Download or read book Synthesis and Characterization of Tridentate Amido Ligand Derivatives of Early Transition metals written by Abdul-Razak Habib Al-Soudani and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Tridentate Amido Ligand Derivaties of Early Transition metals written by Abdul-Razak Habib Al-Soudani and published by . This book was released on 1992 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis Characterization and Reactions of Early Transition Metal Complexes with a Tetraaza macrocyclic Ligand written by Judith A. Ladd and published by . This book was released on 1982 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low coordinate First Row Early Transition Metal Complexes Stabilized by Modified Terphenyl Ligands written by Jessica Nicole Boynton and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The research in this dissertation is focused on the synthesis, structural, and magnetic characterization of two-coordinate open shell (d1-d4) transition metal complexes. Background information on this field of endeavor is provided in Chapter 1. In Chapter 2 I describe the synthesis and characterization of the mononuclear chromium (II) terphenyl substituted primary amido complexes and a Lewis base adduct. These studies suggest that the two-coordinate chromium complexes have significant spin-orbit coupling effects which lead to moments lower than the spin only value of 4.90 [mu]B owing to the fact that [lambda] (the spin orbit coupling parameter) is positive. The three-coordinated complex 2.3 had a magnetic moment of 3.77 [mu]B. The synthesis and characterization of the first stable two-coordinate vanadium complexes are described in Chapter 3. The values suggest a significant spin orbital angular momentum contribution that leads to a magnetic moment that is lower than their spin only value of 3.87 [mu]B. DFT calculations showed that the major absorptions in their UV-Vis spectra were due to ligand to metal charge transfer transitions. The titanium synthesis and characterization of the bisamido complex along with its three-coordinate titanium(III) precursor are described in Chapter 4. Compound 4.1 was obtained via the stoichiometric reaction of LiN(H)AriPr 6 with the Ti(III) complex TiCl3 *2NMe3 in trimethylamine. The precursor 4.1 has trigonal pyramidal coordination at the titanium atom, with bonding to two amido nitrogens and a chlorine as well as a secondary interaction to a flanking aryl ring of a terphenyl substituent. Compound 4.2 displays a very distorted four-coordinate metal environment in which the titanium atom is bound to two amido nitrogens and to two carbons from a terphenyl aryl ring. This structure is in sharp contrast to the two-coordinate linear structure that was observed in its first row metal (V-Ni) analogs. The synthesis and characterization of mononuclear chromium(II) terphenyl primary substituted thiolate complexes are described in Chapter 5. Reaction of the terphenyl primary thiolate lithium derivatives LiSAriPr4 and LiSArMe6 with CrCl2THF2 in a 2:1 ratio afforded complexes 5.1 and 5.2, which are the very rare examples of chromium(II) thiolates with quasi-two-coordination at the metal center. Both deviate from linearity and have S-Cr-S angles of 111.02(3)° and 107.86(3)° with secondary Cr-C(aryl ring) interactions of ca. 2.115 Å and 1.971 Å respectively. The initial work on titanium and vanadium terphenyl thiolates is described in Appendix I and II. In Chapter 6 I show that the reaction of K2COT (COT= 1,3,5,7-cyclooctatetraene, C8H8) with an aryl chromium(II) halide gave (CrAriPr4)2([mu]2-n3:n4-COT) (6.1) in which a non-planar COT ring is complexed between two CrAriPr4 moieties -- a configuration previously unknown for chromium complexes of COT. OneCr2+ ion is bonded primarily to three COT carbons (Cr--C= 2.22-2.30 Å ) as well as an ipso carbon (Cr-C= ca. 2.47 Å) from a flanking aryl ring of its terphenyl substituent. The other Cr2+ ion bonds to an ipso carbon (Cr-C= ca. 2.53 Å) from its terphenyl substituent as well as four COT carbons (Cr--C= 2.24-2.32 Å). The COT carbon-carbon distances display an alternating pattern, consistent with the non-planarity and non-aromatic character of the ring. The magnetic properties of 6.1 indicate that the Cr2+ ions have a high-spin d4 configuration with S = 2. The temperature dependence of the magnetism indicates that their behavior is due to zero-field splitting of the S = 2 state. Attempts to prepare 6.1 by the direct reaction of quintuple-bonded (CrAriPr4)2 with COT were unsuccessful. (Abstract shortened by UMI.) --Proquest.

Download or read book Synthesis and Characterization of 1 1 dicarbodiimidoferrocenes written by Orhi Esarte Palomero and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The initial synthesis and characterization of a new family of amido-bis(amidate) early transition metal compounds has lead to the development of a new class of 1,1’-dicarbodiimidoferrocene proligands. These proligands and related 2,4-diimino-1,3-diazetidine compounds are useful precursors for 1,1’-bis(guanidinate)ferrocene early transition metal complexes exhibiting novel reactivity. Additionally, 1,1’-dicarbodiimidoferrocenes can be utilized, in the form of boramidinates, to study the reactivity of boramidinate frustrated Lewis pairs with boranes, CO, CO2 and other small molecules

Download or read book Synthesis and Characterization of Helical Ligand Transition Metal Complexes written by Andrew Fessak and published by . This book was released on 1995 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Synthesis Characterization and Reactivity of Novel Late transition Metal Bridging Amido and Imido Complexes written by Manoj K. Kolel-Veetil and published by . This book was released on 1995 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis Characterization and X ray Structural Studies of Octahedral Transition Metal Complexes Incorporating the Novel Anionic Tridentate Ligand Dimethyl ethanolamino 1 pyrazolyl gallate Me2Ga OCH2CH2NH N2C3H3 written by Kenneth S. Chong and published by . This book was released on 1978 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Early Transition Metal Complexes Containing Tridentate Amido Ligands written by Lan-Chang Liang and published by . This book was released on 1999 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Synthesis and Characterization of Some Transition Metal Complexes Derived from Oxime Ligands written by Gary A. Nicholson and published by . This book was released on 1980 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Binuclear and Transition Metal Complexes Incorporating the Tridentate Chelating Ligand Dimethyl N N dimethylethanolamino 1 pyrazolyl gallate written by and published by . This book was released on 1977 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Transition Metal Di tert butyl amido Compounds written by Gregory R. Potratz and published by . This book was released on 2000 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Transition Metal Complexes of the Ligand DDDT 2 5 6 Dihydro l 4 dithiin 2 3 dithiolate written by Jane Alena Hanna Welch and published by . This book was released on 1989 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of New Dithiolate Ligands and Their Transition Metal Complexes written by Geewon Chung and published by . This book was released on 1994 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Synthesis and Characterization of Transition Metal Complexes of Triazacyclododecane and Its Tri n methyl and Orthoamide Derivatives written by Steven P. VanKouwenberg and published by . This book was released on 1989 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Novel Polydentate Ligands and Transition Metal Chalcogenolates written by Nandakumar Govindaswamy and published by . This book was released on 1995 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Ligands and Transition Metal Complexes Containing M terphenyl Scaffolds written by and published by . This book was released on 2007 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: