Inorganic chemistry

Zinc-specific fluorescent response of tris (isoquinolylmethyl) amines (isoTQAs)

Y Mikata, K Kawata, S Iwatsuki, H Konno

Index: Mikata, Yuji; Kawata, Keiko; Iwatsuki, Satoshi; Konno, Hideo Inorganic Chemistry, 2012 , vol. 51, # 3 p. 1859 - 1865

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Citation Number: 19

Abstract

Isoquinoline-based tetradentate ligands with C 3-symmetry, tris (1-or 3-isoquinolylmethyl) amine (1-or 3-isoTQA), have been prepared and their zinc-induced fluorescence enhancement was investigated. Upon excitation at 324 nm, 1-isoTQA shows very weak fluorescence (ϕ=∼ 0.003) in DMF/H2O (1/1) solution. In the presence of zinc ion, 1-isoTQA exhibits fluorescence increase (ϕ= 0.041) at 359 and 470 nm. This fluorescence ...