的极端磁性参数。亲电性、配位不饱和度、氧化电位和电解液行为有望达到新的极端。带负电荷的物种(阴离子)通常与带正电荷的物种(阳离子)紧密结合。通过制备阴离子，其形状和电荷分布阻止它们与阳离子紧密结合，从而产生高活性阳离子。这种化学的发展对许多化学过程都有影响，包括阳离子聚合和电池技术。这可能导致合成中使用的新的化学试剂和优良的催化剂。

This award in the Inorganic, Bioinorganic, and Organometallic Chemistry Program provides continued support for research on weakly coordinating anions by Dr. Christopher A. Reed, Chemistry Department, University of Southern California. The goal of the project is to develop the chemistry of carborane anions based on the icosahedral CB(11)H(12) anion. The anion will be functionalized, typically with halogens, to make it as inert as possible to coordination with a cation. Some synthetic work with fullerenes is also proposed. The basicity and redox properties of the resulting species will be determined and compared with those of known weakly coordinating anions. New spectroscopic and electrochemical methodswill be used to rank anion basicity. The anions developed will be used to carry out a magnetochemical investigation of an iron compound to determine the extreme magnetic parameters for the S = 3/2 spin state. New extremes of electrophilicity, coordinative unsaturation, oxidation potential and electrolyte behavior are expected to be observed. Negatively charged species (anions) usually associate tightly with species bearing a positive charge (cations). By preparing anions whose shape and charge distribution prevents them from closely associating with cations, highly reactive cations result. Development of this chemistry has implications for numerous chemical processes, including cationic polymerization and battery technology. It could lead to new chemical reagents for use in synthesis and excellent catalysts.