Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 70 for “"Binuclear"”.
-
Bridged binuclear complexes.
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, 1972
-
Electron Transfer in Mixed-Valence Binuclear Ferrocenes
A single quadrupole-splint doublet is seen in the 4.5 K Mossbauer spectrum for the triiodide salt of 3-acetylbis-(fulvalene)diiron(1+). An IT band at 7140 cm('-1) (e = 1740 M('-1) cm('-1)) is evident in the electronic absorption spectrum. A relatively isotropic EPR signal and a C-H bending band at …
-
Studies of binuclear complexes of transition metals.
Massachusetts Institute of Technology. Dept. of Chemistry. Thesis. 1974. Ph.D.
-
Synthesis and characterization of binuclear and unsymmetrical phthalocyanines
<p>"The metal free planar binuclear phthalocyanines sharing a benzene or naphthalene ring have been synthesized and characterized. The position of Q band of binuclear phthalocyanine sharing a naphthalene ring is red shifted compared to binuclear phthalocyanine sharing a benzene ring. The compounds …
-
Pressure tuning spectroscopy of binuclear metal cluster compounds
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-02T15:43:50Z No. of bitstreams: 1 1987_Carroll.pdf: 1436938 bytes, checksum: 4ec3d27fdffa96f30d6b8f2ce6e519f3 (MD5)
-
Binuclear Transition Metal Derivatives of 1,2-Bis(indenyl)ethane
… 1,2-bis(indenyl)ethane in xylene provided the binuclear compounds Ru2(CO)4(mu-(eta 5-C9H6)2C2H4 and [(eta5-C9H6)C2H 4(C9H7)Ru(CO)2]2. The corresponding reaction in heptane gave instead the tetranuclear cluster [Ru4H(CO) 9(mu3-eta2-eta2-eta 5-C9H6)](C2H4)(C 9H7). The structure of the rac form of …
-
Mossbauer studies of spin coupled binuclear iron centers in proteins
The mixed valence centers of the diiron-oxo proteins uteroferrin and nitrosyl derivatives of hemerythrin have been studied by Mossbauer Spectroscopy. Simulations of data recorded in applied fields for the 4.2 K to 250 K temperature range have been performed with the intrinsic spin Hamiltonian $\rm …
-
Magnetic Exchange Interactions and Mixed Valence Chemistry in Binuclear Transition Metal Complexes
Binuclear transition metal complexes are of interest because they provide a simple system in which metal-metal interactions can be studied. The importance of understanding these interactions can be seen when one considers the myriad systems which possess such interactions: biological enzymes s
-
Magnetic and Electronic Properties of Transition Metal Systems: Binuclear Complexes, the Ferricenium Ion
Made available in DSpace on 2014-12-10T23:02:02Z (GMT). No. of bitstreams: 1 7511571.pdf: 22470020 bytes, checksum: bd1694fbf49bb60e657707858f0c090c (MD5) Previous issue date: 1974
-
The synthesis and reactivity of binuclear μ-hydrocarbyl complexes of some transition metals
… of the type HO(CH₂)nOH. In a separate study, the binuclear μ-phthaloyl compounds of manganese, rhenium,iron,molybdenum,cobalt and rhodium were prepared and characterized. The phthaloyl compounds of manganese, rhenium and iron were decarbonylated to form the corresponding μ-phenylene compounds. The …
-
Binuclear Cobalt(ii) Complexes and Catalysis Studies on Cobalt(ii) Oxygen Carriers and Charcoal-Supported Palladium
Made available in DSpace on 2014-12-10T23:01:57Z (GMT). No. of bitstreams: 1 7500389.pdf: 4107811 bytes, checksum: 441b7b8de9b56a28cff4edf09a0bc1ad (MD5) Previous issue date: 1974
-
Examining the Proton Channels in Heme -Copper Oxidases
… occurs because an electron cannot enter the binuclear center without a proton to maintain the charge balance. If electrons cannot enter the binuclear center then the rate of reduction of the binuclear center is impaired. The E II-101 mutant enzymes had apparent first order rate constants, for …
-
Electrolyte Effects on the Kinetics of Comproportionation Electron-Transfer Reactions and on Intervalence Charge-Transfer Band Energies of Binuclear Ruthenium Ammine Complexes
<p>Chapter 1 describes an overview of electron-transfer reactions. The kinetic equations for ET reactions have also been described in detail.</p> <p>Chapter 2 describes a series of novel kinetic accelerations which deviate strongly from the predictions of the classical Debye-Huckle theory with a …
-
Binuclear Complexes of Cobalt, Nickel and Copper and Activation of Molecular Oxygen by Transition Metal Complexes in the Oxidation of Olefinic Substrates
Made available in DSpace on 2014-12-13T20:09:58Z (GMT). No. of bitstreams: 1 7709055.pdf: 4856134 bytes, checksum: 33a333b8f959b1029c7be8ab0727cb9a (MD5) Previous issue date: 1976
-
Biochemical Studies on the Catalytic Cycle of Cytochrome C Oxidase in Rhodobacter Sphaeroides
… reveals two proton channels leading to the binuclear center. (Iwata, S., Ostermeier, C., Ludwig, B., & Michel, H. (1995) Nature 376, 660--669) One channel is referred to as the K-channel after the highly conserved lysine-362 located within it. The other channel is similarly referred to as …
-
Part One. Electron Spin Resonance Study of Quadrupole Coupling in Copper(ii) Complexes. Part Two. Triplet State Esr Spectra of Binuclear Vanadyl(iv) Tartrates
Made available in DSpace on 2014-12-09T17:36:51Z (GMT). No. of bitstreams: 1 7021067.pdf: 2769883 bytes, checksum: debee4eea50e0a303315992999a60975 (MD5) Previous issue date: 1970
-
Characterisation of phenol hydroxylase and its auxiliary proteins, DmpM and DmpK, from pseudomonas spl Strain CF600
… catalysis; and DmpLNO, an oxygenase containing a binuclear iron cluster. The oxygenase requires an accessory protein, DmpK, for diiron cluster assembly. This thesis describes the characterisation of DmpM, DmpK, and DmpLNO. DmpM was found to exist in two forms. DmpM purified from the native strain …
-
Photochemical synthesis and characterization of mono- and bi-nuclear tungsen tetracarbonyl complexes of 2,2'-biquinoline and 2,3-bis(2- pyridyl) pyrazine
The mononuclear and binuclear complexes of the type [W(CO)4JL] and [{W(CO)4}2]L, where L= 2,3-bis(2-pyridyl)pyrazine(BPPX 2,2' -biquinoline^QN), 2,2,-bipyrimidine(BPY]Vf)J and 2,2'-bipyidine(BPY), have been synthesized by direct photolysis of the metal hexacarbonyl and indirect route via THF …
-
Current understanding on cytochrome bd quinol oxidase of Escherichia coli a mutagenesis, kinetics and spectroscopic study
… from cytoplasm to the heme b595 / heme d binuclear center. With help of the increasing database of available cytochrome bd oxidase sequences, site-directed mutagenesis studies were carried out on the highly conserved residues of the enzyme. Mutations on two highly conserved acidic residues …
Page 1 of 4