Download or read book The Synthesis and Characterization of Cyclopentadienyl Metal Cluster Complexes written by James Douglas Sinclair and published by . This book was released on 1972 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis Characterization and Analysis of Structure and Bonding Modes in Cyclopentadienyl Transition Metal Cluster Containing Group 15 Fragments written by James Robert Harper and published by . This book was released on 1990 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transition Metal Carbonyl Cluster Chemistry written by Paul J. Dyson and published by CRC Press. This book was released on 2000-11-17 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transition metal carbonyl clusters (TMCCs) continue to inspire great interest in chemical research, as much for their fascinating structures as for potential industrial applications conferred by their unique properties. This highly accessible book introduces the bonding, structure, spectroscopic properties, and characterization of clusters, and then explores their synthesis, reactivity, reaction mechanisms and use in organic synthesis and catalysis. Transition Metal Carbonyl Cluster Chemistry describes models and rules that correlate cluster structure with electron count, which are then applied in worked examples. Subsequent chapters explain how bonding relates to molecular structure, demonstrate the use of spectroscopic techniques such as NMR, IR and MS in cluster chemistry, and outline the factors contributing to the stability, dynamics and reactivity of clusters. The second part of this book discusses the synthesis and applications of TMCCs. It emphasizes the differences between the reactivities of clusters vs. mononuclear metal complexes, contingent to the availability of multiple-bonding sites and heterosite reactivity. The final chapters discuss reactions in which clusters act as homogeneous catalysts; including discussion on the use of solid and biphasic liquid-liquid supported clusters in heterogeneous catalysts. A useful reference for those commencing further research or post-graduate study on metal carbonyl clusters and advanced organometallic chemistry, this book is also a cornerstone addition to academic and libraries as well as private collections.

Download or read book The Synthesis and Characterization of Oligocyclopentadienyl and Oligoalkynyl Transition Metal Complexes written by Ian Martin Wasser and published by . This book was released on 1998 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Aminechelated Lithio Cyclopentadienyl Transition Metal Complexes and the 1 2 3 4 tetraphenylcyclobutenyl Monoanion written by Robert Ivan Mink and published by . This book was released on 1977 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Physicochemical Characterization of Several Cyclopentadienyl Nickel Clusters and the Platinum 38 Carbonyl Cluster written by Mark Alan Murphy and published by . This book was released on 1982 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Structural Characterization of Some Novel Organometallic Sulfur Cluster Complexes written by Phillip James Vergamini and published by . This book was released on 1972 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis Characterization and Reactivity of Cyclopentadienyl Iron sulfur Cluster Compounds written by Wouter van den Berg and published by . This book was released on 1996 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Bis cyclopentadienyl Uranium IV Complexes written by Anita L. Arduini and published by . This book was released on 1978 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reagent, Cp2U(NEt2)2, was formed from a reaction of U(NEt2)4 with cyclopentadiene. The reactive nature of the uranium-nitrogen bonds in the starting tetrakisamide complex was retained by Cp2U(NEt2)2. This compound underwent both acid displacement and insertion type reactions to yield a variety of pseudo-six-coordinate complexes of the formula, Cp2U(chelate)2 where chelate = 02CNEt2, OSCNEt2 r S2CNEt2, C>2CPh, C>2CMe, 02CCMe3, OSCPh, OSCMe, cis-(OCMe)(OCCHMe2)Re(CO)4, cis-(OCMe)2Re(CO)4. The compounds, Cp2U(OSCNEt2)2, Cp2U(S2CNEt2)2, and Cp2U(OSCPh)2 were monomeric, Cp2U(02CCMe3)2, dimeric and Cp2U(02CNEt2)2, polymeric in solution, as determined from molecular weight measurements. The spectroscopic data of the compounds are consistent with the designated chelate coordination of the ligands and a pentahapto bonding mode for the cyclopentadienyl rings. The complexes are considered to have octahedral geometry with the ligands and Cp rings in mutually cis positions. The variable temperature NMR data of Cp2U(OSCNEt2)2, Cp2U(S2CNEt2)2, Cp2U(OSCPh)2, and Cp2U[cis-(OCMe)2Re- (CO)4]2 indicated that metal-centered rearrangement processes were averaging non-equivalent environments of the chelate ligands. The carbamates were also assumed to have restricted rotation about the carbon-nitrogen bonds. The AG^ value for the rearrangement in Cp2U[cis-(OCMe)2Re(CO)4]2 was calculated to be 13.5 ± .5 kcal/mole in toluene and 13.7 ± .4 kcal/mole in CH2C12 at a coalescence temperature of 35°C. The rearrangements in the other complexes were still proceeding rapidly even at the lowest accessible temperatures. The dimeric structure of Cp2U(C^CCMe^)2 was assumed to contain four symmetrically bridging carboxylate ligands as the NMR data only showed one methyl resonance. The reagent, Cp2U(NEt2)2, underwent aminolysis reactions with HNPh2, HNC^H^, HNC^H2Me2 and HNC^Me^(COOEt). The compounds, Cp2U(NEt2)(NPh2) and Cp2U[NC^Me^(COOEt)]2 were isolated in a pure form whereas the other pyrroles gave mixtures of mono- and bis-substituted complexes. Attempts to make dichloro containing compounds of the type C1.2U(NR2)2 from UCl^ and the lithio or potassio salts of amines were not completely successful. Although pure Cl~U[N (C ,H, ..)_]_ was obtained, the other complexes, £ b 11 z ^ C12U[N(SiMe^)2]2 and Cl2U(NEt2)2' were contaminated with the trisamide compounds, C1U(NR2)2* Subsequent reactions with cyclopentadiene did not produce pure Cp2UCl2 but mixtures of Cp2UCl2 and Cp^UCl.

