A5050930123- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Magnetism in coordination complexes
- Asymmetric Hydrogenation and Catalysis
- Molecular Junctions and Nanostructures
- Crystallography and molecular interactions
- Surface Chemistry and Catalysis
- Lanthanide and Transition Metal Complexes
- Metal complexes synthesis and properties
- Porphyrin and Phthalocyanine Chemistry
- Chemical Synthesis and Analysis
- Catalytic C–H Functionalization Methods
- Organometallic Complex Synthesis and Catalysis
- Metal-Organic Frameworks: Synthesis and Applications
- Ferrocene Chemistry and Applications
- Graphene research and applications
- Electron Spin Resonance Studies
- Catalytic Cross-Coupling Reactions
- Metal-Catalyzed Oxygenation Mechanisms
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Asymmetric Synthesis and Catalysis
- Photochromic and Fluorescence Chemistry
- Surface and Thin Film Phenomena
- Chemical Synthesis and Reactions
- Cyclopropane Reaction Mechanisms
Centre National de la Recherche Scientifique
2014-2025
Laboratoire de Chimie de Coordination
2014-2025
Université de Toulouse
2015-2021
Université Toulouse III - Paul Sabatier
2001-2019
Institut de Chimie de Strasbourg
2010-2019
Université de Strasbourg
2010-2019
University of Puerto Rico at Carolina
2019
Laboratoire de Chimie
2016-2018
Institut de Chimie
2013-2018
Institut National Polytechnique de Toulouse
2007-2015
Abstract The Fe(II) spin crossover complex [Fe{H 2 B(pz) } (bipy)] (pz = pyrazol‐1‐yl, bipy 2,2′‐bipyridine) can be locked in a largely low‐spin‐state configuration over temperature range that includes temperatures well above the thermal of 160 K. This locking state is achieved for nanometer thin films this two distinct ways: through substrate interactions with dielectric substrates such as SiO and Al O 3 , or powder samples by mixing strongly dipolar zwitterionic p ‐benzoquinonemonoimine C...
Abstract Temperature measurement at the nanoscale is of paramount importance in fields nanoscience and nanotechnology, calls for development versatile, high-resolution thermometry techniques. Here, working principle quantitative performance a cost-effective nanothermometer are experimentally demonstrated, using molecular spin-crossover thin film as surface temperature sensor, probed optically. We evidence highly reliable thermometric (diffraction-limited sub-µm spatial, µs temporal 1 °C...
Starting from [{Rh(cod)Cl}(2)] and 1,3-dimesitylimidazole-2-ylidenes the novel [RhCl(cod)(carbene)] complexes 1-5 have been synthesized, characterized, tested in hydroaminomethylation of aromatic olefins. The influence different ligands reaction parameters on catalytic activity was investigated detail applying 1,1-diphenylethylene piperidine as a model system. scope limitations catalysts is shown preparation 16 biologically active 1-amino-3,3-diarylpropenes. In general, high chemo-...
Iron(ic) phosphination: The iron-promoted hydrophosphination of alkenyl arenes with diphenylphosphine as the phosphinating agent has been established. This method provides efficient access to diarylalkylphosphines. regioselectivity reaction can be fine-tuned by choice iron salts, offering highly selective both β and α adducts (see scheme). As a service our authors readers, this journal supporting information supplied authors. Such materials are peer reviewed may re-organized for online...
Polymer‐based composite films represent a promising approach for developing recyclable catalysts. In this study, [Fe(NH2trz)3](NO3)2 @TPU film with spin crossover properties was fabricated using the blade casting method. Various characterisation techniques confirmed uniform distribution of particles within TPU matrix, while maintaining spin‐crossover embedded complex. The exhibited excellent catalytic efficiency and reusability in acetalization reaction, enabling efficient catalysis up to 11...
The iron(II) spin-crossover complex ([Fe(NH2trz)3](NO3)2) catalyzes the formation of imine from 4-amino-1,2,4-triazole. proposed catalytic mechanism involves two sequential post-synthetic modification (PSM) reactions. In first PSM, an is formed through interaction amine with aldehyde. second reacts aminotriazole, resulting in release into solution and regeneration complex. More information can be found Research Article by L. Routaboul, A. Bousseksou co-workers (DOI: 10.1002/chem.202403412).
