Multiple Reactivity of Sn II Complexes Bearing Catecholate and o ‐Amidophenolate Ligands

• Published in: European journal of inorganic chemistry 2016-08, Vol.2016 (23), p.3813-3821
• Main Authors: Chegerev, Maxim G., Piskunov, Alexander V., Maleeva, Aryna V., Fukin, Georgy K., Abakumov, Gleb A.
• Format: Article
• Language: English
• ISSN: 1434-1948; 1099-0682
• DOI: 10.1002/ejic.201600501

The reactivity of tin(II) catecholate complex CatSn ( 1 ) (where Cat = 3,6‐di‐ tert ‐butylcatecholate dianion) and two o ‐amidophenolate complexes Dipp APSn ( 2 ) and Ph APSn ( 3 ) [where Dipp AP = 4,6‐di‐ tert ‐butyl‐ N ‐(2,6‐diisopropylphenyl)amidophenolate; Ph AP = 4,6‐di‐ tert ‐butyl‐ N ‐(phenyl)amidophenolate dianions] towards different reagents is reported. Products of the insertion of 1 and 2 into the S–S bond of tetramethylthiuram disulfide were obtained and characterised by X‐ray diffraction analyses. The low temperature oxidation of complexes 1 and 2 with 2‐ethoxy‐3,6‐di‐ tert ‐butylphenoxy radical enabled us to detect formation of paramagnetic tin(II) derivatives containing the radical‐anion form of the redox‐active ligand. The reaction of tin derivative 3 with Ni(CO) 4 leads to substitution of one of the CO groups in the latter with the formation of a new bimetallic product.