Literatura académica sobre el tema "Coordination bond"

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Artículos de revistas sobre el tema "Coordination bond"

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Salzer, A. "Nomenclature of Organometallic Compounds of the Transition Elements (IUPAC Recommendations 1999)." Pure and Applied Chemistry 71, no. 8 (1999): 1557–85. http://dx.doi.org/10.1351/pac199971081557.

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Organometallic compounds are defined as containing at least one metal-carbon bond between an organic molecule, ion, or radical and a metal. Organometallic nomenclature therefore usually combines the nomenclature of organic chemisty and that of coordination chemistry. Provisional rules outlining nomenclature for such compounds are found both in Nomenclature of Organic Chemistry, 1979 and in Nomenclature of Inorganic Chemistry, 1990This document describes the nomenclature for organometallic compounds of the transition elements, that is compounds with metal-carbon single bonds, metal-carbon multi
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Eagle, Cassandra T., Nkongho Atem-Tambe, Kenneth K. Kpogo, Jennie Tan та Kevin M. Cook. "Crystal structure of tetrakis(μ-N-phenylacetamidato)-κ4N:O;κ4O:N-bis[(2-methylbenzonitrile-κN)rhodium(II)](Rh—Rh)". Acta Crystallographica Section E Structure Reports Online 70, № 9 (2014): m333—m334. http://dx.doi.org/10.1107/s1600536814017930.

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The complex molecule of the title compound, [Rh2{N(C6H5)COCH3}4(C8H7N)2], exhibits inversion symmetry. The four acetamidate ligands bridging the dirhodium core are arranged in a 2,2-transmanner with two N atoms and two O atoms coordinating to each RhIIatomtransto one another. The Neq—Rh—Rh—Oeqtorsion angles on the acetamidate bridge vary between −4.07 (5) and −6.78 (7)°. The axial nitrile ligands complete the distorted octahedral coordination sphere of each RhIIatom and show a nonlinear coordination with Rh—N—C bond angles of 151.6 (3) and 152.5 (3)°. The bond lengths of the two nitrile triple
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Zhu, Ling, and Andrew E. DePristo. "Bond order simulation model: Coordination dependent bimetallic bonds." Journal of Chemical Physics 102, no. 13 (1995): 5342–49. http://dx.doi.org/10.1063/1.469261.

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Trzesowska, Agata, Rafal Kruszynski, and Tadeusz J. Bartczak. "New lanthanide–nitrogen bond-valence parameters." Acta Crystallographica Section B Structural Science 61, no. 4 (2005): 429–34. http://dx.doi.org/10.1107/s0108768105016083.

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The bond-valence parameters (R ij ), which connect bond valences and bond lengths, have been computed for lanthanide–nitrogen bonds. It has been found that values of bond-valence parameters decrease with increasing lanthanide atomic number in coordination compounds, and that they are smaller than the R ij parameters of inorganic compounds. As expected, the lanthanide–nitrogen bond-valence parameters are larger than lanthanide–oxygen bond-valence parameters. There are no obvious dependencies between the number of N atoms in the coordination sphere and the bond-valence parameter value.
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Chen, Haomin, and Stefan Adams. "Bond softness sensitive bond-valence parameters for crystal structure plausibility tests." IUCrJ 4, no. 5 (2017): 614–25. http://dx.doi.org/10.1107/s2052252517010211.

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Based on a description of bond valence as a function of valence electron density, a systematic bond softness sensitive approach to determine bond-valence parameters and related quantities such as coordination numbers is elaborated and applied to determine bond-valence parameters for 706 cation–anion pairs. While the approach is closely related to the earliersoftBVparameter set, the newsoftNC1parameters proposed in this work may be simpler to apply in plausibility checks of crystal structures, as they follow the first coordination shell convention. The performance of thissoftNC1bond-valence par
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Tominaka, Satoshi, Hamish H. M. Yeung, Sebastian Henke та Anthony K. Cheetham. "Coordination environments and π-conjugation in dense lithium coordination polymers". CrystEngComm 18, № 3 (2016): 398–406. http://dx.doi.org/10.1039/c5ce01658d.

