Organotin(IV) derivatives of some O, C, O-chelating ligands

摘要: The series of organotin(IV) complexes L1-3SnPhnCl3-n, where L1-3 are O,C,O-chelating ligands (called the pincer ligands), 2,6-bis(alkoxymethyl)phenyl-, 2,6-(ROCH2)2C6H3- (L1, R = Me, L2, i-Pr, L3, t-Bu, n 3−0), have been synthesized and characterized by 1H, 13C, 119Sn NMR spectroscopy, MS-ESI spectrometry, elemental analysis. structure selected compounds L1SnPh3 (1), L1SnPh2Cl (2), L1SnPhCl2 (3), L1SnCl3 (4), L2SnPhCl2 (7), L3SnPhCl2 (11) was studied X-ray crystallography CP/MAS spectroscopy in solid state. determination crystal structures reveals similarity all shapes coordination polyhedra. deformations polyhedra depend on degree donor−acceptor Sn−O interaction (from very weak (interatomic distance 2.963(1) A) to medium-strong (2.475(1) A)), which increases with increasing Lewis acidity tin atom L1-3SnPhnCl3-n entities decreases steric demands substitu...