A5012368264- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Organometallic Complex Synthesis and Catalysis
- Asymmetric Hydrogenation and Catalysis
- Metal complexes synthesis and properties
- Synthetic Organic Chemistry Methods
- Ferrocene Chemistry and Applications
- Crystal structures of chemical compounds
- Asymmetric Synthesis and Catalysis
- Catalytic Cross-Coupling Reactions
- Cyclopropane Reaction Mechanisms
- Crystallography and molecular interactions
- Synthesis and characterization of novel inorganic/organometallic compounds
- Magnetism in coordination complexes
- Chemical Synthesis and Analysis
- Coordination Chemistry and Organometallics
- Polyoxometalates: Synthesis and Applications
- Synthesis and Biological Evaluation
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Carbon dioxide utilization in catalysis
- Fluorine in Organic Chemistry
- Metal-Catalyzed Oxygenation Mechanisms
- Synthesis of heterocyclic compounds
- Synthesis and Reactions of Organic Compounds
- Organophosphorus compounds synthesis
Laboratoire de Chimie de Coordination
2016-2025
Centre National de la Recherche Scientifique
2016-2025
Université Toulouse III - Paul Sabatier
2015-2024
Université de Toulouse
2015-2024
Institut National Polytechnique de Toulouse
2013-2023
Centre Hospitalier Intercommunal Castres-Mazamet
2013
Shell (Netherlands)
2008
Universitat Autònoma de Barcelona
2008
Institut Universitaire de France
2008
A. N. Nesmeyanov Institute of Organoelement Compounds
2008
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAlcohol adducts of alkoxides: intramolecular hydrogen bonding as a general structural featureBrian A. Vaartstra, John C. Huffman, Peter S. Gradeff, Liliane G. Hubert-Pfalzgraf, Jean Claude Daran, Stephen Parraud, Kenan Yunlu, and Kenneth CaultonCite this: Inorg. Chem. 1990, 29, 17, 3126–3131Publication Date (Print):August 1, 1990Publication History Published online1 May 2002Published inissue 1 August...
The tris[(4-dimethylaminopyridyl)methyl]amine (TPMANMe2) as a ligand for copper-catalyzed atom transfer radical polymerization (ATRP) is reported. In solution, the [CuI(TPMANMe2)Br] complex shows fluxionality by variable-temperature NMR, indicating rapid exchange. solid state, [CuII(TPMANMe2)Br][Br] exhibits slightly distorted trigonal bipyramidal geometry (τ = 0.89). UV-vis spectrum of [CuII(TPMANMe2)Br]+ salts similar to those other pyridine-based ATRP catalysts. Electrochemical studies...
Air-stable neutral and cationic palladium complexes bearing chiral phosphine-N-heterocyclic carbene ligands with planar chirality only have been prepared in moderate to good yields characterized by NMR X-ray diffraction studies. They are shown catalyze the asymmetric coupling of aryl bromides arylboronic acids enantioselectivities (up 42% ee) low catalyst loadings (0.1−0.5 mol %).
A new family of lanthanide ionic complexes derived from chiral, substituted (R)-binaphthylamine ligands, [Li(thf)(4)][Ln{(R)-C(20)H(12)(NR)(2)}(2)] (Ln=Yb, Sm, Nd, or Lu), has been synthesized and characterized by X-ray crystal structure analyses. All have tested as catalysts for the hydroamination/cyclization 1-(aminomethyl)-1-allylcyclohexane. Ytterbium proved to be both most active enantioselective, use complex [Li(thf)(4)][Yb{(R)-C(20)H(12)(NC(3)H(7))(2)}(2)], bearing isopropyl radicals...
A new family of hexakis(ferrocenylethynyl)benzenes was synthesized by Negishi coupling from ethynylferrocenes and C(6)Br(6) can be reversibly oxidized to stable hexaferrocenium salts (see picture, Ar(F)=[3,5-C(6)H(3)(CF(3))(2)]). Their cyclic voltammograms show a single six-electron wave, three distinct two-electron waves, or cascade six single-electron depending on the electrolyte counterion number methyl substituents ferrocenyl groups.
"Click" reactions between ethynylferrocene and mono-, bis-, tris-azido aromatic derivatives yielded tris-1,2,3-ferrocenyltriazoles (1, 2, 3, respectively) as orange crystals. The X-ray crystal structure of the monoferrocenyltriazole compound 1 was solved with two nearly identical molecules within asymmetric unit. In both molecules, Cp rings make a tilt angle 2.1(3)° [0.7(3)°], they are roughly eclipsed twist 2.4(3)° [1.8(3)°]. Reaction [PdCl2(PhCN)2] in dimethylsulfoxide (DMSO) crystals...
ABSTRACT Tropical parasitic diseases like leishmaniasis pose significant public health challenges, impacting millions of individuals globally. Current drug treatments for these have notable drawbacks and side effects, underscoring the pressing need new medications with improved selectivity reduced toxicity. Through structural modifications both natural synthetic compounds using click chemistry, researchers been able to produce derivatives showing promising activity against parasites. In this...