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Bosi, Ferdinando. "Mean bond-length variation in crystal structures: a bond-valence approach." Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 70, no. 4 (2014): 697–704. http://dx.doi.org/10.1107/s2052520614011470.

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The distortion theorem of the bond-valence theory predicts that the mean bond length 〈D〉 increases with increasing deviation of the individual bond lengths from their mean value according to the equation 〈D〉 = (D′ + ΔD), whereD′ is the length found in a polyhedron having equivalent bonds and ΔDis the bond distortion. For a given atom,D′ is expected to be similar from one structure to another, whereas 〈D〉 should vary as a function of ΔD. However, in several crystal structures 〈D〉 significantly varies without any relevant contribution from ΔD. In accordance with bond-valence theory, 〈D〉 variatio
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Gagné, Olivier Charles, and Frank Christopher Hawthorne. "Bond-length distributions for ions bonded to oxygen: results for the transition metals and quantification of the factors underlying bond-length variation in inorganic solids." IUCrJ 7, no. 4 (2020): 581–629. http://dx.doi.org/10.1107/s2052252520005928.

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Bond-length distributions are examined for 63 transition metal ions bonded to O2− in 147 configurations, for 7522 coordination polyhedra and 41 488 bond distances, providing baseline statistical knowledge of bond lengths for transition metals bonded to O2−. A priori bond valences are calculated for 140 crystal structures containing 266 coordination polyhedra for 85 transition metal ion configurations with anomalous bond-length distributions. Two new indices, Δtopol and Δcryst, are proposed to quantify bond-length variation arising from bond-topological and crystallographic effects in extended
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Feng, Xi-Zhang, Ying-Ting Xu, and Peng-Nian Sun. "Balance between van der Waals and coordination bond energies—Unified Model of coordination bond length in lanthanide complexes." Canadian Journal of Chemistry 66, no. 1 (1988): 109–10. http://dx.doi.org/10.1139/v88-016.

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This paper presents the variation of coordination bond lengths in lanthanide complexes as a balance between van der Waals and coordination bond energies. Each coordination atom moves in a unified potential well that is a combination of the Morse potential of its coordination bond and the van der Waals potentials of its neighboring coordination atoms. This is termed the Unified Model of coordination bond length.
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Adams, Stefan. "Relationship between bond valence and bond softness of alkali halides and chalcogenides." Acta Crystallographica Section B Structural Science 57, no. 3 (2001): 278–87. http://dx.doi.org/10.1107/s0108768101003068.

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Established bond-valence parameter tables rely on the assumption that the bond-valence sum of a central atom is fully determined by interactions to atoms in its first coordination shell. In this work the influence of higher coordination shells is tested in detail for bonds between lithium and oxygen. It is demonstrated that the sum of the weak interactions with atoms of the second coordination shells significantly contributes to the valence sum and should therefore not be neglected. Since the independent refinement of the two parameters R 0 and b is hardly possible from the limited range of bo
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Tesis sobre el tema "Coordination bond"

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Ly, Tuan Q. "New heteroatom ligands and metalla-heterocycles via P-N bond formation." Thesis, Loughborough University, 1997. https://dspace.lboro.ac.uk/2134/32271.

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The reaction of K[N{P(S)Ph2}2] (R = Ph or iPr) with [Mo(N3S2)Cl3] in dichloromethane gives [Mo(N3S2){(ph2(O)PNP(S)P2}2] 1 and [Mo(N3S2){iPr2(O)PNP(S)iPr2}2] 2. X-ray crystallography revealed in both compounds the chelates are co-ordinated to octahedral metal centres. The oxygen atoms are located in the trans position to the nitrogen of the triazene ring. The absence of a chloride counter ion indicates that the metal centre has been reduced from Mo(VI) to Mo(V), and electron paramagnetic resonance spectroscopy confIrmed the reduction of the molybdenum centres. The friction reducing study of com
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Gagné, Olivier C. "Bond lengths and bond valences of ions bonded to oxygen: their variability in inorganic crystals." Acta Crystallographica B, 2015. http://hdl.handle.net/1993/31697.

