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Updated: May 31, 2025

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
A Potent Bis-Heteroleptic Ruthenium(II) Complex-Based Chalcogen Bonding Receptor for Selective Sensing of Phosphates
Iti Ghosh1, Abu S M Islam1, Sourav Pramanik1
1School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India.
Abstract:
The incorporation of a selenoimidazolium-based chalcogen bond (ChB) donor into a bis-heteroleptic Ru(II) complex (Ru-Se) has been designed for the first time to explore its anion-sensing properties and understand its selectivity to specific classes of anions. Photophysical studies demonstrate the receptor's selectivity toward phosphates, while 1H NMR displays its ability to recognize both I- and H2PO4- among the different halides and oxoanions through ChB interaction in CH3CN and dimethyl sulfoxide-d6 solvents, respectively. Additionally, microscopic studies such as DLS and TEM reveal that the selective turn-on sensing of H2PO4- and HP2O73- compared to I- is driven by supramolecular aggregation behavior. Hence, the successful fabrication of a selenium ChB-based Ru(II) complex makes it a promising candidate for anion monitoring in supramolecular chemistry.
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