An extensive family of heterometallic titanium(IV)-metal(III) rings with structure control through templates
journal contributionposted on 28.03.2019 by Grigore A. Timco, Antonio Fernandez-Mato, Andreas K. Kostopoulos, Christopher A. Muryn, Robin G. Pritchard, Ilya Strashnov, Inigo J. Vitorica-Yrezabal, George F. Whitehead, Richard E. Winpenny
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A family of heterometallic [Cat][TixMO(x+1)(O2CtBu)2x+2] rings is reported where Cat=a secondary or tertiary alkyl ammonium ion, x=7, 8 or 9, and M=FeIII, GaIII, CrIII, InIII and AlIII. The structures are regular polygons with eight, nine or ten vertices with each edge bridged by an oxide and two pivalates. The size of the ring formed is controlled by the alkylammonium cation present. In each case a homometallic by‐product is found [Cat][TixO(x+1)(O2CtBu)2x−1].
This work was supported by the University of Manchester, the EPSRC (UK,EP/L018470/1) and the National EPR Facility. We also thank EPSRC (UK) for funding an X-ray diffractometer (grant number EP/K039547/1).