Soluble Transition-Metal Chalcogenides

在无机、生物无机和有机金属化学项目的支持下，James A. Ibers教授将探索硫族化合物（包括氧、硫、硒和碲的一组元素）的可溶性过渡金属化合物的化学性质。研究这些物种的一个实际原因是它们与用作电子材料的金属硫化物和硒化物密切相关。该项目将重点研究可溶性过渡金属硒化物的化学性质。将合成并表征四硒-钨酸盐（II）和四硒多钼酸盐（II）的混合金属配合物，以及六硒多钼酸盐（II）等更高的原物。溶液法将用于与钨、钼以外的金属合成新的过渡金属硒化物配合离子，以及新的混合烷基硒酸盐/硒化物。还将研究新的过渡金属硫系离子的固态途径。最后，将研究可溶性硫属化合物的反应化学，首先重点研究它们与活性乙炔的反应。

With support from the Inorganic, Bioinorganic and Organometallic Chemistry Program, Professor James A. Ibers will explore the chemistry of soluble transition metal compounds of the chalcogenides, that group of elements which includes oxygen, sulfur, selenium and tellurium. A practical reason for studying these species is their close relationship to metal sulfides and selenides which are used as electronic materials. The project will emphasize the chemistry of soluble transition metal selenides. Mixed-metal complexes of tetraselenido- tungstate(II) and of tetraselenidomolybdate(II), as well as of the higher cogeners, such as hexaselenidoditungstate(II), will be synthesized and characterized. Solution methods will be used to synthesize new transition metal selenide complex ions with metals other than tungsten or molybdenum, as well as new mixed alkyl selenolate/selenide species. Solid-state routes to new transition metal chalcogenide ions will be investigated also. Finally, the reaction chemistry of the soluble chalcogenide species will be studied, with initial emphasis on their reactions with activated acetylenes.