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A large amount of information concerning interatomic distances in the solid state is available, but little has been done in recent times to comprehensively filter, summarize and analyze this information. Here, I examine the distribution of bond lengths for 135 ions bonded to oxygen, using 180,331 bond lengths extracted from 9367 refined crystal structures collected from the Inorganic Crystal Structure Database (ICSD). The data are used to evaluate the parameterization of the bond-length—bond-valence relation of the bond-valence model. Published bond-valence parameters for 135 cations bonde
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Joost, Maximilian. "Synthesis and original reactivity of copper and gold complexes : sigma-Bond coordination, oxidative addition, migratory insertion." Toulouse 3, 2014. http://thesesups.ups-tlse.fr/2413/.

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Ce manuscrit porte sur l'étude de la chimie de coordination et de nouvelles réactivités de complexes du cuivre et de l'or. Plus particulièrement, le travail ici présenté avait pour objectif d'approfondir nos connaissances de deux procédés clés de la chimie organométallique rarement observées dans le cas du cuivre et de l'or : (i) l'activation de liaisons s et (ii) l'insertion migratoire. La première partie de ce manuscrit est dédiée à l'étude de la coordination de liaisons s-SiH sur le cuivre. En tirant profit de la stratégie de l'assistance chélate, nous avons synthétisé des complexes de cuiv
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Shimogawa, Hiroyuki. "Development of Functional Organic Materials with an Intramolecular B-N Coordination Bond as a Key Scaffold." 京都大学 (Kyoto University), 2017. http://hdl.handle.net/2433/225619.

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Chernova, Ekaterina. "Synthesis of new [1111]metacyclophane ligands for the formation of molecular coordination networks." Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAF043/document.

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En termes de chimie supramoléculaire et de tectonique moléculaire, les métacyclophanes [1111] sont des composés attractifs pour la préparation et l’étude de réseaux moléculaires, car la particularité de ces composés est la stabilité exceptionnelle de la conformation l'encombrement stérique entre les groupes ortométhyliques des cycles aryles. Un tel type rigide d'échafaudage moléculaire aussi bien avec la présence de sites de liaison de terminaux est considéré comme un bloc de construction moléculaire très approprié pour la formation de différents types de réseaux moléculaires en utilisant prin
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Fong, Shirley Kit-Shan. "Metal ions in glass : the nature of the M-O bond and its influence on redox and coordination equilibria." Thesis, University of Aberdeen, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395071.

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Redox and coordination equilibria of the [Mn<sup>2+</sup>]/[Mn<sup>3+</sup>] and [Fe<sup>2+</sup>]/[Fe<sup>3+</sup>] couples in are studied glasses over a wide structural and basicity range, and discussed in terms of the optical basicity model. Changes in concentration of ionic species were measured using optical spectroscopy. Basicity of the sites occupied by Mn<sup>2+</sup> and Fe<sup>3+</sup> ions were calculated from spectra and compared to theoretical calculated glass basicity. Behaviour of the [Mn<sup>2+</sup>]/[Mn<sup>3+</sup>] couple was consistent with the optical basicity model, with
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Janné, Mats. "Analysis of working practices in the forthcoming BonD era : - How will the new IT system affect the field of delivery coordination?" Thesis, Linköping University, Department of Science and Technology, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-9733.

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<p>This master thesis has been carried out at Billerud AB in Skärblacka and Gruvön and at the Department of Science and Technology, University of Linköping. The purpose of this thesis work is to evaluate the new standardised IT system in comparison to the old systems in reference to create routines, models and working practices and to see how the daily work will be affected for the delivery coordinators.</p><p>Billerud is a packaging paper company with four production sites located in Gruvön, Karlsborg, Skärblacka and Beetham (United Kingdom). The company’s sales organisation is made up of sal
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Hall, Nikita. "Synthèse, caractérisation et étude de la réactivité de complexes métalliques bio-inspirés à liaison Métal-Thiol." Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENV073/document.

