Preparation, Structural Characterization, and Photochemical Reactions of Silyl- and Germylborates
作者:Masato Nanjo、Kazuhiko Matsudo、Mari Kurihara、Sayaka Nakamura、Yoshio Sakaguchi、Hisaharu Hayashi、Kunio Mochida
DOI:10.1021/om050733y
日期:2006.2.1
(Li[PhnMe3-nSiBPh3], n = 1−3) and germylborates (Li[PhnMe3-nGeBPh3], n = 1−3; M[Et3GeBPh3], M = Li, Na, K) were prepared by the reaction of the corresponding silyl- and germylalkali metals with triphenylborane in a hexane/benzene mixed solvent. The silyl- and germylborates were fully identified by 1H, 13C, 11B, and 7Li NMR spectroscopic methods. The solid-state structure of germylborates Li[Ph3GeBPh3] and
甲硅烷基硼酸酯(Li [Ph n Me 3 - n SiBPh 3 ],n = 1-3)和种硼酸酯(Li [Ph n Me 3 - n GeBPh 3 ],n = 1-3; M [Et 3 GeBPh 3 ],M通过在硅烷/苯混合溶剂中使相应的甲硅烷基和庚烷基碱金属与三苯基硼烷反应制得(Li,Na,K)。通过1 H,13 C,11 B和7 Li NMR光谱法完全鉴定了甲硅烷基硼酸和硅烷基硼酸酯。杀菌硼酸锂的固态结构[Ph 3通过X射线衍射分析确定了GeBPh 3 ]和M [Et 3 GeBPh 3 ](M = Li和Na)。在固态和烃溶液中观察到M [Et 3 GeBPh 3 ]的聚合物结构。碱金属原子位于三苯基硼烷的苯环的中心附近,并通过Li + -π相互作用与相邻的硼酸盐分子相互作用。通过加入MeOH破坏聚合物结构。但是,M [Et 3 GeBPh 3通过三个MeOH分子配位以形成二聚