Comparison of the structure-directing effect of ephedrine and pseudoephedrine during crystallization of nanoporous aluminophosphates
作者: Beatriz Bernardo-MaestroFernando López-ArbeloaJoaquín Pérez-ParienteLuis Gómez-Hortigüela
作者单位: 1Instituto de Catálisis y Petroleoquímica, ICP-CSIC, C/ Marie Curie 2, 28049, Madrid, Spain
2Departamento de Química Física, Universidad del País Vasco, Apartado 644, 48080, Bilbao, Spain
刊名: Microporous and Mesoporous Materials, 2017, Vol.254 , pp.211-224
来源数据库: Elsevier Journal
DOI: 10.1016/j.micromeso.2017.04.008
关键词: AluminophosphateZeoliteEphedrinePseudoephedrineSupramolecularSelf-assemblyChirality
英文摘要: Abstract(#br)We present here a systematic study about the behavior of two diastereomeric chiral organic molecules, (1R,2S)-ephedrine and (1S,2S)-pseudoephedrine, for directing the crystallization of crystalline nanoporous aluminophosphates. We apply a combination of extensive synthetic experiments, characterization and molecular simulations in order to relate the different structure-directing effects of the two isomers experimentally observed with their particular molecular structure. Our results show a higher efficiency of pseudoephedrine to direct the crystallization of AFI materials: in contrast, ephedrine tends to give a layered-like phase with a strong supramolecular aggregation together with AFI materials. In addition, aggregation of ephedrine within the AFI channels is stronger...
全文获取路径: Elsevier  (合作)
影响因子:3.365 (2012)

  • ephedrine 麻黄碱
  • directing 引导的
  • structure 构造
  • effect 效应
  • during 在的期间