Compounds of Selenium and Tellurium with Main-Group, Transition Metal and Lanthanide Element Bonds

约翰·阿诺德博士，加州大学伯克利分校化学系，受化学系无机、生物无机和有机金属化学项目的支持，研究较重的12族元素与金属的相互作用。这个主要是合成化学项目的目标是设计硫原酸配体，以稳定特定的金属-硫原相互作用，并利用这些配体制备一系列硫原酸化合物。金属醇氧化物和硫醇的类似物将用硫代酚酯基团-Se-R和-Te-R制备，其“R”基团被设计成具有稳定的金属-硒或-碲键的分子种。这些化合物的反应和机理将被系统化。基于金属-硒和-碲体系的先进电子材料有很多。然而，硒和碲的化学性质还没有被很好地理解。本项目旨在制备含有稳定金属-硒和-碲键的新型金属化合物，并使这些键的化学行为系统化。通过了解M-Se和M-Te键的典型反应，可以设计出通向电子材料的新途径。

Dr. John Arnold, Chemistry Department, University of California - Berkeley, is supported by the Inorganic, Bioinorganic, and Organometallic Chemistry Program of the Chemistry Division to study the interactions of the heavier group 12 elements with metals. This largely synthetic chemistry project targets the design of chalcogenate ligands that will stabilize specific metal-chalcogen interactions and the use of these ligands to prepare a range of chalcogenate compounds. Analogs of metal alkoxides and thiols will be prepared with chalcogenolate moieties, -Se-R and -Te-R, whose `R` groups are designed to yield molecular species with stable metal-selenium or -tellurium bonds. The reactions and mechanisms of these compounds will be systematized. There are a number of advanced electronic materials which are based on metal-selenium and -tellurium systems. Selenium and tellurium chemistry, however, is not yet well understood. This project aims at the preparation of new types on metal compounds that contain stable metal-selenium and -tellurium bonds and at systematizing the chemical behavior of these linkages. By knowing the typical reactions of M-Se and M-Te bonds, new routes to electronic materials may be designed.