The Synthesis and Structural Characterization of Some Multiple Donor Ligands and Their Metal Complexes PDF Download
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Author: Steven P. Rowley
Publisher:
ISBN:
Category :
Languages : en
Pages : 558
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Author: Steven P. Rowley
Publisher:
ISBN:
Category :
Languages : en
Pages : 558
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Author: John C. Linehan
Publisher:
ISBN:
Category :
Languages : en
Pages : 514
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Author:
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Category :
Languages : en
Pages :
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Nitrogen based monodentate and bidentate chelating ligands have captured a significant interest due to their ability to coordinate to a wide variety of elements. The â-diketimine, â-ketoiminato, formamidine, pyridineselenolate, and pyrazinecarboxamide ligands have all been employed in this study to further investigate the coordination preferences among main group and transition metals. Steric and electronic properties of these ligands can easily be altered by manipulating the substituents attached, thus leading to predictable structures with potential for many useful and significant applications. Investigations have shown that temperature, solvent, and metal halide employed are all key factors in the reaction outcomes. All of the complexes obtained throughout these studies have been characterized by X-ray crystallography along with other spectroscopic techniques, including NMR, IR, UV/Vis, and M/S. â-diketiminato ligands, [{N(R)C(Me)}2C(H)] where R = Dipp, Mes, commonly referred to as nacnac, have played an important role in the synthesis of novel pnictogenium complexes. Results show that through manipulation of the halide precursor, reaction stoichiometry, and the R substituent on the nacnac both N, N'- and N, C'-metal chelated complexes can be achieved. Additionally, â-ketiminato ligands, [RN(H)(C(Me))2C(Me)=O] where R = Dipp, and [RN(H)C(Me)CHC(Me)=O] where R = C2H4NEt2, have been studied. Both ligands were investigated with a range of d and p block metal halides and alkyls in order to compare and contrast the bulky, flexible, and even multi-dentate nature of each ligand. The preferred metal geometry remains constant for products with either ligand, but the steric protection offered by the individual ligands governs the nuclearity of the products, ranging from tetrameric cages to simple adducts. The formamidinate ligand, [RN(H)C(H)NR] where R = Dipp, was employed in synthesizing several aluminum and zinc complexes. In addition to their numerous applications as cata.
![Synthesis and Structural Characterization of Main-group Metal Complexes of a Substituted-fulvalene Ligand, 5,14-H-bisindeno [2,3-F, H] Naphthalene PDF](https://books.google.com/books/content/images/frontcover/wzB9NwAACAAJ?fife=w80-h100)
Author: Dennis Malaba
Publisher:
ISBN:
Category : Ligands
Languages : en
Pages : 496
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Author: Timothy Michael Erasmus Jugovic
Publisher:
ISBN: 9780355341706
Category :
Languages : en
Pages : 132
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Presented in this thesis is the synthesis and characterization of two new classes of mixed donor ligands, as well as several copper(II) and nickel(II) complexes. Chapter II details the synthesis and characterization of thiosemicarbazates, which are tridentate ONS (oxygen, nitrogen, sulfur) donor compounds. In Chapter III complexes of these thiosemicarbazate ligands with nickel(II) and copper(II) are prepared and characterized. Chapter IV discusses the synthesis and characterization of several different amidothiocrown and amidoazathiocrown ethers.
Author: Lai Fong Yeung
Publisher:
ISBN:
Category : Metal complexes
Languages : en
Pages : 294
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![Synthesis and Structural Characterization of Mono- and Dinuclear Transition Metal Complexes Containing the Tetraaza-[14] Annulene Ligand PDF](https://books.google.com/books/content/images/frontcover/FVNAOAAACAAJ?fife=w80-h100)
Author: Joanna Czuchajowska-Wiesinger
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ISBN:
Category : Transition metal complexes
Languages : en
Pages : 362
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Category :
Languages : en
Pages :
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Chapter 5 describes two multidentate, L3X type ligands, which feature [CN3] and [CNO2] donors, namely tris(2 pyridylseleno)methane, [Tpsem]H, and bis(2-pyridonyl)(pyridin-2-yloxy)methane, [O-poBpom]H. They have been synthesized, characterized, and employed in the synthesis of zinc and cadmium complexes. Chapter 6 describes the synthesis and structural characterization of a new [Tp] ligand featuring an allyl substituent on the central boron atom, namely [allylTpBut]Li is reported. The compound reacts steadily with CH3CH2SH under 350 nm UV light via a thiol-ene click reaction. The resulting [CH3CH2S(CH2)3TpBut]Li complex can further react with metal halide. For example, the reaction of [CH3CH2S(CH2)3TpBut]Li with ZnI2 produced [CH3CH2S(CH2)3TpBut]ZnI at room temperature. This study provides a simple model on the immobilization of [Tp] metal complexes to the polymer chains with -SH terminals.
Author: Robert Stephen Gall
Publisher:
ISBN:
Category : Chemical bonds
Languages : en
Pages : 390
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Author: Marcel Gielen
Publisher: John Wiley & Sons
ISBN: 0470758082
Category : Science
Languages : en
Pages : 752
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Tin chemistry retains a place in contemporary science as an important element owing to its wide range of applications. New and exciting research is being generated on an annual basis from all parts of the world – the study of tin and its compounds attracts considerable interest from a range of perspectives such as organic synthesis, medicine, materials chemistry, catalysis and environment. Tin Chemistry – Fundamentals, Frontiers and Applications collects, in one comprehensive volume, authoritative and concise snapshots of modern tin chemistry in a full range of applications. Over forty of the leading tin chemistry experts have contributed reviews in six themes: fundamentals in tin chemistry materials chemistry and structural chemistry of tin compounds medicinal and biocidal applications of tin compounds tin in the environment tin in organic synthesis tin in catalysis Tin Chemistry – Fundamentals, Frontiers and Applications is an essential overview of modern perspectives on this important element for the specialist and non-specialist alike. It will promote cross-disciplinary interactions and at the same time be an essential teaching resource for advanced university classes.
