Distanna-closo-dodecaborate.
Distanna-closo-dodecaborate.
复制标题
Distanna-近十二硼酸盐。
DOI：
10.1002/anie.200503197
复制
发表时间：
2006
影响因子：
--
通讯作者：
L. Wesemann
中科院分区：
文献类型：
--
作者：
Dominik Joosten;I. Pantenburg;L. Wesemann
Dicarba-closo-dodecorane（[C2 B10 H12]）是迄今为止最重要和研究最多的杂硼烷。这个近二十面体星系团的化学研究已经活跃了四十多年。[1]15年前，邻碳硼烷的高级同系物，二硅合十二硼烷（[Me 2Si 2B 10 H10]），偶然地从癸硼烷和双（二甲氨基）甲基硅烷（（Me 2N）2SiHMe）的混合物中分离出来。[2]锡原子的纳入到硼烷或碳硼烷的骨架是可能的各种集群。通过去质子化巢簇与卤化锡（ii）之间的典型盐解反应制备了以下以裸锡原子作为簇顶点的杂硼烷：闭合-[1-Sn-2，3-（SiMe 3）2-2，3-C2 B4 H4]，[3]闭合-[1-Sn-2，4-（SiMe 3）2-2，4-C2 B4 H4]，[3]闭合-[1，2，3-SnC 2B 8H 10]，[4]闭合-[1，2，3-SnC 2B 9 H11]，[5]闭合-[4，1，6-SnC2B10H12]。[6]然而，1，2-二锡-闭十二硼酸酯，一个更高的同系物的o-碳硼烷和o-硅硼烷，是未知的，在我们的调查之前。首先，一个锡顶点被纳入到十硼烷簇骨架通过应用由Gaines等人发表的方法的修改; [7]因此，由癸硼烷、质子海绵（1，8-双（二甲氨基）萘，C14 H18 N2）和氯化锡（II）的混合物合成锡-巢基-十一硼酸酯[C14 H19 N2][7-Cl-7-SnB 10 H12]（1）（方案1）。
Dicarba-closo-dodecaborane ([C2B10H12]) is by far the most prominent and best investigated heteroborane. The chemistry of this nearly icosahedral cluster has been a field of active research for more than forty years.[1] Fifteen years ago, the higher homologue of the o-carbaborane, disila-closo-dodecaborane ([Me2Si2B10H10]), was fortuitously isolated from a mixture of decaborane and bis (dimethylamino) methylsilane ((Me2N) 2SiHMe).[2] The incorporation of tin atoms into the skeleton of boranes or carbaboranes is possible for a variety of clusters. The following heteroboranes with naked tin atoms as cluster vertices have been prepared through typical saltelimination reactions between deprotonated nido clusters and tin (ii) halides: closo-[1-Sn-2, 3-(SiMe3) 2-2, 3-C2B4H4],[3] closo-[1-Sn-2, 4-(SiMe3) 2-2, 4-C2B4H4],[3] closo-[1, 2, 3-SnC2B8H10],[4] closo-[1, 2, 3-SnC2B9H11],[5] closo-[4, 1, 6-SnC2B10H12].[6] However, 1, 2-distanna-closo-dodecaborate, a higher homologue of o-carbaborane and o-silaborane, was unknown prior to our investigation.Herein, we present the first synthesis of a distanna-closododecaborate with adjacent tin atoms. First, one tin vertex was incorporated into the decaborane cluster skeleton by applying an adaptation of the method published by Gaines et al.;[7] accordingly, stanna-nido-undecaborate [C14H19N2][7-Cl-7-SnB10H12](1) was synthesized from a mixture of decaborane, proton sponge (1, 8-bis (dimethylamino) naphthalene, C14H18N2), and tin (ii) chloride (Scheme 1).