Synthesis and characterization of triorganotin(IV) complexes of 5-[(E)-2-(aryl)-1-diazenyl]-2-hydroxybenzoic acids.

Add time:07/14/2019    Source:sciencedirect.com

The triphenyltin and tri-n-butyltin complexes of some 5-[(E)-2-(aryl)-1-diazenyl]-2-hydroxybenzoic acids have been synthesized and characterized by 1H-, 13C-, 119Sn-NMR, IR and 119mSn Mössbauer spectroscopic techniques in combination with elemental analysis. The crystal structures of triphenyltin 5-[(E)-2-(aryl)-1-diazenyl]-2-hydroxybenzoates (aryl=phenyl, 2-methylphenyl, 3-methylphenyl and 4-methoxyphenyl) are reported. Both X-ray and 119Sn Mössbauer data indicate that the triphenyltin complexes adopt a monomeric distorted tetrahedral configuration with the carboxylate ligand coordinating in a monodentate mode. By contrast, 119Sn Mössbauer spectroscopy shows that each tributyltin complex is polymeric and features a trans-trigonal bipyramidal geometry with a planar SnBu3 unit and two apical carboxylate oxygen atoms derived from bidentate bridging carboxylate ligands. This is a solid-state effect, as both 119Sn-NMR and 1J(13C–119/117Sn) coupling constant data indicate tetrahedral geometries in solution for the triphenyl and tri-n-butyl complexes.

We also recommend Trading Suppliers and Manufacturers of 4-methoxy-9-methyl-N-(2-methylphenyl)-11-thioxo-8-oxa-10,12-diazatricyclo[7.3.1.0~2,7~]trideca-2,4,6-triene-13-carboxamide (cas 1005085-22-2). Pls Click Website Link as below: cas 1005085-22-2 suppliers

Prev:Asymmetric synthesis of 3-substituted 8-hydroxy-3,4-dihydroisocoumarins from (S)-4-isopropyl-2-(2-methoxy-6-methylphenyl)oxazoline
Next:2,5-Bis-(2′-methoxy-5′-methylphenyl)-furan, a rare type of compound from Berberis umbellata)