Synthesis and Properties of Crystalline Alkalides and Electrides

含有碱金属阴离子(碱化物)或俘获电子(电子)以及与环状或双环多氧或多氮杂分子络合的阳离子的结晶盐将被合成和表征。重点将放在寻找热稳定的碱化物和电子化合物上。将通过光学光谱、碱金属核磁共振光谱和磁化率进行物种鉴定。将进行X射线粉末和单晶衍射的结构研究，以便将结构和性能联系起来。将对粉末进行电导率、磁化率、EPR和碱金属核磁共振研究，并在可行的情况下对单晶进行研究。将探索利用碱和电子在二甲醚和四氢呋喃等非质子溶剂中的溶液将盐还原为元素金属。

Crystalline salts that contain alkali metal anions (alkalides) or trapped electrons (electrides) and cations complexed by cyclic or bicyclic poly-oxa or poly-aza molecules will be synthesized and characterized. Emphasis will be placed on the search for thermally stable alkalides and electrides. Species identification will be made by optical spectroscopy alkali metal NMR spectroscopy and magnetic susceptibilities. Structural studies by x-ray powder and single crystal diffraction will be made in order to correlate structure and properties. Conductivities, susceptibilities, EPR, and alkali metal NMR studies will be made on powders and, where feasible, on single crystals. The utilization of solutions of alkalides and electrides in aprotic solvents such as dimethyl ether and THF to carry out reductions of salts to elemental metals will be explored.