Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2013-08-14

Journal: TETRAHEDRON LETTERS

Included Journals: Scopus、SCIE

Volume: 54

Issue: 33

Page Number: 4357-4361

ISSN: 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.