Abstract
The catecholate groups in [{Pt(L)}3(μ3-tctq)] (H6tctq = 2,3,6,7,10,11-hexahydroxy-4b,8b,12b,12d-tetramethyltribenzotriquinacene; L = a diphosphine chelate) undergo sequential oxidation to their semiquinonate forms by voltammetry, with ΔE1/2 = 160–170 mV. The monoradical [{Pt(dppb)}3(μ3-tctq˙)]+ is valence-localised, with no evidence for intervalence charge transfer in its near-IR spectrum. This contrasts with previously reported [{Pt(dppb)}3(μ3-ctc˙)]+ (H6ctc = cyclotricatechylene), based on the same macrocyclic tris-dioxolene scaffold, which exhibits partly delocalised (class II) mixed valency.
Original language | English |
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Pages (from-to) | 2281-2284 |
Number of pages | 4 |
Journal | Chemical Communications |
Volume | 55 |
Issue number | 16 |
Early online date | 31 Jan 2019 |
DOIs | |
Publication status | Published - 25 Feb 2019 |
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Data to support study of Rigidification of a Macrocyclic Tris-Catecholate Scaffold Leads to Electronic Localisation of its Mixed Valent Redox Product
Halcrow, M. A. (Creator), Greatorex, S. (Creator), Vincent, K. B. (Creator), Baldansuren, A. (Creator), McInnes, E. J. L. (Creator), Patmore, N. J. (Creator) & Sproules, S. (Creator), University of Leeds, 2019
DOI: 10.5518/557
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