REACTIONS OF HETERODINUCLEAR MU-ETHYNEDIYL PALLADIUM PLATINUM COMPLEXES WITH ISOCYANIDES - LIVING POLYMERIZATION OF ARYL ISOCYANIDES

被引：88

作者：

ONITSUKA, K ^{[1
]}

YANAI, K ^{[1
]}

TAKEI, F ^{[1
]}

JOH, T ^{[1
]}

TAKAHASHI, S ^{[1
]}

机构：

[1] OSAKA UNIV,INST SCI & IND RES,IBARAKI,OSAKA 567,JAPAN

来源：

ORGANOMETALLICS | 1994年 / 13卷 / 10期

关键词：

D O I：

10.1021/om00022a022

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The heterodinuclear mu-ethynediyl complex Cl(R3P)2PtC=CPd(PR3)2Cl (3) reacts with aryl isocyanides in the molar ratio 1:2 to give the double-insertion product Cl(R3P)2PtC=CC(=NAr)C(=NAr)Pd(PR3)2Cl (5). Treatment of 3 with aryl isocyanides in the molar ratio 1:100 causes a multiple and successive insertion of isocyanides into the Pd-C bond of 3, leading to isocyanide polymers 7 which have a narrow distribution of molecular weight, suggesting that the reaction is a living polymerization. The living behaviors are confirmed by trace experiments using gel permeation chromatography and the syntheses of isocyanide block copolymers (9). The (mu-ethynediyl)dipalladium complex Cl(R3P)2PdC=CPd(PR3)2Cl (1) similarly produces isocyanide polymers (10), while the (mu-butadiynediyl)dipalladium complex 11 and mononuclear palladium acetylide 13 give only single-insertion products 12 and 14, respectively.

引用

页码：3862 / 3867

页数：6

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