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基本説明
This book grew out of a workshop held at the University of Gorgia. Categories: solid-state boron chemistry and boron compounds in organic systhesis.
Full Description
The chemistry of boron exhibits many unique features that distinguish boron from any other element. Thus boron demonstrates exceptional ability in molecular, ionic, and solid state environments to form very stable compounds exhibiting structures based on icosahedral and other deltahedral units. In addition, boron forms a variety of very stable mononuclear tetrahedral as well as polynuclear cage anions including some of the most weakly coordinating anions currently known. The hydride chemistry of boron is also unusually rich providing diverse examples of multicenter bonding, which have stimulated numerous theoretical and computational studies. These features of boron chemistry can be considered to be as distinctive as the unique features of the much better known chemistry of carbon in organic compounds including the exceptional catenation ability of carbon as well as the wide range of compounds containing stable benzenoid and related structural units. These and other special features of boron chemistry can be considered to be as distinctive as the unique features of the much better known chemistry of carbon in organic compounds including the exceptional catenation ability of carbon as well as the wide range of compounds containing stable benzenoid and related structural units. These and other special features of boron chemistry have led to a variety of applications of diverse boron compounds. Thus various solid state metal borides are useful for novel superconductors and thermionic emitters. Borates are useful in detergents and in special borosilicate glasses. Borohydrides and other boron-hydrogen compounds have diverse applications in organic synthesis. Biomedical applications of boron include the use of boron-rich cage compounds in boron neutron cancer chemotherapy. This book grew out of a workshop held at the University Of Georgia in May 1998, organized by Professor R.B. King. The results presented at this conference were divided into two categories : solid-state boron chemistry and boron compounds in organic systhesis. The papers, recently published in special issues of Inorganica Chimica Acta and the Journal of Organometallic Chemistry, are now available in this single book edition. Readers will find the exciting results of scientists from all over the world. This work will certainly stimulate more research and development in the field of boron chemistry well into the next millennium.
Contents
* Organic and Organometallic Chemistry of Cage Boranes and Carboranes Small carborane ligands as spectators and as players. (R.N. Grimes). Recent advances in the chemistry of small cage main Group metallacarboranes. (N.S. Hosmane). Organic derivatives of closo-boranes: a new class of liquid crystal materials. (P. Kaszynski, A.G. Douglass). Synthesis and characterization of a new dicage ortho-carborane with a supramolecular structure directed by intermolecular C-HcarboraneO bonds. (R. Macias, N.P. Rath, L. Barton). The formation of boron-carbon bonds to closo-decaborate (2-) and closo-dodecaborate (2-). (D. Gabel, S. Mai, O. Perleberg). * Boronic Acid and Ester Chemistry Functional group compatibilities in boronic ester chemistry. (D.S. Matteson). Application of 1,2:5,6-di-O-cyclohexylidene-D-mannitol as the chiral director in Matteson's asymmetric homologation. (G. Li, G.W. Kabalka). New perspectives for boronic esters in macrocyclic chemistry. (N. Farfan, H. Hopfl, V. Barba, Ma.E. Ochoa, R. Santillan, E. Gomez, A. Gutierrez). Boronated thiophenols: a preparation of 4-mercaptophenylboronic acid and derivatives. (A. Brikh, C. Morin). * Unsaturated Organoboron Chemistry The preparation of optically active boronic ester substituted &Dgr;2-isoxazolines. (R.H. Wallace, K.K. Zong). Boratabenzenes: from chemical curiosities to promising catalysts. (A.J. Ashe III, S. Al-Ahmad, X. Fang). Selective reactions of minor tautomers among allylic type triorganobornes. (I.D. Gridnev, M.E. Gurskii, Y.N. Bubnov). Enantioselective synthesis of optically active homoallylamines by allylboration of N-diisobutylaluminum imines. (K. Watanabe, S. Kuroda, A. Yokoi, K. Ito, S. Itsuno). Generation of o-quinodimethanes via the electrocyclic reaction of (4Z)-1,2,4,6,7-octapentaenes derived from the organoborate complexes and their subsequent reactions. (Q. Zhang, K.K. Wang). * Other Aspects of Organoboron Chemistry Chiral synthesis via organoboranes. 