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RISrac-Phenyl (benzylamido)(p-tolylamido)-phosphinate
The title compound, C20H21N2O2P, was synthesized from (RS)-(C6H5O)P(O)Cl(NHC6H4-p-CH3) and benzylamine. The product crystallizes as a racemate in a polar space group. The phosphorus atom has a distorted tetrahedral ...
همنهشت، ساختار بلوری و آنالیز سطح هیرشفلد نمک اسیدی [4-متیل فنیل آمونیوم][(O-فنیل)(هیدروکسیل)فسفات]، [4-CH3-C6H4NH3][(C6H5O)P(O)(O)(OH)]
همنهشت (سنتز) و آنالیز با پراش پرتو X نمک اسیدی [4-متیل فنیل آمونیوم][(O-فنیل)(هیدروکسیل)فسفات]، [4-CH3-C6H4NH3][(C6H5O)P(O)(O)(OH)]، گزارش شده اند. این ترکیب در سیستم بلوری تک میل، گروه فضایی P21/c (Å (4)5147/9a = ، ...
Novel Keggin-type polyoxometalate nanocatalysts for Michael addition polymerizations
Keggin-type polyoxometalate (POM) nanoparticles based on [PW12O40]3- and [SiW12O40]4- with Ag and (ZrO)2+ cations were prepared under ultrasound irradiation. The results of SEM and XRD revealed the average size of particles ...
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 ...
Decorated single-enantiomer phosphoramide-based silica/magnetic nanocomposites for direct enantioseparation
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 ...
Synthesis, crystal structure and Hirshfeld surface analysis of rac-(C6H5O)(cyclo-C6H11NH)P(O)NH(2, 2 (CH3)2C3H4)NHP(O)(OC6H5)(NH-cyclo-C6H11) mixed-amidophosphinate
A new racemic compound, (C6H5O)(cyclo-C6H11NH)P(O)NH(2, 2 (CH3)2C3H4)NHP(O)(OC6H5)(NH-cyclo-C6H11), was synthesized and characterized by 31P, 13C, 1H NMR and IR spectroscopies and single-crystal X-ray determination. The ...
New single-enantiomer, racemic and diastereomer phosphorus-nitrogen compounds
Chirality (handedness) is ubiquitous in nature at the molecular level. Many essential biochemical substances such as natural amino acids are chiral. In recent years, the optically active compounds have attracted remarkably ...
Novel 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) ...
A new phosphoric triamide structure: (CF3C(O)NH)P(O)(NHC6H4-4-CH3)2
The synthesis, spectroscopic characterization (1H-, 13C-, 31P-, 19F-NMR, IR and mass) and single crystal X-ray diffraction analysis of (CF3C(O)NH)P(O)(NHC6H4-4-CH3)2 were investigated. The compound was crystallized in the ...
O-Phenyl (tert-butylamido)(p-tolylamido) phosphinate
In the title molecule, C17H23N2O2P, the P atom has a distorted tetrahedral environment. The P—N bond to the tolylamido fragment is 1.642 (4) Å while that to the butylamido fragment is 1.629 (3) Å. The dihedral angle between ...