Download or read book The Characterization and Reactivity of Tris 4 methylpyrazolyl methane and Its Tungsten and Molybdenum Metal Complexes written by Julia M. Pomeroy and published by . This book was released on 2020 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The scorpionate ligand tris(pyrazolyl)borate (Tp) has contributed to the understanding of coordination and organometallic chemistry and has proven to be useful in the synthesis of metalloprotein models. Studies focusing on the similar ligand, tris(pyrazolyl)methane (Tpm), have recently been made possible with improved synthetic techniques. Characterization of the Tpm ligand and its metal derivatives, [TpmW(CO)3L]+ and [TpmMo(CO)3L]+, unveiled unexpected activity in the 1H NMR chemical shift of the methane hydrogen after the coordination of a seventh ligand. The more electronegative the seventh ligand was, the more downfield the chemical shift appeared. Various analogs of Tpm have since been synthesized that substitute methyl groups on different positions of the pyrazolyl rings and the effect of these substitutions on the methane hydrogen was examined. This work successfully synthesized an analog of Tpm(4-methyl) and its metal complexes of Tpm(4-methyl)W(CO)3 and Tpm(4-methyl)Mo(CO)3. The reactivity of Tpm(4-methyl)M(CO)3 (M = W or Mo) was observed and FTIR, 1H NMR, and 13C NMR were used for the characterization of [Tpm(4-methyl)M(CO)3L]+[X]- (L = H, I, or Br; X = counterion). The chemical shift of the methane hydrogen was further examined and determined to follow the same trend seen in the previously reported Tpm metal complexes"--Leaf 1.
Download or read book Groups IV V and VI Transition Metals and Compounds written by T. F. Connolly and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: responsibility.) To Betty Edwards and Emily Copenhaver my thanks for what must have seemed endless typing, retyping and correcting of these bibliographies over a span of years. Availability of Documents U. S. Government contractor reports, usually identified by an alpha-numeric report number, can be purchased from National Technical Information Service U. S. Department of Commerce Springfield, Virginia 22151 and, often, on request from the issuing installation. USAEC reports are also available from International Atomic Energy Agency Kaerntnerring A 1010 Vienna, Austria National Lending Library Boston Spa England Monographs and reports of the National Bureau of Standards are for sale by Superintendent of Documents U. S. Government Printing Office Washington, D. C. 20402 Theses, listed as Dissertation Abstracts + number, are available in North or South America from University Microfilms Dissertation Copies P. O. Box 1764 Ann Arbor, Michigan 48106 and elsewhere from University Microfilms, Ltd. St. John's Road Tylers Green Penn, Buckinghamshire England Other Information Centers and New Journals New journals Information centers Field and and other sources serials Ultra purification 4, 8, 11, 13, 15, 16,19, 20, 9,11,15, 24, 31, 32 and 21, 28, 30, 32, 33, 42, 58, 59 crystal growth ix Preface Field Information centers New journals and and other -sources serials Characterization Miscellaneous 3,4, 8, 11, 13, 16, 19, 20, 1,3,4,8,11,15,17, 21, 26, 28, 30, 31, 32, 33, 35, 24, 25, 28, 29, 30, 31, 37, 38, 39, 40, 42, 46, 53, 56, 32 58, 60, 61, 62
Download or read book Synthesis Characterization and Reactivity of Transition Metal Complexes Containing Multi donor Ligands written by John C. Linehan and published by . This book was released on 1986 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tungsten Complexes Containing Metal carbon Multiple Bonds written by Tsz Fai Leung and published by . This book was released on 2017 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Transition Metals 1 written by Nigel Saunders and published by Heinemann Educational Publishers. This book was released on 2003 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Uses a common or well-known element to look at the groups of the periodic table and to show the similarities and differences between elements.
Download or read book Synthesis and Reactivity of Tungsten Tris tri tertbutyl Silyl Imido Complexes Neutral and Anionic Derivatives Indirect Evidence for the Intermediacy of Metal alkane Complexes in Solution written by Daniel Francis Schafer (II.) and published by . This book was released on 1999 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: The molecular structures of 1-H, 1-Me, 1-$\rm\sp{c}C\sb3H\sb4Me, $ 1-CH=C=CH$\sb2,$ 2-py, (2-KH) $\sb2,$ 2-$\rm KH{\cdot}(OEt\sb2)\sb3,$ (K(crypt-2,2,2)) ($\rm(\sp{t}Bu\sb3SiN)\sb3WH\rbrack$ (2-K(C222)H), (2-KI) $\sb3,$ (3-Cl) $\sb2,$ and 4-$\rm Li\sp{n}Bu$ were determined by X-Ray crystallography.
Download or read book Synthesis and Characterization of Chiral Tris pyrazolyl Methane Tpm Ligands written by Peng Li and published by . This book was released on 2005 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores and develops synthetic methodologies for the preparation of chiral tris (pyrazolyl) methane (Tpm) ligands. Several chiral tris (pyrazolyl) methane ligands have been successfully synthesized and characterized by three different approaches; some of them have been made into transition metal complexes.
Download or read book Structure and Reactivity of Tungsten and Molybdenum Complexes written by F. P. McCullough and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tungsten and Molybdenum Oxo Complexes of Tetrakis phenyldiazenyl calix 4 arene Substituted Derivatives written by and published by . This book was released on 1996 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of Tungsten IV and Tungsten VI Imido Complexes written by Corey B. Wilder and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of tungsten guanidinate and amidinate complexes were synthesized to serve as precursors for the metal-organic chemical vapor deposition of tungsten nitride. Compounds were characterized by 1H and 13C NMR. In addition, mass spectrometry was used for characterization as well as to give insight into precursor fragmentation tendencies. Crystallography experiments were also conducted to investigate the bonding motifs present in the series of compounds.
Download or read book Synthesis Characterization and Structure of Molybdenum and Tungsten Trinuclear Compounds with More Than Six Cluster Electrons written by Zhong Sheng Sun and published by . This book was released on 1992 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation and Characterization of High Oxidation State Tungsten and Molybdenum Complexes Containing Phenoxide Thiolate Alkyl Cyclopentadienyl and Dinitrogen Ligands written by Richard Michael Kolodziej and published by . This book was released on 1989 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Preparation and Characterization of Some Niobium Tantalum Molybdenum and Tungsten Complexes written by James Nelson Smith and published by . This book was released on 1972 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Synthesis and Reactivity of Tungsten VI Alkylidynes and Tungsten IV Complexes written by Mark L. Listemann and published by . This book was released on 1985 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis Structure and Reactivity of Tris pentamethylcyclopentadienyl Metal Complexes written by Kevin John Forrestal and published by . This book was released on 1997 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Titanium Molybdenum Ruthenium and Iron Complexes of 4 thiomethyl 4 P diphenylphosphine and 4 S methyldibenzothiophenes Synthetic Approach Toward the Indole Alkaloid Brevianamide A and B written by Anjali Pandey and published by . This book was released on 1989 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Pentacarbonyl vinylferrocene metal 0 Complexes written by Demir Nazlan and published by . This book was released on 2002 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
