inert atmosphere glove box for organometallic synthesis and catalysis

大多数工业化学反应和许多有机化合物的合成转化都是通过过渡金属催化剂进行的。 在催化金属中心的电子排列的变化有可能在这些催化剂的效率和选择性中发挥关键作用，因此理解和利用控制这些性质的因素可以导致改进的催化体系的合理设计。 一个综合的合成，机械，和计算方法来探测电子和几何变化的影响的基本反应的明确定义和孤立的模型的催化中间体将提供有价值的见解，以指导下一代的设计师催化剂的发展。 拟议的化学研究涉及对空气和水分高度敏感的材料的操作，因此化合物产生、分离和表征的气氛必须严格不含氧气和水。 最简单和最通用的方法是使用惰性气氛手套箱，这是一个充满惰性氮气的封闭空间，并配备了各种附件，以允许储存，反应和分离高度敏感的化合物。 本提案中描述的手套箱系统配备了许多附件，可以进行从头到尾的化学操作。 一个冷井和冰箱允许低温反应和化合物的分离。 高精度分析天平用于化学试剂的称量。 通过催化捕集器使内部空气持续通过，保持空气的纯度，各种前室允许将材料运输到盒子中或从盒子中运输出来。 如果箱内的氧气或湿度水平超过可接受的阈值，传感器会发出警告。 其结果是一个集成的系统，使化学合成的所有方面都可以在严格的无空气和无水分的环境中进行。

The majority of industrial chemical reactions and many synthetic transformations of organic compounds are carried out by transition-metal catalysts.  Changes in the arrangement of electrons at the catalytic metal centre have the potential to play a critical role in the efficiency and selectivity of these catalysts, so that understanding and exploiting the factors that control these properties can lead to the rational design of improved catalytic systems.  An integrated synthetic, mechanistic, and computational approach to probe the effects of electronic and geometric changes on the fundamental reactions of well-defined and isolated models for catalytic intermediates will afford valuable insights to guide the development of the next generation of designer catalysts.       The proposed chemical investigations involve the manipulation of highly air- and moisture-sensitive materials, so that the atmosphere in which the compounds are generated, isolated, and characterized must be rigorously free of both oxygen and water.  The simplest and most versatile means to do so is through the use of an inert-atmosphere glove box, an enclosed space filled with inert nitrogen gas and equipped with various accessories to allow for the storage, reaction, and isolation of highly sensitive chemical compounds.         The glove box system described in this proposal comes equipped with a number of accessories that make possible start-to-finish chemical manipulations.  A cold well and freezer allow for low-temperature reaction and isolation of chemical compounds.  A high-precision analytical balance is used for weighing of chemical reagents.  The atmospheric purity is maintained by continual passage of the interior atmosphere through a catalytic trap, and various antechambers permit the transport of materials into and out of the box.  Sensors give warning should the oxygen or moisture levels within the box exceed an acceptable threshold.  The result is an integrated system that makes possible all aspects of chemical synthesis inside a rigorously air- and moisture-free environment.