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Indexed by:期刊论文

Date of Publication:2013-08-14

Journal:TETRAHEDRON LETTERS

Included Journals:SCIE、Scopus

Volume:54

Issue:33

Page Number:4357-4361

ISSN No.:0040-4039

Key Words:Optical sensing; Palladium ion; Rhodamine hydrazone; Selectivity; Stoichiometry

Abstract:A series of rhodamine spiro-leuco compounds have been developed as fluorescence-enhanced sensors for optical sensing of palladium ion (Pd2+). The initial rhodamine hydrazone derivatives, RPd1-a, RPd1-b, and RPd1-c, display a good coordination to Pd2+ inducing the spirolactam-open reaction with a significant fluorescence enhancement and color generation. Different stoichiometry results, 1:2 in EtOH/H2O and 1:1 in MeOH/DCM were observed for Pd2+/RPd1-c complexation. (c) 2013 Elsevier Ltd. All rights reserved.