STRUCTURAL CHARACTERIZATION OF METALLACROWN COMPLEXES

我们需要束流时间来表征金属的结构 在液体和液晶相中称为金属冠的簇。 环中含有Mn（III）、Fe（III）、V（V）、Cu（II）和Ga（III）的配合物 已经使用十种不同的异羟肟酸制备了位置 配体。 各种各样的金属，包括Na（I）、Li（I）、K（I）， Mn（II）、Mg（II）、Fe（III）、Ni（II）和Cu（II）已被螯合到 金属冠腔 通过以下方式获得增加的络合物稳定性： 桥连阴离子如乙酸根、硫酸根、氯离子、溴离子或碘离子 在封装金属和环形金属之间。 我们的具体实验 将在有机和水溶液中建立金属冠化合物 溶液和介晶相，这与金属离子有关 生物系统中的螯合过程。

We request beam time to characterize the structure of metal clusters called metallacrowns in liquid and liquid crystalline phases. Complexes with Mn(III), Fe(III), V(V), Cu(II) and Ga(III) in the ring positions have been prepared using ten different hydroxamic acid ligands. A wide variety of metals including Na(I), Li(I), K(I), Mn(II), Mg(II), Fe(III), Ni(II) and Cu(II) have been sequestered into the metallacrown cavity. Added complex stability is obtained by bridging anions such as acetate, sulfate, chloride, bromide or iodide between the encapsulated and ring metals. Our specific experiments will establish metallacrown composition in organic and aqueous solution and also in mesogenic phases, which are relevant to metal ion sequestering processes in biological systems.