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Cette thèse présente la synthèse et la caractérisation de complexes moléculaires bio-inspirés àliaison métal-thiol avec l'objectif de modéliser le site actif de certaines métalloenzymes. Enparticulier, notre but était d'améliorer notre compréhension sur le rôle que joue cette liaisonmétal-thiol dans les métalloenzymes, notamment au niveau de ses propriétés structurales etélectroniques ainsi que sur la réactivité des sites actifs associés. Le thiol lié à un métal peut êtresujet à deux types de réaction dans métalloenzymes : les réaction de S- alkylation ou de Soxygénation.Il a été montré que la
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Beguerie, Marion. "Hydrogénation catalysée de cyanoboranes : de l'étude du mécanisme à l'étude des propriétés de composés BN cycliques." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30326/document.

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Le manuscrit présente une étude approfondie sur l'hydrogénation/cyclisation de cyano-aminoboranes pour la synthèse de composés BN cycliques catalysée par un complexe de ruthénium. Le premier chapitre est une introduction bibliographique mettant en évidence l'intérêt des molécules BN cycliques et décrivant les étapes élémentaires clés dans les systèmes catalytiques impliquant l'activation de la liaison B-H et la réduction de la liaison CN menant, en particulier, à la formation d'une liaison B-N. On se concentrera sur la réactivité des complexes bis (dihydrogène), RuH2(H2)2(PR3)2, avec les liais
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Dankert, Fabian [Verfasser], and Hänisch Carsten [Akademischer Betreuer] von. "Contributions to siloxane coordination chemistry and silicon based crown-ether analogues via s-block metal templated Si-O bond activation / Fabian Dankert ; Betreuer: Carsten von Hänisch." Marburg : Philipps-Universität Marburg, 2021. http://d-nb.info/1241246645/34.

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Libros sobre el tema "Coordination bond"

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Constable, Edwin C. Metals and ligand reactivity. E. Horwood, 1990.

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Constable, Edwin C. Metals and ligand reactivity. Ellis Horwood, 1990.

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Kawaguchi, Shinʼichi. Variety in coordination modes of ligands in metal complexes. Springer-Verlag, 1988.

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N, Dʹi͡a︡chkov P., ed. Heteroligand molecular systems: Bonding, shapes and isomer stabilities. Taylor & Francis, 2002.

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Office, General Accounting. Insurance regulation: Common standards and improved coordination needed to strengthen market regulation : report to the Chairman, Committee on Financial Services, House of Representatives. GAO, 2003.

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Ghoussoub, Assaad Jihad. Metal coordination-hydrogen bond cooperativity in anion recognition and phosphate hydrolysis. 2003.

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Ghoussoub, Assaad Jihad. Metal coordination-hydrogen bond cooperativity in anion recognition and phospate hydrolysis. 2003.

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Rommerskirchen, Charlotte. EU Fiscal Policy Coordination in Hard Times. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198829010.001.0001.

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What happens to European Union (EU) fiscal policy coordination in hard times? Recent accounts of the EU have portrayed the Union as plagued by an austerity regime and rampant moral hazard. Charlotte Rommerskirchen provides an alternative account of economic cooperation in Europe during the Great Recession and the European Debt Crisis. Drawing on Mancur Olson’s theory of collective action, EU Fiscal Policy Coordination in Hard Times combines evidence from statistical analysis and extensive interviews with key players. This book reaches an unexpected conclusion regarding the state of collective
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Joost, Maximilian. Synthesis and Original Reactivity of Copper and Gold Complexes: Σ-Bond Coordination, Oxidative Addition, Migratory Insertion. Springer, 2016.

