...
首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Mono- and dinuclear rhodium complexes with arsino(phosphino)methanes in different coordination modes [German]
【24h】

Mono- and dinuclear rhodium complexes with arsino(phosphino)methanes in different coordination modes [German]

机译:单核和双核铑与砷(膦)甲烷在不同配位方式下的配合物[德国]

获取原文
获取原文并翻译 | 示例
           

摘要

The cyclooctadiene complex [Rh(eta(4)-C8H12)(kappa(2) -tBu(2)-AsCH(2)PiPr(2))](PF6) (1a) reacts with CO and CNtBu to give the substitution products [Rh(L)(2)(kappa(2)-tBu(2)AsCH(2)PiPr(2))](PF6) (2, 3). From 1a and Na(acac) in the presence of CO the neutral compound [Rh(kappa(2)-acac)(CO)(kappa-P-tBu(2)AsCH(2)PiPr(2))] (4) is formed. The reactions of la, the corresponding B(Ar-F)(4)-salt 1b and [Rh(eta(4)-C8H12)(kappa(2)-iPr(2)AsCH(2)PiPr(2))](PF6) (5) with acetonitrile under a H-2 atmosphere affords the complexes [Rh(CH3CN)(2)-(kappa(2) -R(2)AsCH(2)PiPr(2))]X (6a, 6b, 7), of which 6a (R = tBu; X = PF6) gives upon treatment with Na(acac-f(6)) the bis(chelate) compound [Rh(kappa(2) -acac-f(6))(kappa(2)-tBu(2)AsCH(2)PiPr(2))] (8). From 8 and CH3I a mixture of two stereoisomers of composition [Rh(CH3)I(kappa(2)-acac-f(6))-(kappa(2)-tBu(2)AsCH(2)PiPr(2))] (9110) is generated by oxidative addition, and the molecular structure of the racemate 9 has been determined. The reactions of la and 5 with CO in the presence of NaCl leads to the formation of the "A-frame" complexes [Rh-2(CO)(2)(mu-Cl)-(mu-R(2)AsCH(2)PiPr(2))(2)](PF6) (11, 12), which have been characterized crystallographically. From 11 and 12 the dinuclear substitution products [Rh-2(CO)(2)(mu-X)(mu-R(2)AsCH(2)PiPr(2))(2)](PF6) (13-16) are obtained by replacing the bridging chloride for bromide, hydride or hydroxide, respectively. While 12 (R = iPr) reacts with NaI to give the related "A-frame" complex 18, treatment of 11 (R = tBu) with NaI yields the mononuclear chelate compound [RhI(CO)(kappa(2)-tBu(2)-AsCH(2)PiPr(2))] (20). The reaction of 20 with CH3I affords the acetyl complex [RhI2{C(O)CH3)(kappa(2)-tBu(2)AsCH(2)PiPr(2))] (21) with five-coordinate rhodium atom. [References: 74]
机译:环辛二烯络合物[Rh(eta(4)-C8H12)(kappa(2)-tBu(2)-AsCH(2)PiPr(2))(PF6)(1a)与CO和CNtBu反应生成取代产物[Rh(L)(2)(κ(2)-tBu(2)AsCH(2)PiPr(2))](PF6)(2、3)。从1a和Na(acac)在CO存在下中性化合物[Rh(kappa(2)-acac)(CO)(kappa-P-tBu(2)AsCH(2)PiPr(2))](4)形成了。 la,相应的B(Ar-F)(4)-盐1b和[Rh(eta(4)-C8H12)(kappa(2)-iPr(2)AsCH(2)PiPr(2))的反应(PF6)(5)在H-2气氛下用乙腈提供络合物[Rh(CH3CN)(2)-(kappa(2)-R(2)AsCH(2)PiPr(2))] X(6a, 6b,7),其中6a(R = tBu; X = PF6)经Na(acac-f(6))处理后得到双(螯合物)化合物[Rh(kappa(2)-acac-f(6) )(kappa(2)-tBu(2)AsCH(2)PiPr(2))](8)。由8和CH3I组成的两个立体异构体的混合物[Rh(CH3)I(kappa(2)-acac-f(6))-(kappa(2)-tBu(2)AsCH(2)PiPr(2)) (9110)通过氧化加成而生成,外消旋体9的分子结构已经确定。在NaCl存在下,la和5与CO反应导致形成“ A框架”络合物[Rh-2(CO)(2)(mu-Cl)-(mu-R(2)AsCH( 2)PiPr(2))(2)](PF6)(11,12),已通过结晶表征。从11和12中获得双核取代产物[Rh-2(CO)(2)(mu-X)(mu-R(2)AsCH(2)PiPr(2))(2)](PF6)(13-16 )分别通过将桥联的氯化物替换为溴化物,氢化物或氢氧化物而获得。尽管12(R = iPr)与NaI反应生成相关的“ A框架”复合物18,但用NaI处理11(R = tBu)则得到单核螯合物[RhI(CO)(kappa(2)-tBu( 2)-AsCH(2)PiPr(2))](20)。 20与CH3I的反应可得到具有五配位铑原子的乙酰基络合物[RhI2 {C(O)CH3)(kappa(2)-tBu(2)AsCH(2)PiPr(2))](21)。 [参考:74]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号