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"Zaozao Qiu shows in this thesis that transition metals can mediate or catalyze the cycloaddition or coupling reactions of carboryne with alkynes or alkenes to afford benzocarboranes, alkenylcarboranes or dihydrobenzocarboranes. These results represent powerful strategies to assemble useful complex molecules from very simple precursors in a single operation. Carboranes have many applications in medicine. However, their unique structures make derivatization difficult and the limited efficient synthetic methods to obtain functional carborane materials have restricted applications of carboranes within a narrow scope. This work breaks a new ground in metal-carboryne chemistry and will have a significant impact on synthetic, cluster and materials chemistry."

"This book about electronic structures of oxo-metal ions, early days in kemisk laboratorium IV and later studies, transition metal corrole coordination chemistry. A review focusing on electronic structural studies, chemical sensing with semiconducting metal phthalocyanines, biological outer-sphere coordination, ligand field and molecular orbital theories of transition metal X-ray absorption edge transitions, and time-resolved X-ray diffraction : the dynamics of the chemical bond."

"This book about a chronicle about the development of electronic structure theories for transition metal complexes orbital models and electronic structure theory, sturmians and generalized sturmians in quantum theory, chemistry as a “manifestation of quantum phenomena” and the born–oppenheimer approximation?, from ligand field theory to molecular collision dynamics : a common thread of angular momentum, a modern first-principles view on ligand field theory through the eyes of correlated multireference wavefunctions, and the phase rule : beyond myopia to understanding."

"Expert techniques for extracting hydrogen from water using transition metal oxides as catalysts Solar Hydrogen Generation details the complex process of separating hydrogen from oxygen--photoelectrolysis. This book comprehensively covers the chemical characteristics of transition metal oxides, explaining how to covert solar energy to electron energy through transition metal oxides. Past experimentations and future directions are discussed. Solar Hydrogen Generation Comprehensively reviews physical characteristics of transition metal oxides both in electrochemical and photocatalytic applications Includes history and future prospects for water photoelectrolysis Reviews state-of-the-art achievements in the fields of condensed matter physics, nanostructured material science, electrochemistry, and photocatalysis Addresses potential problems and solutions In-depth coverage: Hydrogen Production; Electrochemistry and Photoelectrolysis; Transition Metal Oxides; Molecular Structure, Crystal Structure, and Electronic Structure; Optical Properties and Light Absorption; Bandgap, Band Edge, and Engineering; Impurity, Dopants, and Defects; Photocatalytic Reactions, Oxidation and Reduction; Organic and Inorganic Systems; Surface and Interface Chemistry; Nanostructured and Morphology; Synchrotron Radiation and Soft X-Ray Spectroscopy"--Provided by publisher."This pioneering guide covers one of the most promising sustainable energy carriers--water hydrogen--and shows how to extract hydrogen from water using transition metal oxides as catalyst."

"This paper discusses the situation and issues concerning the distinctively Japanese school graduates employment system that has underpinned the stable transition of high school graduated from education to work in Japanese society using data from an interview survey conducted by the Japanese Instute for Labour Policy and Training (JILPT) in 2007 and the Japan Education Longitudinal study (JELS), and focuses in particular on vocational counseling for hogh school graduates...."

"This book about selectivity in palladium catalyzed allylic substitution, computational insights into palladium-mediated allylic substitution reactions, palladium-catalyzed enantioselective allylic substitution, iridium-catalyzed asymmetric allylic substitutions, molybdenum- and tungsten-catalyzed enantioselective allylic substitutions, copper-catalyzed enantioselective allylic substitution, allylic substitutions catalyzed by miscellaneous metals, and enantioselective allylic substitutions in natural product synthesis."

"ABSTRAK

Mekanisme terjadinya transisi metal-isolator (TMI) pada vanadium dioksida (VO2) hingga saat ini masih diperdebatkan apakah disebabkan karena perubahan struktur atau korelasi elektron. Hasil studi sebelumnya yang menunjukkan bahwa fenomena tersebut muncul jauh di bawah suhu kritis ketika sedikit oksigen diambil dari VO2 menjadi VO2−δ memberikan dugaan bahwa efek screening dan korelasi elektron berperan dalam mekanisme TMI pada VO2. Untuk mendemonstrasikan hal tersebut, kami mengkonstruksi Hamiltonian suku kinetik dengan skema tight binding dan suku interaksi antar elektron dengan pendekatan medan rata-rata untuk sistem tanpa dan dengan vakansi oksigen. Kemudian, menghitung rapat keadaan pada ke-dua sistem tersebut dengan menggunakan teknik fungsi Green. Hasil studi kami berhasil mendemonstrasikan peran oksigen terhadap kemunculan TMI pada VO2 dalam gambaran Mott-Hubbard, di mana keadaan dasar ferromagnetik diperlukan untuk dapat bekerjanya skenario ini.

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ABSTRACT

The mechanism of metal-insulator transition (MIT) in vanadium dioksida (VO2) is still under debate whether it is due to the structural phase transition (Peierls dis-tortion) or electron correlation. A previous study indicating that MIT appears far below the critical temperature of TC ≈ 340 K when a small amount of oxygen is taken out the system suggested that oxygen screening and electronic correlations play a dominant role in MIT of VO2. To demonstrate this mechanism, we con-struct a Hamiltonian with a kinetic part constructed within the tight-binding scheme and an interaction part treated within the mean-field a p proximation for the system without and with oxygen vacancies, and then calculate the density of states for both systems using green function technique. Our results successfully demonstrate the role of oxygens in MIT of VO2 within Mott-Hubbard picture where ferromagnetic ground states are necessary for the scenario to work.

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