1D Coordination polymers based on triphenylantimony(V) 3-formyl-substituted catecholates

• Published in: Journal of organometallic chemistry 2022-01, Vol.958, p.122190, Article 122190
• Main Authors: Astaf'eva, Tatyana V., Rumyantcev, Roman V., Arsenyev, Maxim V., Zherebtsov, Maxim A., Fukin, Georgy K., Cherkasov, Vladimir K., Poddel'sky, Andrey I.
• Format: Article
• Language: English
• Subjects: 1D coordination polymer; Antimony(V); Catecholate; Cyclic voltammetry; Single-crystal X-ray
• ISSN: 0022-328X; 1872-8561
• DOI: 10.1016/j.jorganchem.2021.122190

•New triphenylantimony(V) catecholates with an additional functional formyl group.•Rare 1D coordination polymeric structures due to intermolecular COformyl…Sb binding.•Both redox centers (catecholate and formyl) are accessible for electrochemical transformation. New triphenylantimony(V) catecholates 1–3 based on 3-formyl-substituted catechols L1-L3 have been synthesized and characterized (L1 is 2,3-dihydroxy-4,6-di‑tert‑butyl‑benzaldehyde, L2 is 2,3-dihydroxy-5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalene-1-carbaldehyde, and L3 is 2,3-dihydroxy-4,5,5,8,8-pentamethyl-5,6,7,8-tetrahydronaphthalene-1-carbaldehyde). The crystal structures of complexes 1, 2 have been determined by single-crystal X-ray analysis. It was found that the coordination sphere of the antimony atom is supplemented to 6 due to the intermolecular donor-acceptor bond of Sb…O with the formyl oxygen of the neighboring catecholate molecule. As a result, the formation of 1D-polymer structures for 1, 2 is observed. [Display omitted]