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Ernesto Schulz Lang Clvis Peppe Renato A. Zan Ulrich Abram Ezequiel M. Vzquez‐Lpez Burkhard Krumm Oliver P. Ruscitti 《无机化学与普通化学杂志》2002,628(13):2815-2817
The novel mercury‐tellurium cluster [Hg8(μ‐n‐C3H7Te)12(μ2‐Br)Br3] is formed during the reaction of HgBr2 and (n‐C3H7Te)2Hg in DMSO. Its crystal structure has been elucidated showing [Hg8(μ‐n‐C3H7Te)12(μ2‐Br)]3+ units with a bromine‐centered distorted Hg8 cube. The mercury atoms are bridged by n‐C3H7Te— ligands and the resulting clusters are linked to a three‐dimensional network by bromine atoms. The close packing of the cluster is mainly determined by the flexible n‐propyl residues of the telluride building blocks. 相似文献
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Ernesto Schulz Lang Marcelo Müller Dias Sailer Santos dos Santos Ezequiel M. Vzquez‐Lpez Ulrich Abram 《无机化学与普通化学杂志》2004,630(3):462-465
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. 相似文献
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Halogeno-Bridged Heteronuclear Metal Atom Clusters of the Three Types Re2(CO)4L2(μ-X)2(μ-Y) (L = (C6H5)3P; X = Br, I; Y = GaRe(CO)4ax-L), Re2(CO)6L2(μ-X) (μ-GaX2) (X = I), and Re3(CO)9L3 (μ-X)3(μ3-Y) (X = Cl) The title compounds of the both types Re2(CO)4L(μ-X)2(μ-Y) [L = (C6H5)3P; X = Br, I; Y = GaRe(CO)4ax-L] and Re3(CO)9L3(μ-X)3 (μ3-Y) (X = Cl) were prepared by the reaction of GaX3 (X = Cl, Br, I) and Re2(CO)8(ax-L)2 in boiling mesitylene solution. The obtained substance Re2(CO)4L2(μ-I)2(μ-Y) and carbon monoxide gave the compound of the third type Re2(CO)6L2(μ-I)(μ- GaI2). The last-named single iodo-bridged dirhenium cluster could be therefore a precursor complex of the double iodo-bridged compound. The four diamagnetic substances were characterized by 31P n.m.r. spectroscopy and their molecular structures were acertained by X-ray measurements. The result of the single crystal X-ray analysis of Re2(CO)4L2(μ-Br)2 [μ-GaRe(CO)4ax-L], a bridged coordination octahedron pair with a common face, and that of the edge-bridged pair Re2(CO)6L2(μ-I)(μ-GaI2) each possessing a Re? Re bond are especially treated in the present work. 相似文献
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