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Research article2017Peer reviewed

Group III quinaldates: synthesis, structure and photoluminescence

Birnara, Christiana; Kessler, Vadim G.; Papaefstathiou, Giannis S.

Abstract

The reactions of Al(III), Ga(III) and In(III) nitrates with 2-quinaldic acid (qaH) afforded [Al-2(OH)(2)(qa)(4)]center dot 2H(2)O (1), [Ga(qa)(2)(H2O)(2)]NO3 (2) and [In(qa)(2)(NO3)(H2O)] (3), respectively, in high yields. The crystal structures of 1, 2 and 3 have been determined by single-crystal X-ray crystallography. The structure of 1 features a di-hydroxo bridged [Al-2(mu-OH)(2)](4+) dimer in which each Al(III) is further ligated by two bidentate chelate qa(-) ligands. Complexes 2 and 3 are mononuclear with the M(III) ions in octahedral environments surrounded by two bidentate chelate qa(-) and two H2O in 2 or one H2O and a terminal NO3- in 3. Characteristic IR as well as thermal analysis and solid-state fluorescence are discussed.[GRAPHICS].

Keywords

Al(III) complexes; crystal structures; Ga(III) complexes; In(III) complexes; quinaldic acid; solid-state fluorescence

Published in

Journal of Coordination Chemistry
2017, Volume: 70, number: 6, pages: 997-1007
Publisher: TAYLOR & FRANCIS LTD

    UKÄ Subject classification

    Inorganic Chemistry
    Materials Chemistry
    Organic Chemistry

    Publication identifier

    DOI: https://doi.org/10.1080/00958972.2017.1283416

    Permanent link to this page (URI)

    https://res.slu.se/id/publ/83348