T. Baul, Pelesakuo Kehie, O. B. Chanu
Jun 1, 2013
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0
Influential Citations
14
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Journal
Journal of Organometallic Chemistry
Abstract
Abstract Five new diorganotin(IV) compounds were prepared by reacting diorganotin dichlorides R 2 SnCl 2 (R = Me, n Bu and Ph) with sodium salts of the tridentate NO 2 ligands ( E )-3-hydroxy-2-((2-hydroxybenzylidene)amino)propanoic acid (L 1 H 2 Na) and ( E )-3-hydroxy-2-((1-(2-hydroxyphenyl)ethylidene)amino)propanoic acid (L 2 H 2 Na). The molecular structures of the resulting diorganotin (IV) compounds have been established by elemental analysis and a combination of IR and NMR ( 1 H, 13 C, 119 Sn) spectroscopy. In all cases, the 119 Sn NMR chemical shifts were indicative of five-coordinate tin atoms in solution. However, investigation of compounds [Me 2 SnL 1 H]·H 2 O ( 1 ), [Ph 2 SnL 1 H]·2C 6 H 6 ( 3 ), [Me 2 SnL 2 H]·CHCl 3 ( 4 ) and [Ph 2 SnL 2 H] ( 5 ) by single-crystal X-ray diffraction revealed that only compound 3 has a distorted trigonal–bipyramidal geometry in the solid state. For compounds 1 , 4 and 5 the coordination geometries are distorted octahedral, either due to intermolecular association through Sn⋯O interactions ( 1 ) or coordination through the oxygen atom from the pendant CH 2 OH group ( 4 and 5 ). At the supramolecular level, the molecular structures are linked through O–H⋯O hydrogen bonds to give discrete dimeric assemblies ( 4 ), 1D chains ( 3 , 5 ) and 2D hydrogen bonded layers ( 1 ).