Through the challenging synthesis of tetraphenylporphyrin derivatives bearing nitroxide moieties

2019 ◽  
Vol 23 (04n05) ◽  
pp. 584-588
Author(s):  
Emel Önal ◽  
Ismail Fidan ◽  
Dominique Luneau ◽  
Catherine Hirel
Keyword(s):  
Para Position ◽  
Synthesis And Characterization ◽  
Free Base ◽  
Phenyl Substituent ◽  
Covalently Bonded ◽  
Convenient Preparation ◽  
Imino Nitroxide

Tetraphenylporphyrin derivatives a synthetic heterocycles with convenient preparation and a richness of properties which make them attractive in broad fields such as energy, life and materials sciences. Thus, in the quest for new radical architectures, tetraphenylporphyrins are prime candidates. To this end, we designed free-base tetraphenylporphyrins bearing nitronyl and imino nitroxide moieties covalently bonded to the para-position of the meso-phenyl substituent. Their detailed synthesis and characterization are reported here.

Synthesis and characterization of water-soluble free-base, zinc and copper porphyrin–oligonucleotide conjugates

2008 ◽  
Vol 16 (13) ◽  
pp. 6544-6551 ◽  
Author(s):  
Angela Mammana ◽  
Tomohiro Asakawa ◽  
Klaus Bitsch-Jensen ◽  
Amanda Wolfe ◽  
Saireudee Chaturantabut ◽  
...  
Keyword(s):  
Water Soluble ◽  
Synthesis And Characterization ◽  
Free Base ◽  
Copper Porphyrin ◽  
Oligonucleotide Conjugates

Synthesis and Characterization of Chiral Conducting Polymers Based on Polypyrrole

1997 ◽  
Vol 50 (9) ◽  
pp. 939 ◽  
Author(s):  
Fang Chen ◽  
Parveen Akhtar ◽  
Leon A. P. Kane-Maguire ◽  
Gordon G. Wallace
Keyword(s):  
Conducting Polymers ◽  
Propionic Acid ◽  
Spectroscopic Properties ◽  
Optically Active ◽  
Synthesis And Characterization ◽  
Chiroptical Properties ◽  
Covalently Bonded ◽  
Circular Dichroïsm ◽  
Ring Position

A range of optically active pyrrole monomers have been synthesized in which a chiral sub- stituent is covalently bonded either to the pyrrole N or C3 ring position, namely (–)-(1R)-4-methyl-N-(1-phenylethyl)pyrrole-3-carboxamide, (+)-(1S)-4-methyl-N-(1-phenylethyl)pyrrole-3-carboxamide, (–)-(1R)-4-methyl-N-(1-naphthylethyl)pyrrole-3-carboxamide, (+)-(1S)-4-methyl-N-(1-naphthylethyl)pyrrole-3-carboxamide, (+)-(2S)-2-(1H-pyrrol-1-yl)propionic acid, (+)-(1S)-N-(1-phenyl-ethyl)pyrrole, and (–)-(1R)-N-(1-phenylethyl)pyrrole. Their chiroptical properties have been established by circular dichroism spectroscopy. Electropolymerization of the three N-substituted pyrrole monomers provided films of chiral conducting polymers, whose electrical and spectroscopic properties are described. Although oxidation of the C3 substituted pyrrole monomers was also facile, electrodeposition was poor and films of the associated polymers could not be obtained.

One-pot synthesis and characterization of HMS silica carrying Disperse-Red-1 (DR1) covalently bonded to the inner surface

2005 ◽  
Vol 8 (3-4) ◽  
pp. 655-661 ◽  
Author(s):  
Barbara Onida ◽  
Luisa Borello ◽  
Sonia Fiorilli ◽  
Barbara Bonelli ◽  
Claudia Barolo ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
One Pot ◽  
One Pot Synthesis ◽  
Covalently Bonded ◽  
Inner Surface ◽  
Disperse Red 1

Synthesis and Characterization of Copper Undecaarylcorroles and the First Undecaarylcorrole Free Base

2012 ◽  
Vol 2012 (36) ◽  
pp. 5915-5920 ◽  
Author(s):  
Di Gao ◽  
Gabriel Canard ◽  
Michel Giorgi ◽  
Teodor Silviu Balaban
Keyword(s):  
Synthesis And Characterization ◽  
Free Base

Alkyl and Aryl Substituted Corroles. 1. Synthesis and Characterization of Free Base and Cobalt Containing Derivatives. X-ray Structure of (Me4Ph5Cor)Co(py)2

2001 ◽  
Vol 40 (19) ◽  
pp. 4845-4855 ◽  
Author(s):  
Roger Guilard ◽  
Claude P. Gros ◽  
Frédéric Bolze ◽  
François Jérôme ◽  
Zhongping Ou ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Free Base ◽  
X Ray

A Keggin-type Arsenotungstate Anion-supported Transition Metal Complex: Hydrothermal Synthesis and Characterization of [Fe(2,2′-bipy)3]1.5[AsWVI10WV2O40Fe(2,2′-bipy)2(H2O)] · 0.25H2O

2008 ◽  
Vol 63 (2) ◽  
pp. 183-186 ◽  
Author(s):  
Ming-Xue Li ◽  
Hong-Yu Niu ◽  
Wei Wang ◽  
Jing-Ping Wang
Keyword(s):  
Structural Unit ◽  
Transition Metal Complex ◽  
Esr Spectra ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Keggin Type ◽  
Covalently Bonded ◽  
Dta Analysis

A Keggin-type arsenotungstate anion-supported iron-bipyridine complex, [Fe(2,2'-bipy)3]1.5- [AsWVI10WV2O40Fe(2,2'-bipy)2(H2O)] · 0.25H2O, has been hydrothermally synthesized and characterized by IR and ESR spectra, TG-DTA analysis, and single crystal X-ray diffraction. Each structural unit of the title compound consists of one [AsWVI10WV2O40Fe(2,2'-bipy)2(H2O)]3− heteropolyanion, one and a half [Fe(2,2'-bipy)3]2+ cations, and a quarter of an H2O molecule. In the heteropolyanion the [Fe(2,2'-bipy)2(H2O)]2+ unit is covalently bonded to the reduced Keggin polyoxoanion [AsWVI10WV2O40]5−. The complex ismonoclinic, space group C2/c with a = 46.8079(13), b = 14.3990(4), c = 26.1085(8) Å , β = 90.00(5)°, Z = 8, Dc = 3.10 g/cm3

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