2026-04-17T22:15:57Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1527502025-12-04T21:41:48Zcom_2072_1057col_2072_478917col_2072_478933

Supramolecular assemblies and photophysical properties of ionic homo- and heteronuclear metallophilic complexes Svahn, Noora Sanz Beguer, Ingrid Rissanen, Kari Rodríguez Raurell, Laura Or Compostos d'or Gold Gold compounds The synthesis of two dinuclear ionic complexes with chemical formula [Au(PR3)2][Au(C≡CC5H4N)2] that contain the water soluble phosphines, PR3, PTA (1, 3,5-triaza-7-phosphaadamantane, 1) and DAPTA (3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane, 2) is herein described. The differences on their intermolecular reorganization have been analyzed and compared with the previously reported for the neutral complexes [Au(PR3)(C≡CC5H4N)]. It has been evidenced that the reorganization of the ligands giving rise to the dinuclear ionic complexes produces a complete change in the properties giving rise to Au***Au intermolecular assemblies. These aurophilic contacts are the responsible for the resulting luminescence which is not displayed for the parent compounds [Au(PR3)2]Cl and [PPh4][Au(C≡CC5H4N)2]. Compounds 1 and 2 were made react with three different silver salts (nitrate, triflate and hexafluorophosphate) giving rise to 1:1 heterometallic assemblies with some changes both on the wavelength and emission intensity. 2020-03-13T13:46:30Z 2021-10-01T05:10:17Z 2019-10-01 2020-03-13T13:46:31Z info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Versió postprint del document publicat a: https://doi.org/10.1016/j.jorganchem.2019.07.001 Journal of Organometallic Chemistry, 2019, vol. 897, p. 170-177 https://doi.org/10.1016/j.jorganchem.2019.07.001 cc-by-nc-nd (c) Elsevier B.V., 2019 http://creativecommons.org/licenses/by-nc-nd/3.0/es info:eu-repo/semantics/openAccess Elsevier B.V. Articles publicats en revistes (Química Inorgànica i Orgànica)