Ligand-directed synthesis of {MnIII5} twisted bow-ties

Heras Ojea, María José and Hay, Moya A. and Cioncoloni, Giacomo and Craig, Gavin A. and Wilson, Claire and Shiga, Takuya and Oshio, Hiroki and Symes, Mark D. and Murrie, Mark (2017) Ligand-directed synthesis of {MnIII5} twisted bow-ties. Dalton Transactions, 46 (34). pp. 11201-11207. ISSN 1477-9234 (https://doi.org/10.1039/C7DT02430D)

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Abstract

Two isostructural polymetallic complexes [MnIII5(μ3-O)2(CH3COO)4(L1)4]− and [MnIII5(μ3-O)2(CH3COO)4(L2)4]− have been synthesised by using two Schiff base ligands derived from 3,5-diamino-1,2,4-triazole, following two different preparative routes, either using the pre-formed ligand (for L1) or via a metal-mediated template synthesis (for L2). The {MnIII5} structure is unusual, being based on two corner-sharing perpendicular {Mn3} triangles forming a twisted bow-tie. The magnetic studies reveal antiferromagnetic coupling between Mn(iii) ions while electrochemical experiments are consistent with a quasi-reversible Mn(iii)↔Mn(iv) redox process at the central manganese ion.

  • Item type:Article
    ID code:69770
    Dates:
    Date
    Event
    31 July 2017
    Published
    24 July 2017
    Accepted
    Keywords:isostructural polymetallic complexes, Manganese, antiferromagnetic coupling, Chemistry, Chemistry(all)
    Subjects:Science > Chemistry
    Department:Faculty of Science > Pure and Applied Chemistry
    Depositing user: Pure Administrator
    Date deposited:12 Sep 2019 11:19
    Last modified:22 Mar 2023 02:10
    URI:https://strathprints.strath.ac.uk/id/eprint/69770
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