A Spacer-Linked Molecular Diorganotin Oxide

Abstract

The synthesis and molecular structure are reported of the first example of a diorganotin oxide, {p-[R(O)SnCH2SiMe2]2C6H4}3 (3) (R = (Me3Si)2CH), in which two six-membered Sn3O3 units are linked by three −CH2Si(Me)2C6H4Si(Me)2CH2− spacers.

Molecular Tectonics with Di‐ and Trinuclear Organotin Compounds

“…Scheme illustrates the reaction sequence employed for the synthesis of tectons BB1 and BB2 , which is based on a previous report for the preparation of 1,4‐[PhCl 2 SnCH 2 Si(Me) 2 ‐C 6 H 4 ‐Si(Me 2 )CH 2 SnCl 2 Ph] …”

Organotin–Oxido Cluster‐Based Multiferrocenyl Complexes Obtained by Hydrolysis of Ferrocenyl‐Functionalized Organotin Chlorides

“…In contrast, sterically more demanding organic ligands inhibited the aggregation of tin oxido units to form large clusters during the hydrolysis. For example, precursors with (Me 3 Si) 3 C‐decorated tin atoms led to the formation of cyclic tin oxido trimers only 9a. The examples of 3 a and b given above are consistent with this finding: due to the N→Sn coordination, the organometallic R Fc group possesses a big spatial requirement, which might even hamper the formation of the common Sn 2 O 2 four‐membered ring; thus, in these cases, the presence of the inorganic hexachloridostannate complex was necessary to trigger the assembly of the [Sn 4 O 6 ] unit with three of these four rings.…”

A New System in Organooxotin Cluster Chemistry Incorporating Inorganic and Organic Spacers between Two Ladders Each Containing Five Tin Atoms

“…Several types of organooxotin cluster, such as ladder,4a O‐capped,4b cube,4c butterfly,4d drum,4e–g football cage,5 cyclic trimer,6 among others, have been prepared and their structures established by X‐ray diffraction analysis. Recently, more studies have been focused on ligand‐bridged organooxotin clusters, such as alkyl‐bridged double‐ and triple‐ladder clusters,7 an alkyl‐bridged Sn 3 O 3 cluster,8 an eighteen‐tin‐nuclear ladder cluster,9 and double O‐capped clusters 10. Of these, the alkyl‐bridged ladder clusters and their variants have been most widely reported; for example, the distance between the two ladders can be changed by using different alkyl spacers and the structures can be chemically modified while retaining the basic structural unit 7.…”