1332604-97-3Relevant academic research and scientific papers
The first example of cofacial bis(dipyrrins)
Deschamps, Jude,Chang, Yi,Langlois, Adam,Desbois, Nicolas,Gros, Claude P.,Harvey, Pierre D.
, p. 5835 - 5845 (2016)
Two series of cofacial bis(dipyrrins) were prepared and their photophysical properties as well as their bimolecular fluorescence quenching with C60 were investigated. DFT and TDDFT computations were also performed as a modeling tool to address the nature of the fluorescence state and the possible inter-chromophore interactions. Clearly, there is no evidence for such interactions and the bimolecular quenching of fluorescence, in comparison with mono-dipyrrins, indicates that C60-bis(dipyrrin) contacts occur from the outside of the "mouth" of the cofacial structure.
Dipyrrinphenol-Mn(iii) complex: Synthesis, electrochemistry, spectroscopic characterisation and reactivity
El Ghachtouli, Sanae,Wojcik, Karolina,Copey, Laurent,Szydlo, Florence,Framery, Eric,Goux-Henry, Catherine,Billon, Laurianne,Charlot, Marie-France,Guillot, Regis,Andrioletti, Bruno,Aukauloo, Ally
, p. 9090 - 9093 (2011)
Herein, we report the manganese complex with a novel trianionic ligand, the pentafluorophenyldipyrrinphenol ligand DPPH3. The X-ray crystal structure reveals that the MnIII complex exists in a dimeric form in the solid state. Electrochemical studies indicate two quasi-reversible one electron oxidation processes. EPR data on the one electron oxidised species in solution support the formation of a monuclear Mn complex with an S = 3/2 spin system. Preliminary studies towards epoxidation reactions were tested in the presence of iodosylbenzene (PhIO) and are in favour of an oxygen-atom-transfer (OAT) reaction catalyzed by the MnIII complex.
Ligand Noninnocence in Cobalt Dipyrrin-Bisphenols: Spectroscopic, Electrochemical, and Theoretical Insights Indicating an Emerging Analogy with Corroles
Shan, Wenqian,Desbois, Nicolas,Pacquelet, Sandrine,Stéphane Brandès,Rousselin, Yoann,Conradie, Jeanet,Ghosh, Abhik,Gros, Claude P.,Kadish, Karl M.
, p. 7677 - 7689 (2019/01/25)
Three cobalt dipyrrin-bisphenol (DPPCo) complexes with different meso-aryl groups (pentafluorophenyl, phenyl, and mesityl) were synthesized and characterized based on their electrochemistry and spectroscopic properties in nonaqueous media. Each DPPCo unde
Synthesis, solid-state analyses, and anion-binding properties of meso-aryldipyrrin-5,5′-diylbis(phenol) and -bis(aniline) ligands
Copey, Laurent,Jean-Gerard, Ludivine,Framery, Eric,Pilet, Guillaume,Andrioletti, Bruno
, p. 4759 - 4766 (2014/08/05)
The design of new molecular scaffolds for the selective recognition or transport of anions is often critical, because subtle changes in the substitution pattern may drastically impact the targeted properties. Herein, detailed spectroscopic and X-ray crystal-structure analyses were used to investigate the effect of the substitution pattern of a new series of N 2O2 or N4 anion sensors. Our study evidences two distinct in-in and in-out conformations depending on the nature of the substituent (e.g., phenol vs. aniline). Interestingly, because of intramolecular hydrogen bonds involving the -OH or the -NH2 functions, the dipyrrin subunit only acts as a scaffold and does not participate in the anion binding. Furthermore, the nature of the meso substituent was not critical, as similar binding affinities were measured for meso-C6H5 or meso-C6F5 ligands. Hence, the meso position can be further modified without any noticeable changes to the electron density on the dipyrromethene subunit.
