| 2-(2-Pyridyl) benzimidazole based Co(ii) complex as an efficient fluorescent probe for trace level determination of aspartic and glutamic acid in aqueous solution: A displacement approach. | |
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MedLine Citation:
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PMID: 21870003 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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A weakly fluorescent cobalt(ii) complex is synthesized using 2-(2-pyridyl)-benzimidazole (PBI) as a chelating fluorescent ligand and characterized by single crystal X-ray structure. This complex serves as an efficient fluorescent probe for trace level determination of aspartic acid (AspA) and glutamic acid (GluA) in aqueous solution. Rest of the naturally occurring amino acids did not interfere. Both aspartic acid and glutamic acid replaces PBI from the coordination sphere of Co(ii)-PBI complex resulting appearance of strong fluorescence signal for the released free PBI. The signal response is very fast and the interaction of both the AspA and GluA with the Co(ii) is strong enough as evident from their displacement equilibrium constant values, viz. 4357.8 M(-1) and 8333.33 M(-1) respectively. |
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Authors:
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Sudipta Das; Subarna Guha; Arnab Banerjee; Sisir Lohar; Animesh Sahana; Debasis Das |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-8-25 |
Journal Detail:
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Title: Organic & biomolecular chemistry Volume: - ISSN: 1477-0539 ISO Abbreviation: - Publication Date: 2011 Aug |
Date Detail:
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Created Date: 2011-8-26 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101154995 Medline TA: Org Biomol Chem Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Chemistry, The University of Burdwan, Burdwan, West Bengal, India. ddas100in@yahoo.com. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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