Introduction to d-Block Chemistry - Wits Structural Chemistry

Introduction to d-Block ChemistryNaming Coordination Compounds:Modern procedures follow a few simple rules:3. The prefixes di, tri, etc. are used to indicate the number of simple ligandssuch as Cl - , CN - . If the name of the ligand already containes one of theseprefixes, then bis, tris, tetrakis, etc. Isused(eg (e.g. ethylenediamine).4. After naming ligand, name of the metal follows with its oxidations stateindicated by Roman numerals.5. If the complex ion is an anion, the name ends in ate.6. The donor atom of an ambidentate ligand is indicated using the ‘κ (Greekletter kappa) terminology’. E.g. For SCN-, attachment through N is writtenas thiocyanato-κN, t and attachment t through h S is written as thiocyanato-κS. t In the formula, the coordinating atom is sometimes indicated by underliningit, e.g. [Fe(OH 2 ) 5 (NCS)] 2+7. If a polydentate ligand bridges two metals, the ligand is indicated byincluding μ before the name of the ligand.