On the high efficiency of cis-dichloro [(S)-α-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)-α-methylbenzylamine][(S)- and (R)-3-phenyl-3-methoxybut-1-ene]platinum(II)

被引:4
作者
Uccello-Barretta, G [1 ]
Bernardini, R [1 ]
Balzano, F [1 ]
Lazzaroni, R [1 ]
Salvadori, P [1 ]
机构
[1] Dipartimento Chim & Chim Ind, CNR, Ctr Studio Macromol Stereordinat & Otticament Att, I-56126 Pisa, Italy
关键词
chiral derivatizing agent; NMR; enantiomeric purity; unsaturated ethers; stereochemistry;
D O I
10.1016/S0022-328X(00)00255-2
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The stereochemistry in solution of the diastereoisomeric complexes cis-dichloro[(S)-alpha-methylbenzylamine][(S)- and (R)-3-phenyl-3-methoxybut-1-ene]platinum(II) has been determined by H-1-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 Pt-195 resonances is due to the different positions of amine substituents with respect to the metal. (C) 2000 Published by Elsevier Science S.A. All rights reserved.
引用
收藏
页码:68 / 73
页数:6
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