Continuous Shape Measures Study of the Coordination Spheres of Actinide Complexes – Part 1: Low Coordination Numbers
Santiago Álvarez
Abstract
Abstract Structural analyses of a large set of molecular structures of actinide compounds allow us to establish trends for stereochemical preferences, common distortion paths, geometrical constraints imposed by different ligand topologies, and the existence of incipient bonds or of Van der Waals intramolecular interactions on purportedly vacant coordination sites. In this study the relative abundance of coordination numbers in actinide chemistry appears to be on average higher than that among the lanthanides. The detailed continuous shape measures study of normalized coordination polyhedra with coordination numbers between 1 and 6 presented here is based on more than 1,800 solid state and gas phase structural data sets.
Topics & Concepts
ChemistryCoordination numberIntramolecular forceCoordination complexLanthanideActinidevan der Waals forceLigand (biochemistry)Coordination geometryPolyhedronMoleculeComputational chemistryChemical physicsCrystallographyStereochemistryIonInorganic chemistryCombinatoricsMetalHydrogen bondMathematicsBiochemistryOrganic chemistryReceptorRadioactive element chemistry and processingCrystallography and molecular interactionsX-ray Diffraction in Crystallography