2026-05-07T15:31:44Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/52372022-12-21T11:47:43Zcom_10259_4363com_10259_5086com_10259_2604col_10259_4364

Luminescent complexes of iridium(iii) with aliphatic amines and detection of biogenic amines Cuevas Vicario, José Vicente García Calvo, Víctor García Calvo, José Fernández Espinosa, Iván Carbayo Martín, Mª Aránzazu Rojo Cámara, Mª Josefa Rodríguez Rodríguez, Mª Teresa García Herbosa, Gabriel Torroba Pérez, Tomás Biogenic amines Iridium Platinum group complexes Quantum chemistry Sensors The straightforward reaction of [Ir2(ppy)4(µ-Cl)2] with an excess of aliphatic amines yields luminescent iridium complexes of general formula [IrCl(ppy)2(amine)] [amine = n-octylamine (1), t-butylamine (2), piperidine (3)]. The higher sterical hindrance of the amine in complex 2 was the responsible of its equilibrium with the starting materials. The luminescence of 1 and 3 has been studied showing emission at 508 and 509 nm respectively. As the aliphatic amines can be considered models of biogenic amines, this luminescence has been used to explore the viability of this reaction in the detection of biogenic amines. The exposition to vapors of biogenic amines of a solution of [Ir2(ppy)4(µ-Cl)2] in CH2Cl2 or in different solid supports, showed that it was possible to detect the amines in a quick and easy way, with limits of detection value (in solution of methylene chloride) of 4.8 µM for cadaverine. 2020-03-09T12:19:13Z 2020-03-09T12:19:13Z 2020-03-09T12:19:13Z 2020-05 info:eu-repo/semantics/article 0020-1693 http://hdl.handle.net/10259/5237 10.1016/j.ica.2019.119409 eng Inorganica Chimica Acta. 2020, V. 504, 119409 https://doi.org/10.1016/j.ica.2019.119409 info:eu-repo/grantAgreement/MINECO/CTQ2015-71353-R info:eu-repo/grantAgreement/JCyL/BU263P18 info:eu-repo/grantAgreement/JCyL/BU087G19 http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 Internacional Elsevier