Download or read book Coordination Chemistry of a New Tridentate Thioehter i e Thioether Ligand written by Hing Wan Yim and published by . This book was released on 2001 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: A new tridentate thioether ligand, methyltris[(methylthio)methyl]silane MeSi(CH2SMe)3, has been synthesized with the goal of investigating the coordination chemistry of acyclic polythioethers. This ligand represents the first member of a new family of face-capping, tridentate thioether ligands which are related to the well known macrocyclic thioether 1,4,7-trithiacyclononane and also to the anionic tetrakis[(methylthio)methyl]borates. Initial reactivity studies of the newly synthesized thioether ligand resulted in the successful isolation and structural characterization of the complete series of group 6 carbonyl derivatives ([eta symbol3]-MeSi(CH2SMe)3)M(CO)3(M = Cr, Mo, W). The copper(I) coordination polymers Cu3(MeSi(CH2SMe)3)2X3(X = Cl, Br) and [(MeSi(CH2SMe)3)Cu(NCMe)]Y (Y = OSO2CF3, BF4, PF6) were isolated by reacting CuX or [Cu(NCMe)4]Y, respectively, with the ligand. The reaction of the ligand in a 1:1 molar ratio with CuI yielded (MeSi(CH2SMe)3)CuI, which has been structurally characterized and found to form a dimer in the solid state. Related silver(I) derivatives based on the thioether ligand were also synthesized and characterized. The investigation of the behavior of these complexes in acetonitrile solution was conducted using electrospray ionization mass spectrometry (ESI-MS). Reactions of the ligand with BiX3(X = Cl, Br) afforded complexes of stoichiometry Bi2(MeSi(CH2SMe)3)2X6 and the chloride derivative was also found to be polymeric.
Download or read book Coordination Chemistry of Thioether Ligands written by Huikang Wu and published by . This book was released on 1992 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Coordination Chemistry of Some Multidentate Thioether Ligands written by Simon C. Rawle and published by . This book was released on 1988 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Coordination Chemistry of Some Multidentate Thioether Ligands written by David James White and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Coordination Chemistry of Some Multidentate Thioether Ligands written by Simon C. Rawle and published by . This book was released on 1988 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mononuclear and Dinuclear Group Six Metal Comlplexes with a New Tetradentate Thioether written by Susana Angelica Islas and published by . This book was released on 2002 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: The new acyclic tetradentate thioether ligand tetrakis[(methylthio)methyl]silane, has been synthesized with the goal of studying its coordination chemistry and comparing it with that of the recently prepared methyltris[(methylthio)methyl]silane, and other tridentate or tetradentate thioethers. This new tetradentate ligand was coordinated to the group 6 transition metals to give a complete series of thioether carbonyl complexes, where the sulfur ligand is bound to the metal center in either a bidentate or tridentate fashion. The dinuclear compounds were obtained from the reaction of LM(CO)4 and [Cu(NCMe)4]X (X = BF4 or PF6) in a 2:1 ratio, with the thioether serving as a bridging ligand between the two metals. Furthermore, six and seven-coordinated dihalo thioether complexes have also been prepared and structurally characterized.
Download or read book Group Six Metal Complexes with New Bulky Multidentate Thioethers written by Wanda Nicole Holmes and published by . This book was released on 2002 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: The new thioethers MeSi and Si have been synthesized with the goal of investigating the effect of the tert-butyl substituents on their structure and coordination chemistry. These tridentate or tetradentate ligands are new members of existing families of acyclic thioethers. Reactivity studies of these newly synthesized ligands were performed by coordinating them to group 6 metal carbonyl derivatives. These complexes have been compared with the group 6 metal complexes of other thioether ligands to determine the electronic and steric differences that the tert-butyl group may cause. Spectroscopic and X-ray diffraction studies were performed to determine those effects.
