Chandrasekhar, Vadapalli ; Baskar, Viswanathan ; Gopal, Kandasamy ; Vittal, Jagadese J. (2005) Organooxotin cages, {[(n-BuSn)3(μ 3-O)(OC6H4-4-X)3]2[HPO3]4}, X = H, Cl, Br, and I, in double O-capped structures: Halogen-bonding-mediated supramolecular formation Organometallics, 24 (21). pp. 4926-4932. ISSN 0276-7333
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Official URL: http://pubs.acs.org/doi/abs/10.1021/om050269x
Related URL: http://dx.doi.org/10.1021/om050269x
Abstract
The reaction of n-BuSn(O)(OH) with H3PO3 and HOC6H4-4-X (X = H, Cl, Br, and I) afforded the hexanuclear organooxotin cages {[(n-BuSn)3(μ 3-O)(OC6H4-4-X)3]2[HPO3]4}, where X = H (1), Cl (2), Br (3), and I (4), in moderate yields. These cages possess double O-capped structures. The oxotin cages 1-4 contain two tritin motifs that are joined by four tripodal [HPO3]2- ligands. The three tin atoms in each tritin subunit are held together by a μ 3-capping oxygen atom. In addition three phenolate oxygen atoms act as μ 2-bridging ligands between two tin atoms. The molecular structures of 1-4 are intimately related to other organooxotin cages such as the O-capped cluster, the drum, and the football cage. The crystal structures of 2-4 reveal intermolecular halogen-bonding-mediated [X---O (X = Cl, Br), I---I, and I---π ] supramolecular assemblies.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 8889 |
| Deposited On: | 28 Oct 2010 10:39 |
| Last Modified: | 28 Oct 2010 10:39 |
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