The role of dipole-dipole interactions in the self-assembly dipolar organic molecules on surfaces is investigated. As a model system, strongly molecules, p-benzoquinonemonoimine zwitterions (ZI) type C6H2(⋯ NHR)2(⋯ O)2 crystalline coinage metal were investigated with scanning tunneling microscopy and first principles calculations. Depending substrate, assemble into small clusters, nano gratings, stripes, as well two-dimensional islands. alignment molecular dipoles those assemblies only...
The adsorption of molecular films made small molecules with a large intrinsic electrical dipole has been explored. data indicate that such dipolar may be used for altering the interface screening at metal electrode in organic electronics. More specifically, we have investigated surface electronic spectroscopic properties zwitterionic containing 12π electrons p-benzoquinonemonoimine type, C6H2(···NHR)2(···O)2(R = H (1), n-C4H9 (2), C3H6–S–CH3 (3), C3H6–O–CH3 (4), CH2–C6H5 (5)), adsorbed on...
The electrochemical behavior of a dinuclear arene ruthenium complex containing zwitterionic bridging ligand and hexacationic metalla-prism obtained from the assembly three zwitterion-bridged units two tridentate panels has been investigated. encapsulation coronene in hydrophobic cavity stabilizes subsequently modifies redox potentials hexanuclear metalla-prism.
The permanent dipole of quinonoid zwitterions changes significantly when the molecules adsorb on Ag(111) and Cu(111) surfaces. STM reveals that sub-monolayers adsorbed can exhibit parallel alignment Ag(111), in strong contrast with antiparallel ordering prevailing crystalline state retrieved surfaces, which minimizes dipoles electrostatic interaction energy. DFT shows rearrangement electron density upon adsorption is a result donation from molecular HOMO to surface, back LUMO concomitant...
UV irradiation in the presence of thiol enables performance highly efficient aliphatic amines racemization, under mild conditions at 30 °C. The reaction proceeds via reversible generation prochiral α-aminoalkyl radicals. latter may result either from a redox process between thiyl radical and amine or direct hydrogen atom abstraction by radical. As donor, plays crucial role. While racemization both primary secondary were fast processes, tertiary was sluggish. A tentative rationale is based on...
We have investigated the interaction and orientation of a strongly dipolar zwitterionic p-benzoquinonemonoimine-type molecule, with large intrinsic dipole 10 Debye, on both conducting polar insulating substrates. Specifically, we deposited (6Z)-4-(butylamino)-6-(butyliminio)-3-oxocyclohexa-1,4-dien-1-olate C6H2(NHR)2(O)2 where R = n-C4H9, gold ferroelectric lithium niobate surfaces. An influence transient static electric dipoles adsorbate has been observed. For adsorption gold, find that...
The introduction of photoactive guest molecules into a spin crossover 3D metal organic framework alters the switchable properties both host and guest.
The large intrinsic electric dipole of about 10 D a p-benzoquinonemonoimine compound from the class N-alkyldiaminoresorcinone (or 4,6-bisdialkylaminobenzene-1,3-diones, i.e., C6H2(··· NHR)2(··· O)2, where R = H) zwitterions is reduced considerably upon adsorption on Au(111) substrates. Scanning tunneling microscopy images reveal parallel alignment adsorbed molecules within extended islands, leading to formation polarized domains. This in contrast typical antiparallel found bulk....
The <italic>N</italic>-substituent on quinonoid zwitterions influences the molecules packing and impacts their anchoring gold surfaces.
The post-synthetic reaction between p-anisaldehyde and the spin-crossover compound [Fe(NH2-trz)3](NO3)2 was explored, obtaining different degrees of transformation from 23% to full conversion by varying time. SCO complexes obtained were studied magnetometry, powder X-ray diffraction (PXRD), elemental analysis, solid state NMR IR compared with corresponding compounds direct synthetic routes, revealing new spin crossover properties.
A wavelength-tunable optical cavity was constructed using spin crossover molecules.