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MULTINUCLEAR NMR SPECTROSCOPY APPROACH TO STUDY OF SOLUTION STRUCTURE OF ORGANOTIN(IV) FLUORIDES
Autoři: Novák Petr | Padělková Zdeňka | Bareš Josef | Nádvorník Milan | Růžička Aleš | Holeček Jaroslav
Rok: 2005
Druh publikace: ostatní - přednáška nebo poster
Název zdroje: CENTRAL EUROPEAN NMR DISCUSSION GROUPS, 20th NMR VALTICE, Valtice, Czech Republic, April 4th-6th, 2005
Název nakladatele: Masarykova univerzita
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Jazyk Název Abstrakt Klíčová slova
cze MULTINUCLEAR NMR SPECTROSCOPY APPROACH TO STUDY OF SOLUTION STRUCTURE OF ORGANOTIN(IV) FLUORIDES One of topics in chemistry of organotin(IV) compounds is to prepare and structurally characterize monomeric organotin fluorides, which are of great interest due to their ability to undergo the metathetical halide for fluoride exchange reactions with different kinds of organometallic halides. [1] The structures of many triorganotin fluorides have been determined and found to be either oligo- or polymeric with the "rod-like" or "zig-zag" F-Sn-F chains in solid state. [2] These compounds have relatively high melting points, and are rather insoluble in common organic solvents, which was reported many times as a limitation in studies of their solution structure and reactivity. To the best of our knowledge only one purely monomeric diorganotin compound has been described in the solid state by crystallographic techniques. [3] There has been prepared and characterized using multinuclear NMR spectroscopy a set of organotin(IV) fluorides which contain one or two CN-chelating ligands and alkyl or aryl groups of different steric bulk and electronic properties. [4]
eng MULTINUCLEAR NMR SPECTROSCOPY APPROACH TO STUDY OF SOLUTION STRUCTURE OF ORGANOTIN(IV) FLUORIDES One of topics in chemistry of organotin(IV) compounds is to prepare and structurally characterize monomeric organotin fluorides, which are of great interest due to their ability to undergo the metathetical halide for fluoride exchange reactions with different kinds of organometallic halides. [1] The structures of many triorganotin fluorides have been determined and found to be either oligo- or polymeric with the "rod-like" or "zig-zag" F-Sn-F chains in solid state. [2] These compounds have relatively high melting points, and are rather insoluble in common organic solvents, which was reported many times as a limitation in studies of their solution structure and reactivity. To the best of our knowledge only one purely monomeric diorganotin compound has been described in the solid state by crystallographic techniques. [3] There has been prepared and characterized using multinuclear NMR spectroscopy a set of organotin(IV) fluorides which contain one or two CN-chelating ligands and alkyl or aryl groups of different steric bulk and electronic properties. [4] Organometallic compounds