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Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - For a long time, the properties of transition metal and rare earth compounds have fascinated chemists and physicists from a scientific view-point, and more recently also their enormous potential as new materials has been explored. Applications in different fields have already been realized or are under c- rent investigation, for example, new laser materials, IR to visible upconversion systems, compounds for photolithographic processes, systems involving pho- redox processes for solar energy conversion, new photovoltaic devices, chemical sensors, biosensors, electroluminescent devices (OLEDs) for flat panel display systems, supramolecular devices with wide-range definable photophysical properties, materials for energy harvesting, optical information and storage systems, etc. Metal complexes are also highly important in biology and me- cine. Most of the applications mentioned are directly related to the properties of the electronic ground state and the lower-lying excited states. Metal complexes with organic ligands or organometallic compounds exhibit outstanding features as compared to purely organic molecules. For instance, metal compounds can often be prepared and applied in different oxidation states. Furthermore, various types of low-lying electronic excitations can be induced by a suitable choice of ligands, for example, such as metal-centered transitions (MC, e. g. d-d tran- tion), ligand-centered (LC, e. g. n-n ), metal-to-ligand-charge transfer (MLCT, e. g. d-7r ), intra-ligand-charge-transfer (ILCT) transitions,etc. In particular,the orbitals involved in the resulting lowest excited states determine the photoph- ical and photochemical properties and thus the specific use of the compound.…

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paperback. Zustand: New. Paperback.Pub Date:2023-01 Pages:484 Language:Publisher:Shanghai University of Finance and Economics Press Today rice is the food of half the world's population. Its history is inseparable from the emergence of colonialism. the global network of industrial capitalism. and the modern world economy. The history of rice is an important and innovative field of current research that has attracted great attention. but no one has yet attempted to write the history of rice and its place in the rise o.…