Synthesis and characterization of tribenzyltin(IV) and dibenzyltin(IV) complexes of 2-{[(2Z)-3-hydroxy-1-methyl- 2-butenylidene]amino}acetic acid: Crystal structure of tribenzyl{2-{[(2Z)-3-hydroxy-1-methyl-2-butenylidene] amino}acetato}tin(IV) |
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| Authors: | Tushar S. Basu Baul Cheerfulman Masharing Eleonora Rivarola Frank E. Smith Ray Butcher |
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| Affiliation: | (1) Department of Chemistry, North-Eastern Hill University, NEHU Permanent Campus, Umshing, Shillong, 793022, India;(2) Dipartimento di Chimica Inorganica e Analitica “Stanislao Cannizzaro,” Università di Palermo, Viale delle Scienze, Parco D’Orleans II, Edificio 17, 90128 Palermo, Italy;(3) Weill Cornell Medical College in Qatar, P.O. Box 24144, Doha, Qatar;(4) Department of Chemistry, Howard University, Washington, DC 20059, USA |
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| Abstract: | Reactions of equimolar quantities of potassium 2-{[(2Z)-3-hydroxy-1-methyl-2-butenylidene]amino}acetate, with R n SnX4?n (R: benzyl– and n=2 or 3) in methanol yielded products of compositions LHSn(PhCH2)3 and LSn(PhCH2)2, respectively. The complexes were characterized by microanalysis, IR, NMR (1H, 13C, 119Sn) and 119mSn Mössbauer spectroscopy. A full characterization of the structure of the complex, tribenzyl{2-{[(2Z)-3-hydroxy-1-methyl-2-butenylidene]amino}acetato}tin(IV), was carried out by single crystal X-ray crystallography. The compound exists as centrosymmetric dimers in which two ligand molecules bridge the two tin centres. Each of the tin atoms in the dimeric unit is five coordinate in an approximately trigonal bipyramidal configuration, with carbon atoms in the equatorial positions and oxygen atoms arranged axially. |
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| Keywords: | 2-{[(2Z)-3-hydroxy-1-methyl-2-butenylidene]amino}acetic acid Tribenzyltin Dibenzyltin NMR 119Sn M?ssbauer Crystal structure |
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