The stereochemistry in solution of the diastereoisomeric complexes cis-dichloro[(S)-a-methylbenzylamine][(S)- and (R)-3- phenyl-3-methoxybut-1-ene]platinum(II) has been determined by 1H-NMR spectroscopy: in the two species the ethereal ligand is involved by its oxygen atom in the formation of an interligand O···H–N hydrogen bond with the amine. The remarkable differentiation of the 195Pt resonances is due to the different positions of amine substituents with respect to the metal.
On the high efficiency of cis-dichloro[(S)-a-methylbenzylamine](ethylene)platinum(II) as Chiral Derivatizing Agent for the determination of the enantiomeric composition of chiral unsaturated ethers by 195Pt NMR spectroscopy: a spectroscopic conformational and configurational characterization in solution of diastereoisomeric complexes cis-dichloro[(S)-?-methylbenzylamine][(S)- and (R)-3-phenyl-3-methoxybut-1-ene]platinum(II)
UCCELLO BARRETTA, GLORIA;BALZANO, FEDERICA;LAZZARONI, RAFFAELLO;SALVADORI, PIERO
2000-01-01
Abstract
The stereochemistry in solution of the diastereoisomeric complexes cis-dichloro[(S)-a-methylbenzylamine][(S)- and (R)-3- phenyl-3-methoxybut-1-ene]platinum(II) has been determined by 1H-NMR spectroscopy: in the two species the ethereal ligand is involved by its oxygen atom in the formation of an interligand O···H–N hydrogen bond with the amine. The remarkable differentiation of the 195Pt resonances is due to the different positions of amine substituents with respect to the metal.File in questo prodotto:
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