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Triarylborane conjugated acacH ligands and their BF2 complexes: facile synthesis and intriguing optical properties

Kumar, George Rajendra and Thilagar, Pakkirisamy (2014) Triarylborane conjugated acacH ligands and their BF2 complexes: facile synthesis and intriguing optical properties. In: DALTON TRANSACTIONS, 43 (10). pp. 3871-3879.

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Official URL: http://dx.doi.org/10.1039/c3dt52768a

Abstract

A facile synthetic route for a new class of organoborane compounds (Mes)(2)B-arene-acacH and (Mes)(2)Barene-acacBF2 (Mes = mesityl and arene = C6H4 or C6Me4) is reported. The new dyads exhibit intriguing photophysical properties. A small structural change in spacer connecting the two chromophores leads to fine tuning of photophysical properties. The dyad containing 2,3,5,6-tetramethyl phenyl spacer acts as a selective ``turn-on'' chemodosimetric sensor for cyanide ion. Steric crowding around the boron centre significantly alters anion binding events. From NMR titration studies it is established that fluoride and cyanide follow different binding mechanisms which lead to intriguing optical properties in the reported probes.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to the ROYAL SOC CHEMISTRY, ENGLAND
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Depositing User: Id for Latest eprints
Date Deposited: 03 Apr 2014 07:46
Last Modified: 03 Apr 2014 07:46
URI: http://eprints.iisc.ac.in/id/eprint/48767

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