Radiochemistry of Hafnium and Zirconium
Nuclear Science Series: Monographs on Radiochemistry and Radiochemical Techniques. National Academy of Sciences, National Research Council (USA) [e]
Transition Metal Chemistry
This page explains what a transition metal is in terms of its electronic structure, and then goes on to look at the general features of transition metal chemistry (UK) [e]
Transition Metal Chemistry
Transition Metals; Coordination Complexes and Ligands; Nomenclature of Complexes; Isomers (USA) [e]
Atomic Data for Hafnium, Hf
This handbook is designed to provide a selection of the most important and frequently used atomic spectroscopic data in an easily accessible format. Basic Atomic Spectroscopic Data. NIST (USA) [e]
Hafnium Minerals
The Mineralogy of Hafnium. Webmineral (USA) [e]
Zirconium and Hafnium - Statistics and Information
... on the worldwide supply of, demand for, and flow of minerals and materials essential to the U.S. economy, the national security, and protection of the environment. U.S. Geological Survey (USA) [e]
Hafnium alkyl complex
Synthesis, characterization, and reactivity of the first hafnium alkyl complex stabilized by amidate ligands. PDF article (CA) [e]
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This book starts with the most elementary ideas of molecular orbital theory and leads the reader progressively to an understanding of the electronic structure, geometry and, in some cases, reactivity of transition metal complexes. The qualitative orbital approach, based on simple notions such as symmetry, overlap and electronegativity, is the focus of the presentation and a substantial part of the book is associated with the mechanics of the assembly of molecular orbital diagrams. The first chapter recalls the basis for electron counting in transition metal complexes. The main ligand fields (octahedral, square planar, tetrahedral, etc.) are studied in the second chapter and the structure of the "d block" is used to trace the relationships between the electronic structure and the geometry of the complexes. The third chapter studies the change in analysis when the ligands have pi-type interactions with the metal. All these ideas are then used in the fourth chapter to study a series of selected applications of varying complexity (e.g. structure and reactivity). The fifth chapter deals with the "isolobal analogy" which points out the resemblance between the molecular orbitals of inorganic and organic species and provides a bridge between these two subfields of chemistry. The last chapter is devoted to a presentation of basic Group Theory with applications to some of the complexes studied in the earlier chapters. - Oxford University Press, USA, 2005.
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