2026-04-17T07:40:41Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1526772025-12-04T21:45:34Zcom_2072_1057col_2072_478917col_2072_478933

00925njm 22002777a 4500 dc Bartocci, Silvia author Sabaté, Ferran author Mihan, Francesco Yafteh author Bosque Pueyo, Ramón author Rodríguez Raurell, Laura author Dalla Cort, Antonella author 2020-03-13T08:44:32Z 2020-03-13T08:44:32Z 2017-01-01 2020-03-13T08:44:33Z The synthesis of two novel Uranyl-salophen complexes, 1 and 2, decorated with ethynyl substituents, and the study in chloroform of their binding properties toward three different tetrabutylammonium halide salts, i.e. fluoride, chloride, bromide, are here reported. Such derivatives proved to be efficient halide receptors. The presence of two ethynyl groups in the para position, with respect to the phenoxide oxygens, seemed to be accountable for the moderate emission shown by complex 1. Surprisingly, instead, complex 2 does not show such property. The possibility of 1 to form dimers in non-coordinating solvents provides an explanation for such difference, since emission can be induced by the aggregation. This finding provides an unprecedented example of aggregation induced emission (AIE) for metal salophen derivatives. Moreover DFT calculations provide theoretical insight to the formation of host-guest complexes. Their stabilities were calculated in vacuum and in chloroform and the results are perfectly in agreement with the experimental data.[GRAPHICS]. Halurs Urani Halides Uranium Novel uranyl(VI) complexes incorporating ethynyl groups as potential halide chemosensors: an experimental and computational approach