6533b832fe1ef96bd129a170

RESEARCH PRODUCT

Copper complexes with dithiocarbamates derived from natural occurring amino acids. Crystal and molecular structure of [Cu(en)(EtOH)(H2O)3][Cu(dtc-pro)2]

María V. VillaJoaquín BorrásSilvia Martı́n-velascoAlfonso CastiñeirasEduardo ChicoteBenigno Macías

subject

chemistry.chemical_classificationDenticityChemistryStereochemistrychemistry.chemical_elementEthylenediamineCrystal structureMedicinal chemistryCopperCoordination complexAmino acidInorganic ChemistryMetalchemistry.chemical_compoundvisual_artMaterials Chemistryvisual_art.visual_art_mediumPhysical and Theoretical ChemistryDithiocarbamate

description

Abstract Reaction of Cu(II) salts with dithiocarbamates derived from the amino acids asparagine, glutamine, serine, threonine and tyrosine leads to reduction of the metallic cation and formation of Cu(I) complexes, whereas reaction with proline dithiocarbamate takes place without reduction, leading to formation of a Cu(II) coordination compound. Simultaneous reaction of proline dithiocarbamate and ethylenediamine with Cu(II) leads to the formation of the mixed complex [Cu(en)(EtOH)(H2O)3][Cu(dtc-pro)2]. In the anion, the Cu(II) centre possesses a D2h local symmetry, coordinated by two bidentate dithiocarbamate ligands, while the Cu(II) centre is in a distorted octahedral coordination in the cationic unit. The spectroscopic and magnetic properties of the complexes synthesised are also investigated.

https://doi.org/10.1016/s0277-5387(02)01098-7