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Municipal Bonds Coordinator. National Learning Corp, 2005.

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Capítulos de libros sobre el tema "Coordination bond"

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Phanopoulos, Andreas, Nicholas J. Long, and Philip W. Miller. "Triphosphine Ligands: Coordination Chemistry and Recent Catalytic Applications." In The Chemical Bond III. Springer International Publishing, 2016. http://dx.doi.org/10.1007/430_2015_211.

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Bouhadir, Ghenwa, and Didier Bourissou. "Coordination of Lewis Acids to Transition Metals: Z-Type Ligands." In The Chemical Bond III. Springer International Publishing, 2016. http://dx.doi.org/10.1007/430_2015_201.

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Kreiter, C. G., and K. Lehr. "Photochemically Induced C-C-Bond Formation in the Coordination Sphere of Transition Metals." In Photochemistry and Photophysics of Coordination Compounds. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-72666-8_40.

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Nolan, Steven P., David Stern, David Hedden, and Tobin J. Marks. "Metal and Ancillary Coordination Effects on Organolanthanide—Ligand Bond Enthalpies." In ACS Symposium Series. American Chemical Society, 1990. http://dx.doi.org/10.1021/bk-1990-0428.ch011.

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Ohya, Yuichi, Tatsunori Masunaga, Tatsuro Ouchi, et al. "Antitumor Drug Delivery by Dextran Derivatives Immobilizing Platinum Complex (II) Through Coordination Bond." In ACS Symposium Series. American Chemical Society, 1998. http://dx.doi.org/10.1021/bk-1998-0709.ch021.

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Chipperfield, J. R., and N. Bartlett. "In Coordination Compounds Containing a Group-IIA-Transition- and Inner-Transition-Metal Bond." In Inorganic Reactions and Methods. John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145289.ch133.

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Demolliens, A., Y. Jean, and O. Elsenstein. "Structural Distortions and Activation of a C-H Bond in Do Electron Deficient Alkyl Transition Metal Complexes." In Quantum Chemistry: The Challenge of Transition Metals and Coordination Chemistry. Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4656-9_21.

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Chipperfield, J. R. "In Coordination Compounds Containing a Group-IA-Transition-Metal or Inner-Transition-Metal Bond." In Inorganic Reactions and Methods. John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145289.ch129.

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Ye, Yunpeng, and Garland R. Marshall. "Peptide Bond Modification for Metal Coordination: 1. Metal-Binding Properties of Hydroxamate-Based Pseudo-Peptides." In Peptides: The Wave of the Future. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0464-0_274.

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Ye, Yunpeng, and Garland R. Marshall. "Peptide Bond Modification for Metal Coordination: 3. Metal-Binding Properties of Phosphorus-Based Pseudo-peptides." In Peptides: The Wave of the Future. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0464-0_276.

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Actas de conferencias sobre el tema "Coordination bond"

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Nakazawa, H. "Strong bond cleavage promoted by silyl group migration in a coordination sphere." In SUSTAINABLE CHEMISTRY 2011. WIT Press, 2011. http://dx.doi.org/10.2495/chem110121.

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ANIYA, M. "BOND STRENGTH – COORDINATION NUMBER FLUCTUATIONS AND THE FRAGILITY OF SOME SUPERIONIC GLASS FORMING LIQUIDS." In Proceedings of the 8th Asian Conference. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812776259_0084.

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Yu, Haitao, Jungang Li, Xiaohua Gan, Min Liu, Pengcheng Xu, and Xinxin Li. "Repeatedly usable bio-molecule cantilever sensors with a coordination-bond breaking and re-linking technique." In TRANSDUCERS 2009 - 2009 International Solid-State Sensors, Actuators and Microsystems Conference. IEEE, 2009. http://dx.doi.org/10.1109/sensor.2009.5285722.

