RSC Advances, ( ISI ), Volume (9), No (47), Year (2019-1) , Pages (27147-27156)

Title : ( Decorated single-enantiomer phosphoramide-based silica/magnetic nanocomposites for direct enantioseparation )

Authors: Fatemeh Karimi Ahamadabad , Mehrdad Pourayoubi , Hadi Bakhshi ,

Citation: BibTeX | EndNote

Abstract

The nano-composites Fe3O4@SiO2@(–O3Si[(CH2)3NH])P(═O)(NH-R(+)CH(CH3)(C6H5))2 (Fe3O4@SiO2@PTA(+)) and Fe3O4@SiO2@(–O3Si[(CH2)3NH])P(═O)(NH-S(–)CH(CH3)(C6H5))2 (Fe3O4@SiO2@PTA(–)) were prepared and used for the chiral separation of five racemic mixtures (PTA = phosphoric triamide). The separation results show chiral recognition ability of these materials with respect to racemates belonging to different families of compounds (amine, acid, and amino-acid), which show their feasibility to be potential adsorbents in chiral separation. The nano-composites were characterized by FTIR, TEM, SEM, EDX, XRD, and VSM. The VSM curves of nano-composites indicate their superparamagnetic property, which is stable after their use in the separation process. Fe3O4, Fe3O4@SiO2, Fe3O4@SiO2@PTA(+) and Fe3O4@SiO2@PTA(–) are regularly spherical with uniform shape and the average sizes of 17–20, 18–23, 36–47 and 43–52 nm, respectively.

Keywords

, Nano-composite, Single-enantiomer, Phosphoric triamide, Inorganic Polymer, Chiral Separation
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@article{paperid:1075601,
author = {Karimi Ahamadabad, Fatemeh and Pourayoubi, Mehrdad and هادی بخشی},
title = {Decorated single-enantiomer phosphoramide-based silica/magnetic nanocomposites for direct enantioseparation},
journal = {RSC Advances},
year = {2019},
volume = {9},
number = {47},
month = {January},
issn = {2046-2069},
pages = {27147--27156},
numpages = {9},
keywords = {Nano-composite; Single-enantiomer; Phosphoric triamide; Inorganic Polymer; Chiral Separation},
}

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%0 Journal Article
%T Decorated single-enantiomer phosphoramide-based silica/magnetic nanocomposites for direct enantioseparation
%A Karimi Ahamadabad, Fatemeh
%A Pourayoubi, Mehrdad
%A هادی بخشی
%J RSC Advances
%@ 2046-2069
%D 2019

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