Synthesis and Structure of the Clusters [Hg2(μ—SePh)2(SePh)2(PPh3)2] and [Hg3Br3(μ—SePh)3] · 2 DMSO |
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| Authors: | Ernesto Schulz Lang Marcelo Müller Dias Sailer Santos dos Santos Ezequiel M Vzquez‐Lpez Ulrich Abram |
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| Institution: | Ernesto Schulz Lang,Marcelo Müller Dias,Sailer Santos dos Santos,Ezequiel M. Vázquez‐López,Ulrich Abram |
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| Abstract: | The compounds Hg2(μ—SePh)2(SePh)2(PPh3)2] ( I ) and Hg3Br3(μ—SePh)3] · 2 DMSO ( II ) are formed by reactions of Hg(SePh)2] with PPh3 in THF( I ) or with HgBr2 in DMSO ( II ) at room temperature. X—ray crystallography reveals that the cluster I consists of a distorted square built by each two Hg and Se atoms. The Hg atoms have almost tetrahedral co‐ordination environments formed by selenium atoms of two (μ‐—SePh) ligands and Se and P atoms of terminal —SePh and PPh3 ligands. The compound II is a six‐membered ring with alternating Hg and Se atoms in the chair conformation. Two DMSO molecules occupy positions below and above the Hg3Se3] ring with the oxygen atoms directed to the centre of the ring. |
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| Keywords: | Selenium Organoselenium compounds Secondary bonds Crystal structure |
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