1. The physical and electronic properties of Metal-Organic Frameworks containing dipyridylthiazolo[5,4-d]thiazole
- Author
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Rizzuto, FJ, Pal, SC, Kearns, ER, Hua, C, Solomon, MB, Doheny, PW, Faust, TB, Kepert, CJ, Das, MC, D'Alessandro, DM, Rizzuto, FJ, Pal, SC, Kearns, ER, Hua, C, Solomon, MB, Doheny, PW, Faust, TB, Kepert, CJ, Das, MC, and D'Alessandro, DM
- Abstract
Five Metal–Organic Frameworks ({[M2(tdc)2(L)2]·2DMF}, tdc = 2,5-thiophenedicarboxylate, M = ZnII (1–Zn), CuII (1–Cu), MnII (1–Mn), {[Zn(oba)(L)]·DMF·H2O} (2–Zn), oba = 4,4′-oxybisbenzoate, and {[Zn2(bpdc)2(L)2]·L}, (3–Zn) bpdc = 4,4′-biphenyldicarboxylate) that incorporate the redox-active 2,5-dipyridylthiazolo[5,4-d]thiazole (DPTzTz) ligand (L) have been synthesised and their electronic properties elucidated. The ligand-based organic radicals were generated using in situ techniques and monitored using a suite of solid-state spectroelectrochemistry techniques. The absence of a near infra-red band (NIR), indicating through-space intervalence charge transfer (IVCT), in all analysed materials suggests that both the inter-ligand distance between cofacial TzTz moieties and the flexibility of the TzTz moiety affect the through-space IVCT.
- Published
- 2023