Main Group and Intermetallic Coordination Chemistry

南卡罗来纳大学科伦比亚分校化学系Daniel L.Reger博士得到化学部无机、生物无机和有机金属化学项目的支持，该项目旨在研究S-和更重的p-嵌段金属的聚吡唑基硼酸盐和聚吡唑基甲烷络合物。这些配体的灵活性和大小导致了异常稳定的单体络合物，这些物种的络合物将在固体和溶液状态下进行研究。一个需要解决的基本问题涉及P-嵌段衍生物中孤对的立体化学活性或不活性。这些配合物还将被用作合成含有主族元素到过渡金属键的金属间化合物的起始材料。通过偶联衍生的聚吡唑基甲烷单元衍生的低聚物种将被制备并用于形成扩展的金属络合物阵列。这是一项范围广泛的研究，旨在开发新的方法来制备含有铅、锡、铟、铊和镉等过渡后金属的化合物。然后，这些物种将被用来形成化合物，其中过渡后的金属直接连接到过渡金属。这些金属有许多用途，本研究中设计的物种可以开发成各种电子材料的前体，将设计新的催化剂，并将获得重金属的基本光谱信息。

Dr. Daniel L. Reger, Chemistry Department, University of South Carolina at Colulmbia, is supported by the Inorganic, Bioinorganic, and Organometallic Chemistry Program of the Chemistry Division for an investigation of poly(pyrazolyl)borate and poly(pyrazolyl)methane complexes of s- and heavier p-block metals. The flexibility and large size of these ligands leads to unusually stable monomeric complexes and complexes of these species will be investigated in the solid and solution state. One basic question to be addressed involves the stereochemical activity or inactivity of lone pairs in the p-block derivatives. The complexes will also be used as starting materials for the synthesis of intermetallic compounds that contain main group element to transition metal bonds. Oligomeric species derived by coupling derivatized poly(pyrazolyl)methane units will be prepared and used to form extended arrays of metal complexes. This is a wide ranging study that seeks to develop new ways of preparing compounds containing 'post-transition' metals such lead, tin, indium, thallium, and cadmium. These species will then be used to form compounds in which the post-transition metal is directly joined to a transition metal. These metals have many applications and the species designed in this research may be developed into precursors for various electronic materials, new catalysts will be designed, and fundamental spectroscopic information will be obtained for heavy metals.