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RISNovel Chiral Phosphoramide-Modified Hybrid Magnetic Fe3O4/Silica Nanoparticles for Direct Enantioseparation
The nano-magnetic chiral selectors PR(+)Si–MSNPs and PS(–)Si–MSNPs were prepared by single-enantiomer compounds P(=O)((NH-R-(+)CH(CH3)C6H5)2(NH(CH2)3Si(OCH3)3) (1) and P(=O)((NH-R-(–)CH(CH3)C6H5)2(NH(CH2)3Si(OCH3)3) (2) supported on the Fe3O4@SiO2...
Synthesis and spectroscopic characterization of two pairs of phosphoric triamide enantiomers
Many chiral phosphorus compounds have been synthesized and used in different scientific domains such as medicine [1] and enantioselective catalysts [2], however few number of chiral phosphoric triamides were investigated [3]. In this study, two...
Chiral phosphoric triamide‐based polymers for enantioseparation
Novel optical isomers of phosphoramide-methacrylate monomers were synthesized and used for the preparation of corresponding polymers and hydrogels as chiral absorbents. In order to direct enantioseparation, two simple and inexpensive methods were...
Investigating the Ibuprofen Chiral Forms Interactions with Single Wall Carbon Nanotube
The aim of this study is investigating the transport mechanism of ibuprofen chiral isomers inside single
wall carbon nano tube (SWCNT) using mathematical modeling. To achieve this goal, molecular dynamics
simulation has been performed...
High-performance liquid chromatographic enantioseparation of drugs containing multiple chiral centers on chiral stationary phases
Chromatography is a very useful method
for the direct separation of enantiomers. However, about 30−40 years ago, commercially
available chiral stationary phases were very limited. Researchers developed many novel chiral
stationary phases...
َ A novel synthesis of chiral triazolo peteridine heterocyclic systems by using amino acids
A novel synthesis of chiral triazolo peteridine heterocyclic systems by using amino acids were described...
Synthesis, spectroscopic characterization and crystal structure of a new chiral amidophosphoester
The chiral amidophosphoester families have found widespread use in the preparation of different classes of drugs, and for processing of biologically active compounds [1]. We report here the synthesis of single-enantiomer amidophosphoester (C6H5O)2P...
Gluon parton density in the chiral quark model
Dynamical chiral symmetry breaking is one of the most important properties of low energy QCD. The breaking pattern has a profound impact on phenomenological quantities. Here we extend the idea of the meson cloud approach
in the chiral quark...
The joining of graphene sheets under Ar ion beam irradiation
Investigating the interactions of the enantiomers of phenylglycine with nanopores of ZSM-5 zeolite
In this study, molecular dynamics simulation has been used to investigate the interactions of both chiral forms of Phenylglycine amino acid (R- and S- isomers) with micropores of ZSM5-zeolite. Calculated results show that Phenylglycine molecules...