کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1323840 | 977307 | 2006 | 15 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis and coordination properties of palladium(II) and platinum(II) complexes with phosphonated triphenylphosphine derivatives Synthesis and coordination properties of palladium(II) and platinum(II) complexes with phosphonated triphenylphosphine derivatives](/preview/png/1323840.png)
Two triphenylphosphine derivatives, diethyl [4-(diphenylphosphanyl)benzyl]phosphonate (3a) and tetraethyl {[5-(diphenylphosphanyl)-1,3-phenylene]dimethylene}bis(phosphonate) (3b), and also the corresponding free acids 4a and 4b were prepared. These ligands were characterized by 1H, 13C and 31P NMR spectroscopy and mass spectrometry. A full set of their Pd(II) and Pt(II) complexes of the general formula [MCl2L2] and one dinuclear complex trans-[Pd2Cl4(3a)2] were synthesized and their isomerization behaviour in solution was studied. The complexes were characterized by 1H, 13C, 31P and 195Pt NMR spectroscopy, mass spectrometry and far-IR spectroscopy. The X-ray structures of all complexes with 3a or 3b have usual slightly distorted square-planar geometry on the metal ion. Salts of phosphonic acids 4a and 4b and their complexes are freely soluble in aqueous solution; therefore, they can be potentially useful in aqueous or biphasic catalysis.
Mono- and bis-phosphonated triphenylphosphines were synthesized in both ester and acid forms. Their cis and trans Pd(II) and Pt(II) complexes of the general formula [MCl2L2] were studied in solution and in the solid state.Figure optionsDownload as PowerPoint slide
Journal: Journal of Organometallic Chemistry - Volume 691, Issue 11, 15 May 2006, Pages 2409–2423