Author: Marcos Flores-alamo

0000000001299193

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Marcos Flores-alamo

showing 12 related works from this author

Oxygen Transfer from Trimethylamine N-oxide to CuI Complexes Supported by Pentanitrogen Ligands

2020

[N,N-bis(1-methyl-2-benzimidazolyl)methyl-N-(bis-2-pyridylmethyl)amine] ( L 1 ) and [N,N-bis(2-quinolylmethyl)-N-bis(2-pyridyl)methylamine] ( L 2 ) were employed to prepare Cu II and Cu I complexes for spectroscopic and structural characterization. [ L 1 Cu II (H 2 O)](NO 3 ) 2 and [ L 2 Cu II (NO 3 )]NO 3 have Jahn-Teller distorted octahedral geometries, and give rise to isotropic EPR spectra in frozen solution. [ L 1 Cu I (CH 3 CN)]OTf and [ L 2 Cu I (CH 3 CN)]OTf have distorted trigonal bipyramidal and tetrahedral solid-state structures, respectively. The N-donors display labile behavior in solution, based on variable-temperature 1 H NMR studies. Addition of trimethylamine N-oxide (Me …

oxido transferhapetusoxidationcopperkupariliganditkompleksiyhdisteetnitrogen ligandsC-H activation

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Oxygen Transfer from Trimethylamine N ‐Oxide to Cu I Complexes Supported by Pentanitrogen Ligands

2020

[N,N-bis(1-methyl-2-benzimidazolyl)methyl-N-(bis-2-pyridylmethyl)amine] (L1) and [N,N-bis(2-quinolylmethyl)-N-bis(2-pyridyl)methylamine] (L2) were employed to prepare CuII and CuI complexes for spectroscopic and structural characterization. [L1CuII(H2O)](NO3)2 and [L2CuII(NO3)]NO3 have Jahn–Teller distorted octahedral geometries and give rise to isotropic EPR spectra in frozen solution. [L1CuI(CH3CN)]OTf and [L2CuI(CH3CN)]OTf have distorted trigonal bipyramidal and tetrahedral solid-state structures, respectively. The N-donors display labile behavior in solution, based on variable-temperature 1H NMR studies. Addition of trimethylamine N-oxide (Me3NO) to solutions of [L1CuI(CH3CN)]OTf and [L…

010405 organic chemistryMethylamineTrimethylamine010402 general chemistry01 natural sciences0104 chemical sciencesAdductlaw.inventionInorganic ChemistryCrystallographychemistry.chemical_compoundTrigonal bipyramidal molecular geometrychemistryOctahedronlawProton NMRElectron paramagnetic resonanceAcetonitrileEuropean Journal of Inorganic Chemistry

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A new N6 hexadentate ligand and a novel heptacoordinated N6O-type Fe(III) compounds: Synthesis, characterization and structure of [Fe(dimpyen)(OH)](A…

2011

Abstract In this contribution, we report the syntheses of a novel N6 donor set ligand, dimpyen = N1,N2-di[(1-methyl-1H-2-imidazolyl) methyl]-N1,N2-di(2-pyridilmethyl)-1,2-ethanediamine. This type of ligand was designed to modulate the properties of the metal ions bound to it. The reaction with Fe(II) gives off a new heptacoordinated iron(III) complex. We study the spectroscopic (UV–Vis), magnetic and electrochemical behavior and also made the structural determination with X-ray diffraction at 134 K and a heptacoordinated N6O-type derivative of Fe(III) is reported as well. This complex crystallize as perchlorate or hexafluorophosphate and the formula of these derivatives are [Fe(dimpyen)(OH)…

LigandMetal ions in aqueous solutionInorganic chemistryCrystal structureElectrochemistryInorganic Chemistrychemistry.chemical_compoundPerchlorateCrystallographyPentagonal bipyramidal molecular geometrychemistryOctahedronHexafluorophosphateMaterials ChemistryPhysical and Theoretical ChemistryInorganica Chimica Acta

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Spin crossover behavior in a series of iron(III) alkoxide complexes.

2015

The synthesis, crystal structures, magnetic behavior, and electron paramagnetic resonance studies of five new FeIII spin crossover (SCO) complexes are reported. The [FeIIIN5O] coordination core is constituted of the pentadentate ligand bztpen (N5) and a series of alkoxide anions (ethoxide, propoxide, n-butoxide, isobutoxide, and ethylene glycoxide). The methoxide derivative previously reported by us is also reinvestigated. The six complexes crystallize in the orthorhombic Pbca space group and show similar molecular structures and crystal packing. The coordination octahedron is strongly distorted in both the high- and low-temperature structures. The structural changes upon spin conversion ar…

FE(3-OET-SALAPA)2>(CLO4).SInorganic chemistryFERRIC COMPLEXESCrystal structureMethoxideLIGAND; SYSTEMMAGNETIC-SUSCEPTIBILITYlaw.inventionInorganic Chemistrychemistry.chemical_compoundlawSpin crossoverPhysical and Theoretical ChemistryElectron paramagnetic resonanceSchiff baseLigandIRONCrystallographySOLID-STATEchemistryFISICA APLICADAAlkoxideMOSSBAUEROrthorhombic crystal systemPHASE-TRANSITIONSLIGANDSYSTEMSOLVATEInorganic chemistry

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Crystal structure of the chalcone (E)-3-(furan-2-yl)-1-phenylprop-2-en-1-one

2015

The crystal packing of the compound is described by an intermolecular arrangement with the molecules as interlaced layers in a zigzag fashion, denoting interacting self-complementary dimers mainly by the localization of weak hydrogen bonds in a head-to-tail arrangement.

chemistry.chemical_classificationChalconecrystal structureCrystallographyDouble bondHydrogen bondChemistryStereochemistryClaisen–Schmidt reactionbiological activityGeneral ChemistryCrystal structureCondensed Matter PhysicsRing (chemistry)hydrogen bondingAcceptorResearch CommunicationsCrystalchemistry.chemical_compoundCrystallographychalcone derivativezigzag fashion.QD901-999FuranGeneral Materials ScienceActa Crystallographica Section E: Crystallographic Communications

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