Anion dependent self-assembly; formation of an octanuclear assembly by templation with the selenite dianion. (15th May 2020)

• Record Type: Journal Article
• Authors: Clemett, Christopher J.; Faulkner, Robert A.; Midgley, Gary; Slater, Christopher; Rice, Craig R.
• Is Part Of: Polyhedron. Volume 182(2020)
• Publication Date: 2020-05-15
• Subjects: Copper -- Self-assembly -- Anion -- Cryptand -- Tripodal; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2020.114483
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: The tripodal ligand L forms a trinuclear assembly [L2 Cu3 ] 6+ in which large and unsymmetrical anions are encapsulated, with the X-ray structures of [L2 Cu3 (SeO4 )] 4+ and [L2 Cu3 (S2 O3 )] 4+ reported. In the presence of the trigonal pyramidal SeO3 2− anion, both a trinuclear [L2 Cu3 (SeO3 )] 4+ and an octametallic assembly [L4 Cu8 (SeO3 )4 ] 8+ are formed and are analysed by X-ray crystallography. The formation of the octanuclear species is a consequence of maximising both the –NH⋯SeO3 2− interactions and the Cu 2+ coordination bonds. Abstract: The tripodal ligand L forms a trinuclear assembly [L2 Cu3 ] 6+ in which large and unsymmetrical anions are encapsulated, with the X-ray structures of [L2 Cu3 (SeO4 )] 4+ and [L2 Cu3 (S2 O3 )] 4+ reported. In the presence of the trigonal pyramidal SeO3 2− anion, both a trinuclear [L2 Cu3 (SeO3 )] 4+ and an octametallic assembly [L4 Cu8 (SeO3 )4 ] 8+ are formed and are analysed by X-ray crystallography. The formation of the octanuclear species is a consequence of maximising both the –NH⋯SeO3 2− interactions and the Cu 2+ coordination bonds.