Preparation, characterization and solution behavior of α-hydroxyphosphonate complexes with tin tetrachloride

Add time:08/05/2019    Source:sciencedirect.com

The reaction of tin tetrachloride with a series of variously substituted α-hydroxyphosphonates (L) in anhydrous dichloromethane produces new octahedral tin complexes of the type [SnCl4L2]. These adducts were characterized by multinuclear (1H, 13C, 31P and 119Sn) NMR, IR spectroscopy, and elemental analysis. The NMR data show that these complexes exist in solution as mixtures of cis and trans isomers. Moreover, the solution behavior of these complexes in the presence of excess ligand was investigated with variable temperature NMR using the coalescence temperature method. The resulting metal-ligand exchange activation energies were determined, showing values in the range 50–52 kJ/mol. The remote substituent effect on the metal-ligand interaction was also studied and compared with closely related phosphoryl-tin complexes.

We also recommend Trading Suppliers and Manufacturers of TUNGSTEN TETRACHLORIDE (cas 13470-13-8). Pls Click Website Link as below: cas 13470-13-8 suppliers

Prev:Two-dimensional nanosheets of tungsten vanadate (WV2O7) obtained by assembling nanorods on graphene as a supercapacitor electrode
Next:Electrochemical behavior of tungsten ions from WC scrap dissolution in a chloride melt)