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39 results on '"Carlier, Roger"'

2. Cyclic vinylogous TTF: A potential molecular clip triggered by electron transfer

Author

Guerro, Michel, Carlier, Roger, Boubekeur, Kamal, Lorcy, Dominique, and Hapiot, Philippe

Subjects
Oxidation-reduction reaction -- Methods, Electron transport -- Research, Chemistry
Abstract

Cyclic vinylogous tetrathiafulvalenes (TTFs) where the two dithiole rings are linked through the outer sulfur atoms with an alkyl chain of various lengths were synthesized by oxidative intramolecular coupling of bis (dithiafulvenes). This additional steric strain induces an opposite conformational change upon oxidation to the stretch one observed for the unlinked vinylogous TTFs.

Published
2003

3. Facile synthesis of N,N'-ethylenebisthiazolium salts: precursors of dithiadiazafulvalenes

Author

Guerin, David, Carlier, Roger, and Lorcy, Dominique

Subjects
Vitamin B1 -- Physiological aspects, Organic compounds -- Synthesis, Oxidation-reduction reaction -- Analysis, Electrochemical analysis -- Research, Biological sciences, Chemistry
Abstract

Research demonstrates synthesis of several N,N'-ethylenebisthiazolium salt, precursors of dithiadiazafulvalenes, and their functionalization by metlation. Implications of the redox characteristics of the precursors in the reaction mechanism are discussed.

Published
2000

5. Formation of attractive pi-redox cyclophanes

Author

Hascoat, Philippe, Lorcy, Dominique, Robert, Albert, Carlier, Roger, Tallec, Andre, Boubekeur, Kamal, and Batail, Patrick

Subjects
Organic compounds -- Research, Crown ethers -- Analysis, Cyclophanes -- Analysis, Biological sciences, Chemistry
Abstract

A novel method of synthesizing related cage molecules and macrocyclophanes was developed through the use of the same technique for synthesizing TTF vinylogues. The design utilized bis(1,4-dithiafulvenes) as primary substrates. The intermediate underwent the same redox behavior as with 1,4-diathiafulvenes.

Published
1997

9. Complexing ability of the versatile, redox-active 3-[3-(diphenylphosphino)propylthio]-3',4,4'-trimethyl-tetrathiafulvalene ligand

Author

Pellon, Pascal, Gachot, Gregory, Le Bris, Jerome, Marchin, Stephane, Carlier, Roger, and Lorcy, Dominique

Subjects
Chemistry, Inorganic -- Research, Inorganic compounds -- Composition, Oxidation-reduction reaction -- Analysis, Ligands, Chemistry
Abstract

Research has been conducted on a ligand with tetrathiafulvalene moiety as electroactive core. The synthesis of this ligand is described.

Published
2003

10. Cu (super)II coordination complex involving TTF-py as ligand

Author

Iwahori, Fumiyasu, Golhen, Stephane, Ouahab, Lahcene, Carlier, Roger, and Sutter, Jean-Pascal

Subjects
Chemistry, Inorganic -- Research, Copper -- Physiological aspects, Ligands -- Physiological aspects, Pyridine -- Physiological aspects, Transition metals -- Physiological aspects, Coordination compounds -- Physiological aspects, Chemistry
Abstract

Research has been conducted on the C (super)II coordination complex. The preparation of this complex based on the ability of the pyridine-based organic ligands to coordinate transition metals has been carried out and the results of the synthesis, X-ray structure and electrochemical properties of the complex are reported.

Published
2001

32. Synthesis, crystal structure and electrochemical properties of [NBu4][Ni(mdt)2]: a potential precursor for new materials (mdt 4;= 4;1,3-dithiole-4,5-dithiolate)

Author

S. J. Veldhuizen, Yvonne, Veldman, Nora, L. Spek, Anthony, Cassoux, Patrick, Carlier, Roger, J. J. Mulder, Martijn, G. Haasnoot, Jaap, and Reedijk, Jan

Abstract

Reaction of methylenedithio-1,3-dithiol-2-one with sodium methanolate resulted in the anionic ligand mdt2– (mdt 4;= 4;1,3-dithiole-4,5-dithiolate) which has been co-ordinated to nickel. The salt [NBu4][Ni(mdt)2] was successfully crystallised and its crystal structure showed that the Ni(mdt)2 unit is significantly distorted from planarity. Electrochemical studies showed that [NBu4][Ni(mdt)2] can be further oxidised in two steps via the neutral [Ni(mdt)2] complex to a partially oxidised positively charged complex. The neutral complex has also been successfully synthesized by oxidation with TCNQ. The redox potential of the oxidation from the neutral to the partially oxidised positive Ni(mdt)2 complex is relatively low, +0.60 V, making this compound a promising precursor for the preparation of conducting materials, based on derived cation radical salts.

Published
1998
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