Download or read book Steric Control in Copper I Thioether Coordination Chemistry written by Keily Heredia and published by . This book was released on 2006 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The tetradentate thioether Si(CH[subscript]2SBu[superscript]t)[subscript]4 was used to synthesize the complete series of copper(I) complexes Cu[subscript]2Si(CH[subscript]2SBu[superscript]t)[subscript]4X[subscript]2 (X = C1, Br, I). Interestingly, a single X-ray diffraction study of the chloro derivative revealed the presence of both four-coordinate tetrahedral and three-coordinate trigonal planar copper centers. The adamantyl-substituted dithioether Me[subscript]2Si(CH[subscript]2SAd)[subscript]2 has been readily synthesized and it is the first member of the Me[subscript]2Si(CH[subscript]2SR)[subscript]2 (R = alkyl, aryl) family of ligands to be structurally characterized. Reactivity studies towards monovalent coinage metal ions have produced simple 1:1 and 1:2 complexes {Me[subscript]2Si(CH[subscript]2SAd)[subscript]2}CuX (X = C1, Br, I), and [Cu{Me[subscript]2Si(CH[subscript]2SAd)[subscript]2}[subscript]2]PF[subscript]6. Significantly, the bulky substituents on the thioether preclude the generation of polymeric species such as those isolated for R = Me and result instead in the formation of rare examples of three-coordinate trigonal planar Cu(I) thioether complexes. Furthermore, these are the first such complexes exhibiting [CuS[subscript]2X] coordination spheres. In a similar vein, the dinuclear gold complexes Au[subscript]2{Me[subscript]2Si(CH[subscript]2SAd)[subscript]2}X[subscript]2 (X = C1, Br), each of which displays a fairly strong intramolecular Au...Au aurophilic interaction, are obtained instead of the polymeric species isolated for closely related but less sterically demanding thioether ligands [e.g., Me[subscript]2Si(CH[subscript]2SMe)[subscript]2]. The new complexes have been characterized by a variety of analytical and spectroscopic techniques, including electrospray ionization mass spectroscopy (ESIMS). An overview of the coordination chemistry of Me[subscript]2Si(CH[subscript]2SAd)[subscript]2 towards other transition metal ions such as Ag(I), Cd(II) and Hg(II) will be also discussed.
Download or read book Coordination Chemistry of Crown Thioethers written by Weimin Liang and published by . This book was released on 1994 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coordination Chemistry of Noncyclic and Macrocyclic Thioether diazine Polydentate Ligands written by Liqin Chen and published by . This book was released on 1993 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Preparation Characterization and Coordination Chemistry of Cyclic Tridentate Ligands written by Peter M. Schaber and published by . This book was released on 1980 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Coordination Chemistry of Tripodal Thioether pyrazole Ligands and Their Applications to Modeling Reactivity of Zinc Thiolate Enzymes written by Show-Jen Chiou and published by . This book was released on 2004 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Coordination Chemistry of Fluorinated alcohol Thioethers written by René Theodoor Boeré and published by . This book was released on 1984 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conducting Metallopolymers with Tridentate Ligands and Coordination Chemistry with Corresponding Model Compounds written by Şeyma Keskin and published by . This book was released on 2018 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conducting polymers that contain metals are remarkable materials, because they have the properties of both organic backbones and metals. Depending on the position of the metal relative to the conjugated backbone, i.e. attached to or directly in the backbone, these two can couple resulting in advancement of the functionality and therefore potential applications of these types of materials. Complexes of tridentate ligands with donor atoms such as phosphorus, nitrogen, and sulfur also have a wide variety of applications. In addition, complexes of tridentate ligands have advantages of stability and control of electron density by variation of donor atoms. Therefore, conjugated polymers with tridentate ligand units will have promise for various applications and advantages in their designs. Many types of PNP ligands have been studied in the literature because the hemilabile property of the nitrogen atom promotes some catalytic reactions and gives different coordination geometries. Complexes of a PNP ligand with molybdenum and carbonyl ancillary ligands were synthesized and characterized. Isomerization and conversion reactions between them were investigated as well as the coordination modes. Conducting polymers can be used as redox-active ligands and they can be used to control electron density on the metal attached to them. Synthesis and characterization of a novel polymerizable ligand 3,5-bis-EDOT-N,N-bis[2-diphenylphosphinoethyl]aniline was achieved. Related molybdenum complexes with ancillary ligands as carbonyls were also synthesized and characterized. Monomer complexes and the free ligand were electropolymerized and studied. Tris(bipyridine)ruthenium(II) chloride and analogous complexes have been studied extensively in the literature due to their luminescent and photochemical properties, and excited state lifetimes. Conducting polymers with similar ruthenium groups have been investigated for various applications. Synthesis of ruthenium complexes with 2,6-Bis[4-[2-(3,4-diethylenedioxy)thiophene]pyrazol-1-yl]pyridine and four different bidentate ligands were reproduced; electropolymerizations of the complexes were achieved; electrochemical, UV-Vis and luminescence studies were performed and discussed. Various complexes of copper, silver, platinum, and palladium with nitrogen and phosphorus donors have been reported for their luminescence behavior as well as their interesting structures. Model complexes of these metals with a PNP ligand have been synthesized and characterized. Absorption and luminescence behaviors as well as the coordination modes were investigated.
Download or read book Synthesis and Coordination Chemistry of Crown Thioether 20S6 2OH written by Corbin K. Ralph and published by . This book was released on 2000 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Coordination Chemistry of an N heterocyclic Carbene containing Tridentate Ligand written by Bryan Kenneth Shaw and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Coordination Chemistry of New Multidentate Ligands written by Nawal K. Al-Rasbi and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
