Inspiration, Frustration, and Fascination: An Excursion into Low-Oxidation State Main Group Chemistry

在这个由化学系化学合成项目资助的项目中，乔治亚大学化学系的Gregory H. Robinson教授将追求一个雄心勃勃的项目，探索低氧化态主基团化学的挑战性领域。这项工作将证明n -杂环羰基及其n -杂环二羰基衍生物构成了一个独特的平台，从中可以获得许多不寻常的低氧化态主基团。建议工作的主要目标包括：(a)合成含有单坐标位的罕见物种；(b)二坐标苯的合成；(c) Si(0)原子和母原子硅烯的碳稳定化；(d)由主基团双原子同素异形体组成的扩展分子体系的制备。这些靶向的低氧化态物质可以进一步用于合成其他不寻常的主基团分子，如羰基衍生物的nhc稳定硼类似物。本项目利用一类有机碱在室温下稳定高活性双原子分子，如二硅、二磷和二砷。本提案描述了进一步研究这些碱稳定双原子的合成、结构和反应性的努力。这些碱基稳定的双原子有可能应用于沉积元素硅或磷的新方法，用于制造先进的电子产品和计算机芯片，以及化学催化。事实上，罗宾逊教授和他的同事最近获得了一项美国专利(获奖原因：他们发现利用有机碱来稳定双原子分子。

In this project funded by the Chemical Synthesis Program of the Chemistry Division, Professor Gregory H. Robinson of the Department of Chemistry at The University of Georgia will pursue an ambitious program to explore challenging areas of low-oxidation state main group chemistry. The work will demonstrate that N-heterocyclic carbenes and their N-heterocyclic dicarbene derivatives constitute a unique platform from which many unusual low-oxidation state main group species may be obtained. Major goals in the proposed work include: (a) the synthesis of unusual species containing one-coordinate borocations; (b) the synthesis of two-coordinate borylenes; (c) the carbene-stabilization of a Si(0) atom and a parent silylene; and (d) the preparation of extended molecular systems integrated with main group diatomic allotrope moieties. These targeted low-oxidation state species may further be utilized in the synthesis of other unusual main group molecules such as NHC-stabilized boron analogs of carbonyl derivatives.This project utilizes a class of organic bases to stabilize highly reactive diatomic molecules such as disilicon, diphosphorus, and diarsenic at room temperature. This proposal describes efforts to further study the synthesis, structure, and reactivity of these base-stabilized diatomics. It is possible that these base-stabilized diatomics may have applications related to new ways to deposit elemental silicon or phosphorus in the fabrication of advanced electronics and computer chips and chemical catalysis. Indeed, Professor Robinson and coworkers were recently granted a US patent (No.: 8278456) for their discovery of using organic bases to stabilize diatomic molecules.