6533b829fe1ef96bd128ac72

RESEARCH PRODUCT

Amorphous Complexes MM (EDTA) (H2O)4 · 2H2O . LAXS and XPS Investigation of the Local Structure

Daniel Beltrán-porterCarmen Munoz RocaAntonella RossiRuggero Caminiti

subject

chemistry.chemical_classificationStereochemistryChemistryPhotoemission spectroscopyGeneral Physics and AstronomyAmorphous solidchemistry.chemical_compoundCrystallographyTransition metalX-ray photoelectron spectroscopyDiamineX-ray crystallographyMoleculePhysical and Theoretical ChemistryInorganic compoundMathematical Physics

description

Abstract The amorphous MM (EDTA)(H2O)4·2 H2O (M = Ni,Co) substances are made up of infinite chains of alternating "hydrated" and "chelated" octahedra bridged by carboxylate groups: M(H2O)4 - M(EDTA)-M(H2O)4-... . XPS enables to ascertain that the coordination of the EDTA ligand in the amorphous phase is identical to that in the crystalline phase, i.e., hexacoordination toward the M atom and two bridging groups in the Ni -Ni, Co - Co compounds.

https://doi.org/10.1515/zna-1988-0610