Die Kristallstruktur der Hexaquomagnesiumhexahalogeno‐dimercurate [Mg(OH₂)₆][Hg₂X₆] (X = Br, I)

Abstract

Durch Kristallisation aus wäßrigen Lösungen von MgX2 und HgX2 (X = Br, I) wurden Hexahalogenodimercurate [Mg(OH2)6][Hg2X6] erhalten. Die Kristallstruktur der monoklinen Verbindungen wird aus zweikernigen Hg2X6‐Anionen und oktaedrischen Mg(OH2)6‐Kationen aufgebaut.

Structure-Directing Influence of Halide in Mercury Thiolate Clusters

“…Such a variation is commonly found for terminal and bridging Hg−Br distances of thiolate-bridged compounds of Hg(II) . The Hg−Br−Hg bridge is symmetrical (3.073(11) Å), which is in contrast to the fact that unsymmetrical Hg−Br−Hg bridges are more frequently observed. ,− The weak Hg−S br (between units) and normal Hg−Br br distances suggest that Br plays a more important role than S in holding the three different units together.…”

“…48 The Hg-Br-Hg bridge is symmetrical (3.073(11) Å), which is in contrast to the fact that unsymmetrical Hg-Br-Hg bridges are more frequently observed. 13, [49][50][51][52] The weak Hg-S br (between units) and normal Hg-Br br distances suggest that Br plays a more important role than S in holding the three different units together.…”

Structure of calcium dizinc hexabromide hexahydrate Ca(H2O)6Zn2Br6

“…Brought to you by | New York University Bobst Library Technical Service Authenticated Download Date | 6/29/15 10:44 PM (a) Duhlev, Faggiani and Brown (1987); (b) Duhlev, Brown and Faggiani (1988); (c) this paper; (d) Brodersen, Pezzei and Thiele (1983 The region between the two horizontal broken lines is the same in both structures, the bonding across the broken lines is different.…”

“…The structure of two more compounds of the same formula type, [Mg(H 2 0) 6 ] [Hg 2 Br 6 ] and [Mg(H 2 0) 6 ] [Hg 2 I 6 ], have been reported by Brodersen, Pezzei and Thiele (1983). They contain the same type of complex ions packed in a NaCl arrangement with similar lattice parameters (Table 3), as would be expected for a radius ratio of 0.7, but the structure is distorted by interactions between the large complex anionic dimers.…”

Die Kristallstruktur von 2CaCl2 · 11HgCl2 · 16H2O, eines kubischen, quecksilberreichen Chloromercurats mit ikosaedrischen Hg6Cl13‐ und Hg5Cl13‐Baugruppen

“…. 1 139 (12) .1808 (15) .4817 ( 15) .5OOo .058 ( .3333 .07 1 (7) 0 2 1 .361 (5) .167 (5) .258 (5) .3333 .136 (8) Hg3…”