Synthesis of d- and p-Block Element Molecules, Reagents, and Precursors

在这个由化学系化学合成计划资助的项目中，麻省理工学院的Christopher康明斯教授将开发新的方法（配方），以生产下一代电子材料。康明斯教授和他的同事们也致力于优化和简化这些配方，以便它们能够被广泛采用和商业化。 直接从元素磷合成增值化合物的努力与化学工业的持续发展有关，一个具体的例子是孟山都合成除草剂草甘膦。气相研究的结果与宇宙的化学演化有关，并有助于提供对星际介质中顺式二氮烯等物种的探测和识别至关重要的基本常数。 此外，康明斯教授和他的学生正积极通过YouTube视频传播他们创新的合成化学成果，这些视频作为教育资源，帮助学生了解化学合成。他们还从事推广，介绍分子建模的方法和化学键合的概念，以学生在东波士顿公共hs.The拟议的研究探索新的过渡金属配合物和他们的小分子活化化学与分子氮和磷（N2和P4）的反应和金属配体多重键的产生为重点。该项目的一个关键方向是合成反应中间体的分子前体。在磷的情况下，PI和同事设计了能够进行逆[4+2]环化反应的试剂，以将双原子P2在溶液中或气相中转移。与蒽释放作为热力学驱动力的功能相同的系统提供了研究P2O分子生成的机会，有机和过渡金属系统都被作为PN、HCP、HCAs、亚乙烯基和顺式二氮烯的热前体。

In this project funded by the Chemical Synthesis Program of the Chemistry Division, Professor Christopher Cummins of MIT will develop new methods (recipes) that will enable the production of next-generation electronic materials. Professor Cummins and coworkers are also aiming to optimize and simplify the recipes so they can be broadly adopted and commercialized. The efforts to synthesize value-added compounds directly from elemental phosphorus are relevant to ongoing developments in the chemical industry, a specific example being the Monsanto synthesis of the herbicide glyphosate. Results from gas-phase studies are relevant to the chemical evolution of the cosmos and useful in providing fundamental constants crucial to the detection and identification of species such as cis-diazene in the interstellar medium. In addition, Professor Cummins and his students are actively disseminating the results of their innovative synthetic chemistry via YouTube videos, which serve as an educational resource and help students understand chemical synthesis. They are also engaged in outreach to introduce methods of molecular modeling and concepts of chemical bonding to students at East Boston Public HS.The proposed research explores novel transition-metal complexes and their small-molecule activation chemistry with an emphasis on reactions of molecular nitrogen and phosphorus (N2 and P4) and the generation of metal-ligand multiple bonds. A key direction of the project is the synthesis of molecular precursors to reactive intermediates. In the case of phosphorus, the PI and coworkers have designed reagents capable of undergoing retro [4+2] cyclization reactions to transfer diatomic P2 either in solution or into the gas phase. The same system that functions with release of anthracene as a thermodynamic driving force provides opportunity to study generation of the P2O molecule, with both organic and transition-metal systems being targeted as thermal precursors to PN, HCP, HCAs, vinylidene, and cis-diazene.