| Palladium(ii)-selenated Schiff base complex catalyzed Suzuki-Miyaura coupling: Dependence of efficiency on alkyl chain length of ligand. | |
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MedLine Citation:
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PMID: 22101649 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The new selenated Schiff bases L1-L4 which differ in the chain lengths (longest in L4) of non-coordinating substituents and their square planar complexes [Pd(L-H)Cl] (1-4) [L = L1-L4, behaving as (Se, N, O(-)) ligand] have been synthesized and characterized by multinuclei NMR. The molecular structure of 1 has been elucidated by X-ray diffraction on its single crystal [Pd-Se = 2.3965(9) Å]. All the complexes 1-4 (0.5 mol%) have been found suitable to catalyze Suzuki-Miyaura coupling reactions under mild conditions. The activity of 4 which has ligand L4 has been found highest. The formation of palladium(0) nano-particles (NPs) stablilized by organoselenium species appears to be the catalytic pathway. The length of the pendent alkyl chain present in the complex molecule unprecedentedly controls the dispersion and composition of these particles and consequently the catalytic activity. |
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Authors:
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Gyandshwar Kumar Rao; Arun Kumar; Bharat Kumar; Dinesh Kumar; Ajai Kumar Singh |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-11-18 |
Journal Detail:
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Title: Dalton transactions (Cambridge, England : 2003) Volume: - ISSN: 1477-9234 ISO Abbreviation: - Publication Date: 2011 Nov |
Date Detail:
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Created Date: 2011-11-21 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101176026 Medline TA: Dalton Trans Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Chemistry, Indian Institute of Technology Delhi, New Delhi, 110016, India. aksingh@chemistry.iitd.ac.in ajai57@hotmail.com. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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