Abstract
New triarylantimony(V) 4,5-difluoro-3,6-di-tert-butylcatecholates of (4,5-F2-3,6-Cat)SbAr3 type, where Ar is p-fluorophenyl (1), p-chlorophenyl (2), phenyl (3), have been synthesized and characterized in details. The electrochemical properties of complexes 1–3 were investigated by means of cyclic voltammetry in comparison with the redox properties of related triarylantimony(V) 4-chloro-3,6-di-tert-butylcatecholates (4-Cl-3,6-Cat)SbAr3 (complexes 4–6). The electrochemical oxidation of complexes proceeds as two successive one-electron steps leading to monocations of [(SQ)SbAr3]+ type and dications [(Q)SbAr3]2+. The presence of two fluorine substituents in redox-active ligand in 1–3 leads to the increase of the stability of monocationic derivatives. The molecular structures of (4,5-F2-3,6-Cat)SbPh3 (3) and related 4-chlorosubstituted catecholato (4-Cl-3,6-Cat)SbPh3 (6) in crystal were determined by single-crystal X-ray analysis. In crystal form, catecholates 3 and 6 form hexamolecular cycles (CatSbPh3)6 due to the intermolecular Hphenyl ⋯ Sb interactions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