45. Asymmetric hydroboration of 1-cyclopentenol derivatives using diisopinocampheylborane. Synthesis of optically active cyclopentane-1,2-diol derivatives of high optical purity. (H.C. Brown, D. Murali, B. Singaram). Addition reactions of protonic reagents to optically active 2-phenyl-1,3,2-oxazaborolines. (A. Rosendo Rico, M. Tlahuextl, A. Flores-Parra, R. Contreras). The tetrahedral character of the boron atom newly defined - a useful tool to evaluate the N B bond. (H. Hopfl). * Organoboron Compounds for Boron Neutron Capture Therapy Identification, development, synthesis and evaluation of boron-containg nucleosides for neutron capture therapy. (A.H. Soloway, J.-C. Zhuo, F.-G. Rong, A.J. Lunato, D.H. Ives, R.F. Barth, A.K.M. Anisuzzaman, C.D. Barth, B.A. Barnum). Nucleic acids and nucleosides containg carboranes. (Z.J. Lesnikowski, J. Shi, R.F. Schinazi). The synthesis of a carborane gadolinium-DTPA complex for boron neutron capture therapy. (H. Nemoto, J. Cai, H. Nakamur, M. Fujiwara, Y. Yamamoto). * Other Applications of Organoboron Chemistry Borane-containing polyolefins: synthesis and applications. (T.C. Chung, W. Janvikul). C-substituted bis(dicarbollide) metal compounds as sensors and extractants of radionuclides from nuclear wastes. (C. Vinas, S. Gomez, J. Bertran, J. Barron, F. Teixidor, J.-F. Dozol, H. Rouquette, R. Kivekas, R. Sillanpaa). Copper-catalyzed sodium tetraphenylborate, triphenylborane, diphenylborinic acid and phenylboronic acid decomposition kinetic studies in aqueous alkaline solutions. (C.L. Crawford, M.J. Barnes, R.A. Peterson, W.R. Wilmarth, M.L. Hyder). * Inorganic Chemistry of Boranes and Carboranes Mechanistic aspects of boron hydride reactions. (H. Beall, D.F. Gaines). Conversion of site-specific deuterated closo-1,2- and 1,7-C2B10H12 to deuterated nido-7,8- and 7,9-[C2B9H12]-ions, respectively; mechanistic inferences. Comparisons of GIAO-NMR generated [C2B9H12]-chemical shifts with experimental values and consideration of two principal isomers of the 7,8-[C2B9H12]-ion by comparison of geometry optimization data, NMR chemical shift data, and NMR coupling data to respective experimental data. (H. Lee, T. Onak, J. Jaballas, U. Tran, T.U. Truong, H.T. To). NMR as a tool for elucidation of structures and estimation of electron distribution in boranes and their drivatives. (S. Hermanek). The age of chiral deltahedral borane derivatives. (J. Plesek). Mechanochemical reactions in the chemistry of boranes. (V.V. Volkov, K.G. Myakishev). Novel tetraalkyltetraboranes of the type B4R4,B4H2R4 and B4H4R4. (A. Neu, T. Mennekes, P. Paetzold, U. Englert, M. Hofmann, P. von Rague Schleyer). Alkyl derivatives of [B6H6]2-: NMR and vibrational spectra and crystal structure of (Ph4P)[B6H6CH2Ph]. (B. Steuer, G. Peters, W. Preetz). Synthesis and characterization of the anionic fluorocarboranes 6, 7, 8, 9, 10-CB9H5F5-, 6,7,8,9-CB9H5F4-10-OH-, and 6,7,8,9-CB9H5F4-10-NHCOCH3-. (S.V. Ivanov, S.M. Ivanova, S.M. Miller, O.P. Anderson, K.A. Solntsev, S.H. Strauss). * Transition Metal Derivatives of Boranes and Carboranes Early versus late transition metals. Electronic structure of nido-2-CpMLnB4H8, CpMLn= CpTaCl2, CpWH3 and CpCo. (A.S. Weller, S. Aldridge, T.P. Fehlner). An approach to megalo-boranes. Mixed and multiple cluster fusions involving iridaborane and platinaborane cluster compounds. Crystal structure determinations by conventional and synchrotron methods. (J. Bould, W. Clegg, S.J. Teat, L. Barton, N.P. Rath, M. Thornton-Pett, J.D. Kennedy). Application of the NOE experiment to the analysis of boron hydride derivatives; confirming the assignments of the pseudocloso-complex [1,2-PH2-3-{Cp*}-3,1,2-IrC2B9H9] (Cp* = &eegr;5-C5Me5) and the closo-compounds 1-Ph-1,2-C2B10H11 and 1-Ph-2-Me-1,2-C2B10H10. (D. Reed, A.J. Welch, J. Cowie, D.J. Donohoe, J.A. Parkinson). [4-{(p-cym)Ru}-5-{(Ph3P)2(CO)Os}B4H8]: the first nido-heterobimetallahexaborane cluster. (R. Ll. Thomas, L. Barton). Synthesis, X-ray crystal structure, and reactivity of the monomeric dithio-o-carboranyl iridium complex [Ir( 5-C5Me5)( 2-S2C2B10H10)]. (J.-Y. Bae, Y.-I. Park, J. Ko, K.-I. Park, S.-I. Cho, S.O. Kang. The versatile nature of [CIAu(L-L)AuCl] (L-L = bis-(diphenylphosphino) methane (dppm) or -butane (dppb)) in ractions with [Rh2Ru4(CO)16B]-: crystal structures of [{Rh2Ru4(CO)16B}2{&mgr;-Au(dppb)Au}] and [RhRu4(CO)14-B{Au(dppm)Au}]. (A.D. Hattersley, C.E. Housecroft, A.L. Rheingold). * Solid State Boron Chemistry NMR and NQR studies of boron in vetreous and crystalline borates. (P.J. Bray). B and B-C as interstitials in reduced rare earth halides. (H. Mattausch, O. Oeckler, A. Simon). Comparison of the surface chemical reactivity of hafnium diboride and hafnium. (M. Belyansky, M. Trenary). Lattice vibrations of the icosahedral solid boron arsenide, B12As2. (C.L. Beckel, N. Lu, B. Abbott, M. Yousaf).
