Organostannoxane motifs in cages and supramolecular architectures

Chandrasekhar, Vadapalli ; Baskar, Viswanathan ; Boomishankar, Ramamoorthy ; Nagendran, Selvarajan (2004) Organostannoxane motifs in cages and supramolecular architectures Phosphorus, Sulfur, and Silicon and the Related Elements, 179 (4-5). pp. 699-701. ISSN 1042-6507

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The reactions of n-butyl stannonic acid with(PhO)2P(O)H leads to the formation of a hexameric tin cage [(n-BuSn)3(PhO)3O2{HPO3}4].This reaction involves an in situ P-O bond cleavage and the generation of a [HPO3]2- ion. A direct reaction of six equivalents of n-BuSnO(OH) acid with six equivalents of C6H5OH and four equivalents of H3PO3 also leads to the formation of same cage structure. A tetranuclear organooxotin cage[(PhCH2)2Sn2O(O2P(OH)-t-Bu)4]2 has been assembled by debenzylation involving the reaction of (PhCH2)2SnCl2,(PhCH2)2SnO·H2O or (PhCH2)3SnCl with two equivalents of t-BuP(O)OH2. A half-cage intermediate [(PhCH2)2Sn2O(O2P(OH)-t-Bu)4] has been detected. New organotin cations of the type [n-Bu2Sn(H2O)4]2+[2,5-Me2-C6H3SO3]-2 and [n-Bu2Sn(H2O)3LSn(H2O)3(n-Bu)2]2+[1,5-(SO3)2-C10H6]2- have been obtained in the reactions of n-Bu2SnO or (n-Bu3Sn)3O with 2,5-dimethyl sulfonic acid and 1,5-naphthalene disulfonic acid respectively. These organotin cations form interesting supramolecular structures in the solid state as a result of O-H-···O hydrogen bonding.

Item Type:Article
Source:Copyright of this article belongs to Taylor and Francis Ltd.
Keywords:Cages; Hydrogen Bonding; Organotin Cations; Stannoxanes; Supramolecular Structures
ID Code:8995
Deposited On:29 Oct 2010 12:04
Last Modified:29 Oct 2010 12:04

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