Achim Muller – författare

The early transition elements, especially vanadium, molybdenum and tungsten, form a vast number of polyoxoanions with remarkable structures, unprecedented combinations of properties and relevance to disciplines ranging from mathematics to medicine. Although the first examples of these substances were described in the mid-19th century, it is only within the last 20-30 years that the field has begun to receive the attention it deserves. This book contains 28 review chapters by leading investigators who participated in an international workshop held in Bielefeld in July 1992. It provides a survey of recent and current activity in this field - including new synthetic methods and new structural types; topological analysis of polyhedral structures; discrete polyoxoanions as models for metal oxide lattices, magnetic interactions and domains; donor-acceptor and host-guest chemistry; organic and organometallic derivatives; mixed valence and electron transfer; homogeneous and heterogeneous redox and acid catalysis; photochemistry and photocatalysis; polyoxoanion-protein chemistry; antitumour and anti-HIV activity.

This book provides an authoritative up-to-date summary of the chemistry and applications of polyoxometalates with emphasis on new synthetic strategies directed towards functionalized organic derivatives, self-assembly of mesoscopic composite polyoxoanions, generation of framework materials and thin oxide films, extended optical, magnetic, and electrical properties, applications in homogeneous and nanocluster-based catalysts, photocatalytic water decontamination, ribosomal crystallography, and topological aspects of large symmetrical structures.

Polyoxometalates (POMs) form a large, distinctive class of molecular inorganic compounds of unrivaled electronic versatility and structural variation, with impacts ranging from chemistry, catalysis, and materials science to biology, and medicine. This book covers the basic principles governing the structure, bonding and reactivity of these metal-oxygen cluster anions and the major developments in their molecular science. The book comprises three sections. The first covers areas ranging from topological principles via synthesis and stability to reactivity in solution. It also focuses on the physical methods currently used to extract information on the molecular and electronic structures as well as the physical properties of these clusters. The second part reviews different types of POMs, focusing on those systems that currently impact other areas of interest, such as supramolecular chemistry, nanochemistry and molecular magnetism. The third section is devoted to POM-based materials and their applications and prospects in catalysis and materials science.

Polyoxometalates (POMs) form a large, distinctive class of molecular inorganic compounds of unrivaled electronic versatility and structural variation, with impacts ranging from chemistry, catalysis, and materials science to biology, and medicine. This book covers the basic principles governing the structure, bonding and reactivity of these metal-oxygen cluster anions and the major developments in their molecular science. The book comprises three sections. The first covers areas ranging from topological principles via synthesis and stability to reactivity in solution. It also focuses on the physical methods currently used to extract information on the molecular and electronic structures as well as the physical properties of these clusters. The second part reviews different types of POMs, focusing on those systems that currently impact other areas of interest, such as supramolecular chemistry, nanochemistry and molecular magnetism. The third section is devoted to POM-based materials and their applications and prospects in catalysis and materials science.

This volume constitutes the proceedings of an international meeting held from June 28 to July 1, 1981, at Zif, Zentrum far Interdisziplin~re Forschung an der Universit~t Bielefeld, West Germany. The meeting was one of a continuing series organized through Zif on topics which transcend the boundaries of the traditional academic disciplines. The almost exponentially growing area of nitrogen fixation research fits this criterion completely. It is, however, so broad that we oriented and focused the meeting on just the chemical, biochemical, and genetic aspects to maximize the interaction among the participants and to produce a volume which would serve as a reference source for the involved researcher, the newly interested scientist and those with a more casual interest. The meeting was generously supported by Zif, the Westf~lisch­ Lippische Universit~tsgesellschaft, and the Fonds der Chemischen Industrie. We sincerely thank these organizations for their generosity and interest and for recognizing the importance of nitrogen fixation research for the future of mankind.

This volume constitutes the proceedings of an international meeting held from June 28 to July 1, 1981, at Zif, Zentrum far Interdisziplin~re Forschung an der Universit~t Bielefeld, West Germany. The meeting was one of a continuing series organized through Zif on topics which transcend the boundaries of the traditional academic disciplines. The almost exponentially growing area of nitrogen fixation research fits this criterion completely. It is, however, so broad that we oriented and focused the meeting on just the chemical, biochemical, and genetic aspects to maximize the interaction among the participants and to produce a volume which would serve as a reference source for the involved researcher, the newly interested scientist and those with a more casual interest. The meeting was generously supported by Zif, the Westf~lisch­ Lippische Universit~tsgesellschaft, and the Fonds der Chemischen Industrie. We sincerely thank these organizations for their generosity and interest and for recognizing the importance of nitrogen fixation research for the future of mankind.

