0000000000115992

AUTHOR

Zakaria Halime

0000-0003-3080-9727

showing 2 related works from this author

Influence of Pendant Arms Bearing Ligating Groups on the Structure of Bismuth Porphyrins: Implications for Labeling Immunoglobulins Used in Medical A…

2004

International audience; The synthesis of two picket bismuth(III) porphyrins is reported, and their crystal structures are compared. The influence of the nature of the pickets, as well as their number, is discussed in terms of stability, kinetics of metalation, structure, and distortion of the porphyrin. Unexpectedly, the resultsindicate that the coordination sphere of bismuth is not affected by different types of distortion nor is the stability of the complex. For both types of complexes, the X-ray crystallography revealed that a single arm is actually in direct interaction with the bismuth cation, thereby allowing furtherfunctionalization on the porphyrin core as the linkage with immunoglo…

Coordination spherePorphyrinsMetalationStereochemistryKineticsBiomedical EngineeringPharmaceutical Sciencechemistry.chemical_elementImmunoglobulinsBioengineeringCrystal structure010402 general chemistryCrystallography X-RayLigands01 natural sciences[ CHIM ] Chemical SciencesBismuthchemistry.chemical_compound[CHIM]Chemical SciencesBismuth cationPharmacologyStaining and Labeling010405 organic chemistryChemistryOrganic ChemistryPorphyrin0104 chemical sciences3. Good healthCrystallographySurface modificationBismuthBiotechnology
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Functionalization of Porphyrins: Mechanistic Insights, Conformational Studies, and Structural Characterizations

2006

The condensation of 3-chloromethylbenzoyl chloride with three atropisomers of meso-5,10,15,20-tetrakis(2-aminophenyl)porphyrin (TAPP) is reported, followed by the reaction of the anion of diethyl malonate to prepare various strapped porphyrins. According to two different geometries of the straps, the resulting preorganization of the hanging ethoxycarbonyl groups is more or less adapted to the coordination of cations such as lanthanides. The conformational study, as well as the X-ray structures of three strapped porphyrins, demonstrate that among the three atropisomers investigated in this work, only two of them lead to strapped porphyrins in which an ethoxycarbonyl group is directed towards…

Cation bindingAtropisomer010405 organic chemistryStereochemistryOrganic Chemistry010402 general chemistry[ CHIM ] Chemical Sciences01 natural sciencesPorphyrin0104 chemical sciencesDiethyl malonatechemistry.chemical_compoundchemistryPolymer chemistry[CHIM]Chemical SciencesSurface modificationPhysical and Theoretical ChemistryComputingMilieux_MISCELLANEOUSEuropean Journal of Organic Chemistry
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