AROMATIC LEAD(IV) COMPOUNDS .12. PB-207 FT NMR INVESTIGATIONS ON ARYLLEAD(IV) COMPOUNDS

被引：17

作者：

VANBEELEN, DC

VANDERKOOI, HO

WOLTERS, J

机构：

[1] Gorlaeus Laboratories, Division of Organometallic Chemistry, University of Leiden, 2300 RA Leiden

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1979年 / 179卷 / 01期

关键词：

D O I：

10.1016/S0022-328X(00)87792-X

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

207Pb FT NMR data for a number of aromatic lead(IV) compounds are reported. The chemical shifts of the compounds cover'a range of about 900 ppm. Compounds Ar4Pb give resonances at about 150-200 ppm upfield from tetramethyllead. Downfield shifts are observed for compounds Ar3PbR (R = alkyl) and Ar3PbX (X = halogen or acetate). With increasing number of electronegative substituents the lead resonance is shifted towards high field. The observed phenomena are discussed on the bases of Ramsey's paramagnetic term, anisotropy contributions and the influence of the coordination number. © 1979.

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页码：37 / 41

页数：5

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