Diagonal Relationship among Organometallic Transition-Metal Complexes
Kazushi Mashima
Abstract
This tutorial introduces the “diagonal relationship” among organometallic transition-metal complexes having the same electron count in the 18-electron rule and analogous ligands aligned diagonally in the periodic table. Representative examples cover diagonal relations among dialkyl complexes of Ti-Nb-W for precursors of methylidenes and alkylidenes, d0 alkylidene complexes of V-Mo-Re for olefin metathesis catalysts, and neutral and cationic d0 methyl complexes of Sc-Zr-Ta for α-olefin polymerization and oligomerization catalysts, tridentate P-N-P-ligated complexes of Mn-Ru-Ir, and half-metallocene hydride complexes of Ru-Ir, which are active catalysts for hydrogenation and transfer hydrogenation.
Topics & Concepts
ChemistryTransition metalDiagonalOrganometallic chemistryGroup 2 organometallic chemistryMetalComputational chemistryStereochemistryCrystallographyMoleculeOrganic chemistryCatalysisCrystal structureGeometryMathematicsAsymmetric Hydrogenation and CatalysisChemical Synthesis and AnalysisOrganometallic Complex Synthesis and Catalysis