MgTi(cat)3, a promising precursor for the preparation of Ti–MOFs?. (1st December 2018)

• Record Type: Journal Article
• Authors: Assi, Hala; Haouas, Mohamed; Mouchaham, Georges; Martineau-Corcos, Charlotte; Allain, Clémence; Clavier, Gilles; Guillou, Nathalie; Serre, Christian; Devic, Thomas
• Is Part Of: Polyhedron. Volume 156(2018)
• Page Start: 111
• Page End: 115
• Publication Date: 2018-12-01
• Subjects: Metal Organic Frameworks -- Titanium -- phenolates -- Exploratory synthesis; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2018.09.022
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: An anionic titanium(IV) catecholate complex was shown to be simultaneously stable enough in water to avoid hydrolysis and able to undergo ligand exchange, potentially allowing the preparation of new Ti–MOFs in aqueous media. Abstract: A new Ti(IV) triscatecholate complex was prepared in aqueous conditions. Its crystal structure was solved, and the complex was fully characterized by multiple techniques, including thermogravimetric analysis, temperature dependent powder X-ray diffraction (XRD), as well as NMR and UV–Vis spectroscopies. Thanks to liquid-state NMR, it is shown that such a complex is simultaneously stable enough in water to avoid the hydrolysis of the Ti(IV) ion, while still being able to undergo ligand exchange. Eventually, preliminary experiments suggest that this precursor is suitable for the preparation of new MOFs built up from polycatecholate ligands in aqueous media.