Untersuchungen an Arylbleitriacetaten. Röntgenstrukturanalyse von 2-methylphenyl-und 2-chlorphenylbleitriacetat
作者:F. Huber、H. Preut、D. Scholz、M. Schürmann
DOI:10.1016/0022-328x(92)83382-r
日期:1992.12
The crystal structures of 2-XC6H4Pb(OAc)3 (X = CH3, Cl; OAc = OOCCH3) have been determined by X-ray diffraction. Both compounds are isostructural and crystallize as triclinic, space group P1BAR. They consist of monomers, the seven-coordinated central atom being in a distorted pentagonal-bipyramidal environment with five O atoms of the three unsymmetrically chelating carboxylate groups in equatorial positions, and one O and one C(aryl) atom in axial positions. IR, H-1, C-13 and Pb-207 NMR spectroscopic data of these and other monoaryllead triacetates are reported, and similar structures with seven-coordinated lead are inferred. Weak coordination of Y to Pb is discussed to exist possibly in 2-YC6H4Pb(OAc)3(Y = F, Cl, OCH3).