Der Autor analysiert die literarische Struktur von Prov 1-9 und zeichnet nach, wie diese erste "Sammlung" des biblischen Proverbien-Buches entstanden ist. Ein Schwerpunkt der Arbeit ist die Einordnung der einzelnen Wachstumsstufen in die Geschichte des weisheitlichen Diskurses in Israel.

Die biblischen Texte sind das Blut, das in den Adern der Theologie fließt. Wer Theologie studiert, muss sich intensiv mit ihnen beschäftigen. Dazu wird der typische Lernstoff für eine Bibelkundeprüfung didaktisch geschickt aufbereitet.Als theologisches Buch geht diese Bibelkunde aber darüber hinaus: Sie verknüpft die Grundinformation immer mit der theologischen Relevanz der Texte. Das hilft beim Lernen, stellt aber auch einen Ausgangspunkt – und hoffentlich auch eine Motivation! – für das weitere Studium bereit. Die Perspektive ist, neben erster historisch-exegetischer Information, eine der Auslegungsgeschichte: Wie ist das Alten Testaments im Neuen, sowie in der jüdischen und christlichen Tradition aufgenommen – mit Seitenblicken in den Koran. Besondere Aufmerksamkeit wird der Rezeption in Kunst, Literatur, Musik und Film geschenkt. Ziel ist es, die Bibel als grundlegenden Text unserer westlichen Kultur zu verstehen.[Theological Introduction to the Bible]The biblical texts are the blood coursing in the veins of theology. Studying theology means studying the Bible thoroughly. This introduction provides the basic information for the preliminary exams in Germany in a didactic skilful way.But as a theological textbook this introduction goes further: It connects the basic information with their theological significance. This helps learning. But provides also a good starting point for advanced theological studies. Besides some historical and exegetical information, the perspective of the book is one of the history of the impact of Biblical texts: How the Old Testament is seen in the New and in Jewish and Christian tradition — and gives even some glimpses into the Quranic. Particular attention is paid to the reception in art, literature, music and movies. The aim is at understanding the Bible as the fundamental textbook of our western culture.

With this handbook the distinguished team of editors has combined the expertise of leading nanomaterials scientists to provide the latest overview of this field.The authors cover the whole spectrum of nanomaterials, ranging from theory, synthesis, properties, characterization to application, including such new developments as: quantum dots, nanoparticles, nanoporous materials, as well as nanowires, nanotubes and nanostructural polymersnanocatalysis, nanolithography, nanomanipulationmethods for the synthesis of nanoparticles.The book can thus be recommended for everybody working in nanoscience: Beginners can acquaint themselves with the exciting subject, while specialists will find answers to all their questions plus helpful suggestions for further research.

In this exciting and rapid development reflecting book twelve of the participants at the Symposium "From Simple Material Systems to Complex Ones" - "From Information to Structure" give a general view of todays knowledge with respect to multi-, inter- and transdisciplinary research in chemistry and science in general. How to analyse e. g. non-covalent interactions in the case of molecular recognitions or selfreplication, how to build up e. g. clusters and self-assembled molecules or how, in general, a knowledge of simple systems, acquired by the instruments of natural science research can be transferred to (more) complex systems and be utilized to improve our understanding, even of society was discussed by experts on chemical subjects like biochemistry, structure analysis, supramolecular chemistry and cluster formation up to biophysics, social sciences and philosophy.

Die Microservices-Architektur ist ein moderner Architekturstil für die Bereitstellung von autonomen Services im Web. Die lose Kopplung, die hohe Skalierbarkeit und ein flexibles Deployment sind die herausragenden Merkmale der Architektur. Der Aufbau einer Microservices-Architektur stellt uns vor einige Problemstellungen, die mit bestehenden Patterns effizient gelöst werden können. Der shortcut zeigt, wie man Patterns in Spring implementieren kann.

