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[Sn8]6−-Bridged Mixed-Valence ZnI/ZnII in {[K2ZnSn8(ZnMes)]2}4− Inverse Sandwich-Type Cluster Supported by a ZnI−ZnI Bond
dc.contributor.author | Xu, Honglei | |
dc.contributor.author | Tkachenko, Nikolay V. | |
dc.contributor.author | Muñoz-Castro, Alvaro | |
dc.contributor.author | Boldyrev, Alexander I. | |
dc.contributor.author | Sun, Zhongming | |
dc.date.accessioned | 2021-04-06T21:31:01Z | |
dc.date.available | 2021-04-06T21:31:01Z | |
dc.date.issued | 2021 | |
dc.identifier | 10.1002/anie.202102578 | |
dc.identifier.issn | 14337851 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12728/8780 | |
dc.description.abstract | Since [Sn8]6− was discovered from the solid-state phase in 2000, its solution chemistry has been elusive due to the high charges and chemical activity. Herein, we report the synthesis and characterization of an inverse sandwich-type cluster dimer {[K2ZnSn8(ZnMes)]2}4− (1 a), in which the highly charged [Sn8]6− is captured by mixed-valence ZnI/ZnII to form the dimer {closo-[Zn2Sn8]}2 moieties bridged by a Zn-Zn bond. Such Zn-Sn cluster not only exhibits a novel example of mixed-valence ZnI/ZnII for stabilizing highly active anion species, but also indicates the [Sn8]6− cluster can act as a novel bridging ligand, like arene, with a η4:η4-fashion. Theoretical calculations indicate that a significant delocalization of electrons over Zn atoms plays a vital role in the stabilization of the [Sn8]6− species. The AdNDP and magnetic response analyses clearly showed the presence of local σ-aromaticity in three cluster fragments: two ZnSn4 caps and Sn8 square antiprism. | es_ES |
dc.language.iso | en | es_ES |
dc.publisher | John Wiley and Sons Inc | es_ES |
dc.subject | inverse sándwich | es_ES |
dc.subject | local σ-aromaticity | es_ES |
dc.subject | mixed valence ZnI/ZnII | es_ES |
dc.subject | Zn-Zn bond | es_ES |
dc.subject | [Sn8]6− | es_ES |
dc.title | [Sn8]6−-Bridged Mixed-Valence ZnI/ZnII in {[K2ZnSn8(ZnMes)]2}4− Inverse Sandwich-Type Cluster Supported by a ZnI−ZnI Bond | es_ES |
dc.type | Article | es_ES |