Search results for ""Author Roald Hoffmann""

This unique book shows how chemistry and physics come together in the solid state and on surfaces. Using a lively, graphic, descriptive approach, it teaches chemists the language that is necessary to understand the electronic structure of extended systems. And, at the same time, it demonstrates how a chemical, frontier-orbital, approach to solid state and surface bonding and reactivity may be constructed. The book begins with the language of crystal orbitals, band structures and densities of states. The tools for moving back from the highly delocalized orbitals of the solid are then built up in a transparent manner; they include decompositions of the densities of states and crystal orbital overlap populations. Using these tools, the book shapes a meeting ground between detailed quantum mechanical calculations and a chemical frontier orbital perspec- tive. Applications include a general picture of chemisorption, bond-breaking and making in the solid state, bonding in metals, the electronic structure of selected conducting and supercon- ducting structures, dissociation, migration and coupling on surfaces and the forces controlling deformation of extended systems.

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This unique book shows how chemistry and physics come together in the solid state and on surfaces. Using a lively, graphic, descriptive approach, it teaches chemists the language that is necessary to understand the electronic structure of extended systems. And, at the same time, it demonstrates how a chemical, frontier-orbital, approach to solid state and surface bonding and reactivity may be constructed. The book begins with the language of crystal orbitals, band structures and densities of states. The tools for moving back from the highly delocalized orbitals of the solid are then built up in a transparent manner; they include decompositions of the densities of states and crystal orbital overlap populations. Using these tools, the book shapes a meeting ground between detailed quantum mechanical calculations and a chemical frontier orbital perspec- tive. Applications include a general picture of chemisorption, bond-breaking and making in the solid state, bonding in metals, the electronic structure of selected conducting and supercon- ducting structures, dissociation, migration and coupling on surfaces and the forces controlling deformation of extended systems.

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What motivates a scientist? One key factor is the pressure from the competition to be the first to discover something new. The moral consequences of this are the subject of the play "Oxygen", dealing with the discovery of this all-important element. The focus of the play is on chemical and political revolutions, as well as the Nobel Prize, which will be awarded for the 100th time in 2001. The action takes place in 1777 and 2001; and the play is written for 3 actors and 3 actresses who play a total of 11 characters. The world premiere will take place in early 2001 in San Diego, and the German premiere in September. The world-famous authors Carl Djerassi and Roald Hoffmann are a guarantee of excellence and suspense, both in their role as scientists -- Carl Djerassi is known as the "Father of the Pill" while Roald Hoffmann received the Nobel Prize for chemistry in 1982 - as well as in their role as authors -- Djerassi has written several successful novels, while Hoffmann is renowned for his poetry.

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