0000000000347118

AUTHOR

Julio Belmar

showing 3 related works from this author

Structural changes in the crystal packing of highly hindered symmetrical vicinal bis-amides

2007

The crystal structures of 1,4-bis(3,5-di-tert-butyl-2-hydroxybenzamido)butane (1) and 1,3-bis(3,5-di-tert-butyl-2-hydroxybenzamido)-2,2-dimethylpropane (2) have being characterized by single crystal X-ray diffraction. Their crystal packing is discussed in terms of the different interactions they exhibit. A brief discussion, based on hydrogen bonds, on the structural features of bis-(3,5-di-tert-butyl-2-hydroxybenzamide) compounds is carried out.

DiffractionCrystalCrystallographychemistry.chemical_compoundChemistryHydrogen bondGeneral Materials ScienceButaneGeneral ChemistryCrystal structureCondensed Matter PhysicsSingle crystalVicinalCrystEngComm
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Crystal structure analysis of supramolecular arrangements in bis(1-isoquinolinecarboxamide)alkanes and their Ag(i) complexes

2017

A homologous series of bis(1-isoquinolinecarboxamide)alkane derivatives (3a–f) with two to seven carbon atoms in the alkyl bridge and their Ag(I) complexes (4a–f) have been synthesized. Four ligand and five Ag(I) complex crystal structures were obtained by single crystal X-ray diffraction and analyzed in terms of: a) their structural patterns based on intra- and intermolecular hydrogen bonds which were compared to those of bis(2-quinolinecarboxamide)alkanes (1n) and bis(6-quinolinecarboxamide)alkanes (2n) attending to specific geometrical parameters and b) the Ag(I) coordinate bond effect on these patterns and the amide-to-amide hydrogen bonds. The crystal structures of the ligands 3a, 3c, …

chemistry.chemical_classificationAlkane010405 organic chemistryLigandHydrogen bondStereochemistrySupramolecular chemistryGeneral ChemistryCrystal structure010402 general chemistryCondensed Matter Physics01 natural sciences0104 chemical scienceschemistry.chemical_compoundHomologous seriesCrystallographychemistryAmideGeneral Materials ScienceAlkylCrystEngComm
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New anionic cobalt complexes using highly hindered bis-amides with varying donor abilities as ligands.

2007

Four potential tetradentate ligands of formulae 1,2-bis-(3,5-di-tert-butyl-2-hydroxybenzamido)ethane (H(4)L(1), 1), 1,2-bis-(3,5-di-tert-butyl-2-hydroxybenzamido)propane (H(4)L(2), 2), 1,2-bis-(3,5-di-tert-butyl-2-hydroxybenzamido)benzene (H(4)L(3), 3) and 1,8-bis-(3,5-di-tert-butyl-2-hydroxybenzamido)naphthalene (H(4)L(4), 4) have been prepared and the crystal structures of three of them (1, 3 and 4) determined by single crystal X-ray diffraction. The investigation of their complexing ability toward Co(II) afforded the compounds of formulae [Co(III)(L(3))Na(I)(H(2)O)(2)] (5), [Co(III)(L(n))Li(I)(H(2)O)2] with n = 1 (6), 2 (7) and 3 (8) and [Co(II)(L(4))Li(I)(2)] (9). Complexes 5-8 are squa…

AnionsMagnetic Resonance SpectroscopyMolecular StructureHydrogen bondStereochemistryLigandSpectrochemical seriesTemperaturechemistry.chemical_elementHydrogen BondingNuclear magnetic resonance spectroscopyCrystal structureCobaltCrystallography X-RayLigandsAmidesInorganic ChemistryCrystallographyMagneticsDeprotonationchemistryOrganometallic CompoundsCobaltSingle crystalDalton transactions (Cambridge, England : 2003)
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