Polystyrene‐supported thiosemicarbazone–transition metal complexes: synthesis and application as heterogeneous catalysts

Chettiar, K Sivadasan; Sreekumar, K.

doi:10.1002/(sici)1097-0126(199906)48:6<455::aid-pi166>3.3.co;2-6

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2011

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“…2A 1g transition, and the other two are probably due to charge transfer transitions. From the spectroscopic data, a distorted tetrahedral geometry may be assigned to the [PS-Cu-TSC] catalyst [31].…”

Section: Resultsmentioning

confidence: 99%

Synthesis, characterization, and catalytic activity of a polymer-supported copper(II) complex with a thiosemicarbazone ligand

Islam

Hossain

Mondal

et al. 2011

Transition Met Chem

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A thiosemicarbazone Cu(II) complex anchored to a polystyrene framework has been synthesized and characterized by analytical and spectroscopic techniques. The complex was found to be a highly active catalyst for the oxidation of various organic substrates including alkenes and alcohols using H 2 O 2 as oxidant. The reaction conditions were optimized with respect to temperature, solvent, oxidant, catalyst amount, and substrate to peroxide ratio. The heterogeneous catalyst was reused five times without significant loss of activity. A comparison between the catalytic activities of this polymer-supported Cu(II) complex and its homogeneous analogue was carried out.

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Section: Resultsmentioning

confidence: 99%