Advances in coordination chemistry of hexaurea complexes of chromium(III)
Ritu Bala, Diksha Sachdeva, Manoj Kumar, Vinit Prakash
Abstract
This review focuses on advances in the synthesis of hexaureachromium(III) complexes containing different monoanions, dianions, trianions or hypervalent anions and their investigation by different spectroscopic techniques and X-ray diffraction analysis. Cr(III) is stabilized by intramolecular hydrogen bonds (CO···HNH) between adjacent coordinated urea ligands within the complex. Moreover, crystal structures of many complexes have also shown intermolecular hydrogen bonding between coordinated urea and electronegative atoms of outer-sphere anions along with supramolecular features.
Topics & Concepts
ChemistryHypervalent moleculeIntramolecular forceSupramolecular chemistryIntermolecular forceHydrogen bondCoordination complexCrystallographyCoordination sphereChromiumUreaCrystal structureMoleculeStereochemistryPhysical chemistryOrganic chemistryMetalReagentMetal complexes synthesis and propertiesMetal-Organic Frameworks: Synthesis and ApplicationsMolecular Sensors and Ion Detection