首页> 外文期刊>Chemistry: A European journal >Chromium and molybdenum pentacarbonyl complexes of phosphinocarbodithioates: Synthesis, molecular structure and behaviour in RAFT polymerisation
【24h】

Chromium and molybdenum pentacarbonyl complexes of phosphinocarbodithioates: Synthesis, molecular structure and behaviour in RAFT polymerisation

机译:膦碳二硫代酸酯的铬和钼五羰基配合物:RAFT聚合反应中的合成,分子结构和行为

获取原文
获取原文并翻译 | 示例
           

摘要

Molybdenum and chromium pentacarbonyldiphenylphosphinocarbodithioate complexes have been prepared in a one-pot reaction from the corresponding metallocarbonyldiphenylphosphine. The complexes have been characterised by IR, ~1H,~(31)P and ~(13)C NMR spectroscopies and by mass spectrometry. The solid-state structures of [Cr(CO)_5{PPh _2CS_2CH(Ph)CH_3}] (1) and [Mo(CO) _5{PPh_2CS_2CH(Ph)CH_3}] (2) are reported. Compounds 1 and 2 are isostructural and crystallise in the triclinic P$ar 1$ space group. These new organometallic compounds are highly efficient reversible chain-transfer agents for reversible addition-fragmentation chain-transfer (RAFT) polymerisation of styrene (St) and n-butyl acrylate (nBA), with controlled number-average molar mass values and narrow dispersities (<1.2). The controlled character of the polymerisation was further exemplified by the synthesis of St and nBA diblock copolymers.
机译:一锅反应由相应的金属羰基二苯基膦制备了钼和五羰基二苯基膦基碳二硫代铬酸配合物。该复合物已通过IR,〜1H,〜(31)P和〜(13)C NMR光谱学和质谱法表征。报告了[Cr(CO)_5 {PPh _2CS_2CH(Ph)CH_3}](1)和[Mo(CO)_5 {PPh_2CS_2CH(Ph)CH_3}](2)的固态结构。化合物1和2在三斜P $ bar 1 $空间群中是同构的且结晶的。这些新型有机金属化合物是用于苯乙烯(St)和丙烯酸正丁酯(nBA)的可逆加成-断裂链转移(RAFT)聚合的高效可逆链转移剂,其数均摩尔质量值受控且分散度窄( <1.2)。 St和nBA二嵌段共聚物的合成进一步例证了聚合的受控特征。

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