Click-generated triazole based ferrocene-carbohydrate bioconjugates: a highly selective multisignalling probe for Cu(II) ions

Thakur, Arunabha ; Sardar, Sinjinee ; Ghosh, Sundargopal (2012) Click-generated triazole based ferrocene-carbohydrate bioconjugates: a highly selective multisignalling probe for Cu(II) ions Journal of Chemical Sciences, 124 (6). pp. 1255-1260. ISSN 0974-3626

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Official URL: http://www.ias.ac.in/describe/article/jcsc/124/06/...

Related URL: http://dx.doi.org/10.1007/s12039-012-0321-6

Abstract

Two Cu2+-specific colorimetric sensors, based on ferrocene-carbohydrate bioconjugates, 2, C46H56O20N6Fe and 3, C28H33O10N3Fe were designed and synthesized in good yields. Both the compounds, 2 and 3, behave as very selective and sensitive chromogenic and electrochemical chemosensor for Cu2+ ion in aqueous environment (CH3CN/H2O (2:8, v/v). The analytical detection limit (ADL) for receptor 2 was 7.5 × 10−7 M. The considerable changes in their absorption spectra of 2 and 3 are accompanied by the appearance of a new low energy (LE) peak at 630 nm (2: ε = 1600 M−1 cm−1 and 3: 822 M−1 cm−1). This is further accompanied by a strong colour change from yellow to dark green that allows the prospective for ‘naked eye’ detection of Cu2+ ion.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Organometallic Bioconjugates; Cu(II) Cation Sensor; Chromogenic and Electrochemical Chemosensor
ID Code:110983
Deposited On:31 Jan 2018 12:31
Last Modified:31 Jan 2018 12:31

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