Tri-metallic deltahedral Zintl ions: experimental and theoretical studies of the novel dimer [(Sn6Ge2Bi)2]4-.
نویسندگان
چکیده
We report the synthesis, characterization, and computational rationalization of the first trimetallic deltahedral Zintl ions. The novel nine-atom clusters were structurally characterized as dimers of [(Sn(6)Ge(2)Bi)(2)](4-) with Ge-Ge intercluster bonds. They are synthesized either by reacting bimetallic clusters (Sn(9-x)Ge(x))(4-) with BiPh(3) or by direct extraction from precursors with nominal composition "K(4)Ge(4)Sn(4)Bi".
منابع مشابه
Trimetallic deltahedral Zintl ions [Sn(9-m-n)Ge(m)Bi(n)]((4-n)-) for n = 1-4 and m = 0-(9 - n): a theoretical survey with prediction and rationalization of the possible structures.
The recent discovery of trimetallic deltahedral Zintl ions based on Sn, Ge, and Bi revealed the possibility to obtain such clusters with a variety of different Sn/Ge/Bi ratios. Although only the dimer [(BiSn(6)Ge(2))-(Ge(2)Sn(6)Bi)](4-) was structurally characterized, a number of other nine-atom clusters with various stoichiometries were detected by electrospray mass spectrometry. The lack of s...
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Despite their more than 100-year history, Zintl ions have remained a remarkably little understood area of inorganic chemistry. These are negatively charged polyatomic clusters of main-group metallic and/or semimetallic elements that can be crystallized from solutions with alkali metal countercations (often sequestered in various crypts or crown ethers). Although they have received more attentio...
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ورودعنوان ژورنال:
- Chemical communications
دوره 48 29 شماره
صفحات -
تاریخ انتشار 2012