Organic–Inorganic Sn₁₂ and Organic Sn₆ Oxide–Hydroxide Clusters

Abstract

Organik trifft Anorganik: Bei der Hydrolyse einer Aryltrialkinylzinnverbindung entsteht ein organisch‐anorganischer Zinnoxidhydroxid‐Cluster, in dem ein anorganischer Zinnoxidkern von acht Arylzinnfragmenten umgeben ist (links im Bild; Sn grün und blau (Clusterkern), O rot, C grau, H rosa). Leicht modifizierte Reaktionsbedingungen liefern einen hexameren Arylzinnoxidhydroxid‐Käfig, der als doppelt verdrilltes Möbius‐Band beschrieben werden kann (rechts im Bild).

{[(PhCH2Sn)12(μ3-O)14(μ-OH)6](F3CSO3)2}: A New Dodecanuclear Organostannoxane

“…Since then, a greater variety of shapes has already been identified including prismane, butterfly, ladder, O-and S-capped cluster, drum, cube, double cube, football cage, crown, extended cage, and coordination polymer types [12]. Dodecanuclear organostannoxanes, based on Sn-O-Sn frameworks, have several times been mentioned in the literature and appear to adopt different types of conformations which are described by the authors as triple-ladder [13], cuboctahedron [14], flattened cluster [15], ball [16], extended cage [17], and football cage types [18]. This last architecture pattern is the most frequently depicted one and can be compared with the [YM 12 O 40 ] n− Keggin structures reported for transition metal polyoxometallates (M = Mo or W; Y is a tetrahedral template) [19].…”

“…In general, organotin triflates are obtained by reaction of organotin oxides with F 3 CSO 3 H (TfOH) [2], or alternatively from organotin chlorides (R (4−x) SnCl x ) with AgO 3 SCF 3 [3]. The resulting structures highlight that F 3 CSO 3 − can be ionic or non-ionic, with different coordination modes to tin atoms which can be defined as mono-, bi-and tri- 6 (µ 4 -O)(µ-OH) 11 (H 2 O) 4 ](OTf) 5 ; c) {Sn(µ-OH) 6 [(C 7 H 7 Sn) 10 (µ 4 -O) 2 (µ-OH) 16 (H 2 O) 2 (OTf) 2 ]}(OTf) 6 [9].…”