{Sn9[Si(SiMe3)3]2}2-: A Metalloid Tin Cluster Compound With a Sn9 Core of Oxidation State Zero
{Sn9[Si(SiMe3)3]2}2-: A Metalloid Tin Cluster Compound With a Sn9 Core of Oxidation State Zero
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DOI：
10.1021/ic3011647
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发表时间：
2012-08-06
影响因子：
4.6
通讯作者：
Schnepf, Andreas
中科院分区：
文献类型：
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作者：
Schrenk, Claudio;Winter, Florian;Schnepf, Andreas
亚稳卤化物SnCl的还原反应是合成锡类金属簇合物的一种有效方法。本文报道了锡原子氧化态为零的阴离子类金属簇合物[Sn-9[Si（SiMe 3）（3）]（2）]（2-）3的合成和结构表征。量子化学计算和穆斯堡尔谱学研究表明，三种不同类型的锡原子存在于集群的核心。化合物3是高反应性的，如NMR研究所示，因此是一个很好的起始材料，用于进一步正在进行的研究这种部分屏蔽的类金属簇合物的反应性。
The disproportionation reaction of the subvalent metastable halide SnCl proved to be a powerful synthetic method for the synthesis of metalloid cluster compounds of tin. Now we present the synthesis and structural characterization of the anionic metalloid cluster compound [Sn-9[Si(SiMe3)(3)](2)](2-) 3 where the oxidation state of the tin atoms is zero. Quantum chemical calculations as well as Mossbauer spectroscopic investigations show that three different kinds of tin atoms are present within the cluster core. Compound 3 is highly reactive as shown by NMR investigations, thus being a good starting material for further ongoing research on the reactivity of such partly shielded metalloid cluster compounds.