The matrix isolation (MI) method has now been used for nearly thirty years. During this period it has been actively developed and the range of problems tackled greatly extended. Originally it was used for studies of transient species involv­ ing vibrational, electronic and ESR spectroscopy. Nowadays the study of transient species forms a comparatively small part of HI work since it has been amply demonstrated that very fruitful information can be obtained of the structure and interactions of stable molecules and their aggregates. In addition to the s~ectroscopic methods mentioned above the MI technique is nowadays a standard method in research based on vibrational relaxation, luminescence, Mossbauer, magnetic circular dichroism, pulsed NMR and photoelectron spectroscopy. The matrix isolation technique affords considerable advantages over more conventional methods in most applications of spectroscopy. Areas where the technique has been widely applied, or shows great potential, include: metal atom chemistry, and its relation to surface chemistry, high temperature inorganic species, transition metal complexes, interstellar species, free radicals and unstable molecules, conformational studies, molecular com­ plexes, and intermolecular forces.

An authoritative up-to-date summary of the chemistry and applications of polyoxometalates with emphasis on new synthetic strategies directed towards functionalized organic derivatives, self-assembly of mesoscopic composite polyoxoanions, generation of framework materials and thin oxide films, extended optical, magnetic, and electrical properties, applications in homogeneous and nanocluster-based catalysts, photocatalytic water decontamination, ribosomal crystallography, and topological aspects of large symmetrical structures.

The matrix isolation (MI) method has now been used for nearly thirty years. During this period it has been actively developed and the range of problems tackled greatly extended. Originally it was used for studies of transient species involv­ ing vibrational, electronic and ESR spectroscopy. Nowadays the study of transient species forms a comparatively small part of HI work since it has been amply demonstrated that very fruitful information can be obtained of the structure and interactions of stable molecules and their aggregates. In addition to the s~ectroscopic methods mentioned above the MI technique is nowadays a standard method in research based on vibrational relaxation, luminescence, Mossbauer, magnetic circular dichroism, pulsed NMR and photoelectron spectroscopy. The matrix isolation technique affords considerable advantages over more conventional methods in most applications of spectroscopy. Areas where the technique has been widely applied, or shows great potential, include: metal atom chemistry, and its relation to surface chemistry, high temperature inorganic species, transition metal complexes, interstellar species, free radicals and unstable molecules, conformational studies, molecular com­ plexes, and intermolecular forces.

The matrix isolation (MI) method has now been used for nearly thirty years. During this period it has been actively developed and the range of problems tackled greatly extended. Originally it was used for studies of transient species involv­ ing vibrational, electronic and ESR spectroscopy. Nowadays the study of transient species forms a comparatively small part of HI work since it has been amply demonstrated that very fruitful information can be obtained of the structure and interactions of stable molecules and their aggregates. In addition to the s~ectroscopic methods mentioned above the MI technique is nowadays a standard method in research based on vibrational relaxation, luminescence, Mossbauer, magnetic circular dichroism, pulsed NMR and photoelectron spectroscopy. The matrix isolation technique affords considerable advantages over more conventional methods in most applications of spectroscopy. Areas where the technique has been widely applied, or shows great potential, include: metal atom chemistry, and its relation to surface chemistry, high temperature inorganic species, transition metal complexes, interstellar species, free radicals and unstable molecules, conformational studies, molecular com­ plexes, and intermolecular forces.

MICHAEL T. POPE AND ACHIM MULLER Department of Chemistry, Georgetown University, Washington, DC 20057-2222, U.S.A.; Department of Chemistry, University of Bielefeld, D-4BOO Bielefeld 1, F.R.G. Polyoxometalates, from their discovery and early development in the final decades of the 19th century to their current significance in disciplines as diverse as chemistry, mathematics, and medicine, continue to display surprisingly novel structures, unexpected reactivities and applications, and to attract increasing attention worldwide. Most of the contributors to the present volume participated in the workshop held at the Center for Interdisciplinary Research at the University of Bielefeld, July 15-17, 1992. The choice of topics illustrates some of the variety of directions and fields in which polyoxometalates can play an important role. Although many of the leading polyoxometalate research groups are represented here, we regret that time constraints, financial limitations, and in some cases difficulties of communication did not allow us to include significant and imp- tant work from other groups outside Europe and North America. In the following we briefly review the current status of the field of po- oxometalates.