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Iqbal, Maryam, and Asif Mahmood. "Bond Graph Modeling and LQR Control Synthesis of a Robotic Digit in Human Impaired Hand for Anthropomorphic Coordination." In 2019 International Conference on Robotics and Automation in Industry (ICRAI). IEEE, 2019. http://dx.doi.org/10.1109/icrai47710.2019.8967367.

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Lin, Kuen-Song, Chi-Nan Ku, Chien-Te Hsieh, Shih-Hung Chan, and Ay Su. "Synthesis, Characterization, and Hydrogen-Storage Ability of Surface-Modified Multi-Wall Carbon Nanotubes." In ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2006. http://dx.doi.org/10.1115/fuelcell2006-97172.

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Carbon nanotubes (CNTs) have attracted increasing attention because of their unique structural, mechanical, and electronic properties. Surface chemistry modifications are also useful and critical to manipulate the adsorptive properties of CNTs and develop their hydrogen storage potential. Therefore, the synthesis or identification of multi-wall carbon nanotubes (MWCNTs) and H2 storage capacity in MWCNTs were investigated. Experimentally, the MWCNTs were produced from the catalytic-assembly benzene-thermal routes by reduction of C6Cl6 with metallic K or Na in the presence of Co/Ni catalyst prec
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Taylor, Graham, Donald Leo, and Andy Sarles. "Detection of Botulinum Neurotoxin/A Insertion Using an Encapsulated Interface Bilayer." In ASME 2012 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/smasis2012-8101.

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Many signaling mechanisms in living cells occur at biological boundaries via cell surface receptors and membrane proteins embedded in lipid bilayers. The coordination of actions of sensory and motor neurons in the nervous system represents one example of many that heavily depends on lipid membrane bound receptor mediated signaling. As a result, chemical and biological toxins that disrupt these neural signals can have severe physiological effects, including paralysis and death. Botulinum neurotoxin Type A (BoNT/A) is a proteolytic toxin that inserts through vesicle membranes and cleaves membran
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Luo, Renshi, Romain Bourdais, Ton J. J. van den Boom, and Bart De Schutter. "Integration of resource allocation coordination and branch-and-bound." In 2015 54th IEEE Conference on Decision and Control (CDC). IEEE, 2015. http://dx.doi.org/10.1109/cdc.2015.7402885.

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Sun, Xuanhao, Eric S. McLamore, D. Marshall Porterfield, and Ozan Akkus. "Calcium Efflux From Bone Matrix in Response to Mechanical Loading." In ASME 2011 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2011. http://dx.doi.org/10.1115/sbc2011-53625.

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Bone is known for its ability to self-repair the microdamage and actively adapt to its mechanical environment, both of which are under the coordination of bone cells. Mechanical cues are sensed by cells and converted into cellular events in a process called mechanotransduction [1]. Most theories of mechanotransduction are based on direct stimulus of cell surface receptors by substrate deformation, fluid shear and/or hydrostatic pressure [2]. Yet, mechanical stimulus may come to affect cell response indirectly, via pathways which alter the pericellular niche. Such indirect pathways of mechanotr
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Shealy, Tripp, Mo Hu, and John Gero. "Patterns of Cortical Activation When Using Concept Generation Techniques of Brainstorming, Morphological Analysis, and TRIZ." In ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/detc2018-86272.

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This paper presents the results of an experimental study comparing cortical activation in the brain when generating solutions using brainstorming, morphological analysis, and TRIZ. Twelve engineering students were given the same three design tasks, respectively, using the three solution generation techniques. Students generated solutions while change in oxygenated blood along the prefrontal cortex (PFC) was measured using functional near-infrared spectroscopy. The results show that generating solutions using brainstorming, morphological analysis, and TRIZ leads to differences in cortical activ
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Prasad, S. K., and J. Balasooriya. "Web coordination bonds: a simple enhancement to Web services infrastructure for effective collaboration." In 37th Annual Hawaii International Conference on System Sciences, 2004. Proceedings of the. IEEE, 2004. http://dx.doi.org/10.1109/hicss.2004.1265456.

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