...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Catalysis science & technology >Bimetallic scorpionate-based helical organoaluminum complexes for efficient carbon dioxide fixation into a variety of cyclic carbonates
【24h】

Bimetallic scorpionate-based helical organoaluminum complexes for efficient carbon dioxide fixation into a variety of cyclic carbonates

机译：双金属scorpionate-based螺旋organoaluminum复合物的有效碳二氧化碳固定成一个各种各样的循环碳酸盐

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A new family of bimetallic helical aluminum complexes can be obtained via warming up the preliminary dinuclear adduct complexes, or alternatively, by direct heating of the protioligands with 2 equiv. of AlR3. X-ray diffraction analysis corroborated both the high coordination versatility in the ligands and the existence of helical chirality in the complexes. DFT calculations confirmed the preferential arrangement of the ancillary scorpionates in the bimetallic complexes and rationalized the proposed reaction mechanism. Bimetallic complexes were investigated as catalysts in combination with halides for the cycloaddition reaction of CO2 with a wide range of epoxides for cyclic carbonate formation. These studies led to the development of a sustainable, inexpensive, efficient and selective bicomponent system with a very broad substrate scope, including internal and challenging bio-based trisubstituted terpene derived substrates, reaching high conversions for trans-limonene oxide under mild conditions (79% conv., 70 degrees C, 10 bar CO2, 1 mol%, 66 h).
机译：一个新家庭的双金属螺旋铝配合物可以获得通过热身初步双核的加合物复合物或另外,通过直接加热的与2 equiv. AlR3 protioligands。衍射分析证实了高协调配体和多功能性存在的螺旋手性配合物。DFT计算证实了优惠安排的辅助scorpionates双金属配合物和合理化提出了反应机理。研究催化剂的组合吗与卤化物的环加成反应二氧化碳与环氧化合物的广泛循环碳酸盐岩的形成。可持续的发展,便宜,有效和选择性双组分系统非常宽泛的底物范围,包括内部和挑战生物三代的萜烯派生的基质,达到高转换trans-limonene氧化物在温和的条件下(79%conv。70摄氏度10条二氧化碳,1摩尔%,66 h)。

著录项

相似文献

  • 外文文献
  • 中文文献
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