The bis(dihydrogen) complex RuH2(H2)2(PCy3)2 (1) reacts with the disilanes (R2SiH)2X to produce dihydride complexes [RuH2{(η2-HSiR2)2X}(PCy3)2] (with R = Me and X O (2a), C6H4 (3), (CH2)2 (4), (CH2)3 (5), OSiMe2O (6)) Ph, (2b)). In these complexes, bis(silane) ligand is coordinated ruthenium via two σ-Si−H bonds, as shown by NMR, IR, X-ray data theoretical calculations. 3, 4, 6 were characterized diffraction. free Si−H bond distances JSi-H values are around 1.49 Å 200 Hz, respectively,...
The complexes (Li(THF)4)(Ln[(R)-C20H12N2(C10H22)]2) (Ln = Sm, Yb) have been synthesized, fully characterized and found to be efficient enantioselective catalysts for intramolecular hydroamination of 1-(aminomethyl)-1-allylcyclohexane.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComplementarity and internal consistency between magnetic optical properties for the manganese(II) copper(II) heterodinuclear compound [Mn(Me6-[14]ane-N4)Cu(oxpn)](CF3SO3)2 (Me6-[14]ane-N4 = (.+-.)-5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane; oxpn N,N'-bis(3-aminopropyl)oxamideCorine Mathoniere, Olivier Kahn, Jean Claude Daran, Harald Hilbig, Frank H. KoehlerCite this: Inorg. Chem. 1993, 32, 19, 4057–4062Publication Date...
Compound [Y(OC2H4OMe)3]10 was obtained either by direct attack on yttrium turnings 2-methoxyethanol in toluene or alcoholysis of Y5O(OPri)13; its X-ray structure analysis reveals a centrosymmetric cyclic arrangement 10 atoms, each these being hepta-co-ordinated.
The kinetics and mechanism of catalytic radical termination (CRT) n-butyl acrylate (BA) in MeCN the presence Cu complexes with tridentate tetradentate ligands was investigated both theoretically experimentally. TPMA, TPMA*1, TPMA*2, TPMA*3, newly synthesized N-propyl-N,N-bis(4-methoxy-3,5-dimethylpyrid-2-ylmethyl)amine (BPMA*Pr) as well BPMAMe were used ligands. L/CuIIX2 (X = Cl or OTf) characterized by cyclic voltammetry (CV), UV–vis–NIR, X-ray diffraction. Polymerization BA initiated...
A series of chiral enantiomerically pure analogues (E)-(2-(4-nitrophenyl)ethenyl)ferrocene (2), substituted by R (3, = Me; 4, CH2OH; 5, SiMe3), in the 2-position on cyclopentadienyl ring, were synthesized. Measurements electric-field-induced second-harmonic generation (EFISH) and calculations INDOS/CI-SOS show that different chromophores have closely related molecular NLO responses. However, crystal packings for compounds, observed X-ray diffraction a monocrystal, are completely different....
A simple and efficient synthetic method to polyaza heterocyclic structures containing 1,3-pyrimidine units has been developed. It is based on the reaction of enaminones such as 5, 7 9 with appropriate carboxamidines under basic conditions. By this procedure several new heterocycles have prepared in good yields.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReaction of aminocarbene complexes chromium with alkynes. 1. Formation and rearrangement ketene nitrogen ylide complexesEvelyne Chelain, Regis Goumont, Louis Hamon, Andree Parlier, Michele Rudler, Henri Jean Claude Daran, Jacqueline VaissermannCite this: J. Am. Chem. Soc. 1992, 114, 21, 8088–8098Publication Date (Print):October 1, 1992Publication History Published online1 May 2002Published inissue 1 October...
Enantiomerically pure, chiral terpyridyl-type ligands L1 ('dipineno'-[5,6∶5″,6″]-fused 2,2′∶6′,2″-terpyridine) and L2 ('dipineno'-[4,5∶4″,5″]-fused have been synthesized in high yields starting from 2,6-diacetylpyridine enantiopure α-pinene. Complexes of with RhIII RuII prepared studied spectroscopically. The complexes [Ru(L)2][PF6]2 (L = or L2) were obtained using microwave heating ethylene glycol as solvent. rhodium(III) ruthenium(II) a helically distorted terpyridyl moiety, shown by the...
The molybdenum(III) coordination complexes MoX(3)(PMe(3))(3) (X = Cl, Br, and I) are capable of controlling styrene polymerization under typical atom transfer radical (ATRP) conditions, in conjunction with 2-bromoethylbenzene (BEB) as an initiator. process is accelerated by the presence Al(OPr(i))(3) a cocatalyst. Electrochemical synthetic studies aimed at identifying nature spin trap have been carried out. cyclic voltammogram shows partial reversibility (increasing order Cl < Br for...
The reactions between alkynes and the chloride-bridged cyclopalladated dimers derived from orthopalladation of acetanilide, [{P[graphic omitted])}2(µ-Cl)2](1), amidine, omitted]Ph)}2(µ-Cl)2](2), afforded organometallic products in which one, two, or three had been inserted into Pd–C bonds (1) (2), ratio alkyne : palladium final being independent stoicheiometry reaction. Compound gave with hexafluorobut-2-yne mono-inserted product omitted])](µ-Cl)}2]. With diphenylacetylene it an unstable (7)...