Platinum and rhodium complexes with isoleucinol-based bi- and tricyclic hydrophosphoranesстатья
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Дата последнего поиска статьи во внешних источниках: 19 декабря 2017 г.
Аннотация:The complex formation of bi- and tricyclic hydrophosphorane derivatives of isoleucinol with [Pt(COD)Cl2], [Rh(CO)2Cl]2, and [Rh(THF)2(COD)]+BF4– (COD is cycloocta-1,5-diene) was investigated. In all cases, bicyclic hydrospirophosphorane selectively forms the metal chelates [M(η2-PтИйN)(X)Cl] (M = Pt, X = Cl; M = Rh, X = CO) and [Rh(η2-PтИйN)(COD)]+BF4–. (┬лтИй┬╗ denotes the residue of the hydrospirophosphorane ligand, which does not contain the P and N atoms). In addition, tricyclic hydrophosphorane (L) generates the phosphoranide complexes [Pt(η1-L)(COD)Cl]+Y– (Y = Cl or BF4). The structures of the new compounds were established by IR spectroscopy, 31P, 13C, 1H, 2H, 11B, 19F, and 195Pt NMR spectroscopy, and plasma-desorption and electrospray ionization mass spectrometry. The possible mechanism of coordination of hydrophosphoranes is discussed.