A new rhodamine based colorimetric 'off-on' fluorescence sensor selective for Pd2+ along with the first bound X-ray crystal structure

Shyamaprosad Goswami, Debabrata Sen, Nirmal Kumar Das, Hoong-Kun Fun, Ching Kheng Quah
Chemical Communications: Chem Comm 2011 August 28, 47 (32): 9101-3
A new fluorescence rhodamine derivative bearing an 8-aminoquinoline moiety has been designed and synthesized for selective sensing of Pd(2+) in the presence of other competing metal ions in aqueous media. Pd(2+) induced spirolactam ring opening of rhodamine is confirmed for the first time by the X-ray crystal structure of the bound Pd(2+)-complex.

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