Organostannoxanes and cyclophosphazenes as scaffolds for multi-ferrocene assemblies

Chandrasekhar, Vadapalli ; Nagendran, Selvarajan ; Andavan, Gurusamy Thangavelu Senthil ; Bansal, Sachin ; Krishnan, Venkatasubbaiah (2001) Organostannoxanes and cyclophosphazenes as scaffolds for multi-ferrocene assemblies Phosphorus, Sulfur, and Silicon and the Related Elements, 168 (1). pp. 227-231. ISSN 1042-6507

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Related URL: http://dx.doi.org/10.1080/10426500108546558

Abstract

The reactions of n-butylstannonic acid and di n-butyltinoxide with ferrocene monocarboxylic acid have been studied. In the former reaction a hexameric compound, [n-BuSn(O)OC(O)C5H4FeC5H5]6 has been isolated in a quantitative yield. In the latter reaction a tetrameric compound [n-Bu2SnO2C(C5H4FeC5H52O]2 has been isolated. In contrast to the drum like structure of the former compound, the latter has a ladder like arrangement. Both [n-BuSn(O)OC(O)C5H4FeC5H5]6 and [n-Bu2SnO2C(C5H4FeC5H5)2O]2 are electro-chemically robust and show a single oxidation peak in the cyclic voltammetric experiment corresponding to the simultaneous oxidation of six and four ferrocene substituents respectively. The hydrazine substituted cyclophosphazenes, N3P3[N(Me)NH2]6, gem-N3P3Ph2[N(Me)NH2]4, and gem-N3P3(O2C12H8)2[N(Me)NH2]2, are readily condensed with ferrocene carboxaldehyde, C5H5FeC5H4CHO, to afford the corresponding cyclophosphazenes linked to the ferrocenyl moiety through the hydrazone linkage, N3P3[N(Me)N=CHC5H4FeC5H5]6, gem-N3P3Ph2[N(Me)N=CHC5H4FeC5H5]4, and gem-N3P3(O2C12H8)2]N(Me)N=CHC5H4FeC5H5]2.

Item Type:Article
Source:Copyright of this article belongs to Taylor and Francis Ltd.
Keywords:Stannoxanes; Cyclophosphazenes; Ferrocene; Cyclic Voltammetry; Multi-metallocene; Ladder; Drum
ID Code:8989
Deposited On:29 Oct 2010 12:04
Last Modified:29 Oct 2010 12:04

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