Self-assembly of organotin(IV) 4-fluorobenzeneseleninato complexes: 1D polymeric chain, helical double-chain polymer and tetranuclear cage

•Four new organotin complexes have been synthesized by the 4-fluorobenzeneseleninato ligand.•The structures of these complexes includes 1D polymeric chain, helical, and double-chain tetranuclear cage structure.•The weak intermolecular interactions can form diverse supermolecular structures.

Four new organotin complexes, [Me3SnO2SeC6H4-F-p]n (1), [Ph3SnO2SeC6H4-F-p] (2), [Me2Sn(O2SeC6H4-F-p)2]n (3), and [(PhSn)4(μ2-O)2(O2SeC6H4-F-p)8] (4) have been synthesized via reactions of 4-fluorobenzeneseleninato ligand and the corresponding R3SnCl or R2SnCl2 (R = Me, Ph) with sodium ethoxide in methanol. All the complexes have been characterized by X-ray crystallography, elemental analysis, FT-IR, and NMR (1H, 13C, 119Sn) spectroscopy. The structural analysis indicates that complex 1 adopts a 1D infinite zigzag chain structure, complex 2 displays a 1D infinite linear polymeric chain structure, complex 3 is 1D helical double-chain polymer containing eight-membered Sn2O4Se2 inorganic ring, and complex 4 shows a tetranuclear cage structure containing two Sn–O–Sn motifs connected by bridging [p-F-C6H4SeO2]- ligands.

Graphical abstractFour new organotin complexes, [Me3SnO2SeC6H4-F-p]n (1), [Ph3SnO2SeC6H4- F-p]n (2), [Me2Sn(O2SeC6H4-F-p)2]n (3), and [(PhSn)4(µ2-O)2(O2SeC6H4-F-p)8] (4) have been synthesized. All the complexes have been characterized by X-ray crystallography, elemental analysis, FT-IR, and NMR (1H, 13C, 119Sn) spectroscopy.Figure optionsDownload full-size imageDownload as PowerPoint slide