Download or read book Synthesis of Tetrahedral Mixed Metal Clusters of the Iron Triad Preparation and Characterization of H2FeRu2Os CO 13 and H2FeRuOs2 CO 13 written by Gregory L. Geoffroy and published by . This book was released on 1977 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transition metal cluster complexes have become a very important class of compounds, principally because of their potential in catalysis. Clusters have been shown to behave as catalysts in their own right and they hold considerable promise for serving as models for catalytic surfaces. Clusters comprised of two or more different transition metals in the cluster framework are particularly interesting in this regard because of possible bimetallic effects. Further, mixed-metal clusters have non-equivalent bonding sites. As such they are ideally suited for modeling studies which employ variable temperature NMR to follow the movements of substrates over their surfaces. One of the problems which has hampered studies of mixed-metal clusters is their relative lack of availability. Only a very few isostructural series have been achieved, and general synthetic methods for mixed-metal clusters are lacking. Carbonylmetalates have been widely used as synthetic reagents in cluster chemistry and several of the reported reactions appear to be adaptable to design. This is particularly true of the reactions of Knight and Mays who prepared a series of Group 7 - Group 8 tetrameric mixed-metal clusters through the addition of a carbonylmetalate to a closed M3(CO)12 trimer.

Download or read book The Synthesis and Characterization of Cyclopentadienylsilver and Cyclopentadienylcopper Complexes written by Linda Lettko and published by . This book was released on 1995 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of 3d metal Carboxylate Clusters written by E. Carolina Sañudo and published by . This book was released on 2003 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Transition Metal Carbonyl Clusters written by Frederic Roy Furuya and published by . This book was released on 1986 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Metal Complexes written by Goitom Gebeyohannes Berhe and published by LAP Lambert Academic Publishing. This book was released on 2020-05-23 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vicinal dioximes have also been widely investigated as analytical reagents, compounds having columnar stacking are thought to possess semiconducting properties and, recently in macrocyclization reactions. Both the presence of mildly acidic hydroxy groups and slightly basic nitrogen atoms make (E, E)-dioximes amphoteric ligands which form corrin-type square-planar, square-pyramidal and octahedral complexes with some transition metal ions such as nickel (II), cobalt(II), copper(II), palladium(II) and cobalt(III) as central metal atoms

Download or read book Synthesis and Stereochemical Analysis of Triangular Nickel Cyclopentadienyl carbonyl Clusters and Cyclopentadienyl Nickel Tetrathiooxalato Complexes written by Joseph James Maj and published by . This book was released on 1981 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis Chemical and Structural Characterization of Several Cobalt and Iron Carbonyl Clusters written by Robert Ethan Ginsburg and published by . This book was released on 1978 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Structural Characterization of Monocyclopentadienyl Aryloxy and Amido Group 4 Metal Complexes written by Robert M. Pupi and published by . This book was released on 1994 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: