Formation of platinum allyl and propargyl complexes from protonation of platinum enyne and diyne complexes

被引：22

作者：

Casey, CP

Chung, S

Ha, Y

Powell, DR

机构：

来源：

INORGANICA CHIMICA ACTA | 1997年 / 265卷 / 1-2期

关键词：

crystal structures; platinum complexes; allyl complexes; propargyl complexes;

D O I：

10.1016/S0020-1693(97)05640-5

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Protonation of (Ph3P)(2)Pt[eta(2)-HC drop CC(CH3)=CH2] (2a) with excess HBF4 . Et2O produced the pi-allyl complex (Ph3P)(2)Pt[eta(3)- H2C=CC(CH3)=CH2]+BF4-(3a-BF4) instead of a pi-propargyl complex. Reaction of excess CF3CO2H with 2a initially produced the analogous pi-allyl complex 3a-CF3CO2 which then added CF3CO2H across the vinylidene unit of 3a-CF3CO2 to give the pi-allyl complex (Ph3P)(2)Pt[eta(3)-CH3C(CF3CO2) C(CH3)CH2]+CF3CO2-(5a). Protonation of the platinum diyne complex [(p-CH3-C6H4)(3)P](2)Pt(eta(2)- CH3C drop CC drop CCH3) (7b) with HBF4Et2O at -73 degrees C initially produced the platinum hydride complex trans-[(p-CH3-C6H4)(3)P](2)- PtH(eta(2)-CH3C drop CC drop CCH3)+BF4-(9), which rearranged to the platinum pi-propargyl complex [(p-CH3-C6H4)(3)P](2)Pt[eta(3)-(CH3CH=)-CC drop CCH3]+BF4-(11) at -28 degrees C. (C) 1997 Elsevier Science S.A.

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页码：127 / 138

页数：12

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