Synthesis and Structural Characterization of Divalent Metal Complexes Supported by Guanidinato Ligands PDF Download
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Author: Lai Fong Yeung
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Category : Metal complexes
Languages : en
Pages : 294
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Author: Lai Fong Yeung
Publisher:
ISBN:
Category : Metal complexes
Languages : en
Pages : 294
Get Book Here
Book Description
Author:
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Languages : en
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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
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Category : Ligands
Languages : en
Pages : 496
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Author: Delong Zhang
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Category :
Languages : en
Pages : 606
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Languages : en
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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.
![The Synthesis and Structural Characterization of Main Group and Lanthanide Metal Compounds Supported by the Multidentate [N3C] Donor Ligand Tris[(1-isopropylbenzimidazol-2-yl)dimethylsilyl]methyl, [TismPriBenz]M PDF](https://books.google.com/books/content/images/frontcover/EwFc0AEACAAJ?fife=w80-h100)
Author: David Alexander Vaccaro
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Category :
Languages : en
Pages : 0
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Lastly, the ability of the [TismPriBenz]Zn halide series to form ion pair complexes was investigated. [TismPriBenz]ZnI can react with ZnI2 to afford {[TismPriBenz]Zn}2[Zn3I8], which contains the novel zinc halide species [Zn3I8]2−. Additionally, all of the [TismPriBenz]ZnX (X = Cl, Br, I) complexes are able to react with excess ZnX2 in THF to give the series {[TismPriBenz]Zn}[Zn(THF)X3].
Author: Ramesh Duraisamy
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Languages : en
Pages :
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Author: Fatimah Alqahtani
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Languages : en
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Author: Robert M. Pupi
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Category : Metal complexes
Languages : en
Pages : 158
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Author:
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Languages : en
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