An S = 12 semiquinoid radical-bridged Mn6 wheel complex assembled from an asymmetric redox-active bridging ligand. Issue 5 (23rd November 2015)

• Record Type: Journal Article
• Authors: Jeon, Ie-Rang; David Harris, T.
• Is Part Of: Chemical communications. Volume 52:Issue 5(2016)
• Page Start: 1006
• Page End: 1008
• Publication Date: 2015-11-23
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c5cc08482b
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : The asymmetric redox-active ligand 4, 5-bis(pyridine-2-carboxamido)-1, 2-catechol ( N, O LH4 ) is synthesized and metalated to afford the S = 12 semiquinoid radical-bridged wheel complex [Mn II 6 ( N, O L 3− ˙)6 ] 6− . Abstract : The asymmetric redox-active ligand 4, 5-bis(pyridine-2-carboxamido)-1, 2-catechol ( N, O LH4 ) is prepared and metalated to afford the hexanuclear complex [Mn6 ( N, O L)6 ] 6− . Structural analysis and magnetic measurements reveal this complex to feature Mn II ions bridged by N, O L 3− ˙ radicals, which are antiferromagnetically coupled to give an S = 12 ground state.