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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 101 to 110 of 1101 (0.09 seconds)Spelling suggestions: "subject:"transitionmetal"" "subject:"transition.metal""
| 101 |
Diffraction and microscopy studies of the structure of amorphous solidsMountjoy, Gavin January 1995 (has links)
No description available.
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| 102 |
Hydrophospination of activated alkenes catalysed by platinum(O) complexes of functionalised phosphinesWorboys, Kerry January 1993 (has links)
No description available.
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| 103 |
Molybdenum, tungsten and rhodium complexes of nitrogen-oxides.Rajaseelan, Rajaratnam Edward. January 1989 (has links)
Complexes of the type MX(η²-NO₃)(CO)₂(PPh₃)₂, (M = Mo, X = Cl, Br; M = W, X = Br) were prepared from the reactions of MX₂(CO)₂(PPh₃)₂ with ammonium nitrate in acetone. The complexes were characterized by elemental analyses, ¹⁵N labelling, infrared and NMR spectroscopy. The nitrate ligand is bidentate and the complexes are seven-coordinate. Novel nitrite complexes of molybdenum and tungsten of the type M(NO₂)₂(PPh₃)₂ were prepared. The compounds were characterized by elemental analyses, ¹⁵N labelling, infrared and multinuclear NMR spectroscopy. Both NO₂ ligands are chelating and the two NO₂, PPh₃ and CO ligands are equivalent. Molybdenum dinitrosyl complexes were synthesized by the reduction of nitrate ions. The crystal structure of cis-dinitrosyl-cis-dichloro-trans-bis-(triphenylphosphine)molybdenum(II) was determined by x-ray diffraction. Both the nitrosyl groups are linear. Mo(NO)₂Cl₂(OPPh₃)₂ and Mo(NO)₂Cl(NO₃)(OPPh₃)₂ were synthesized by the reaction of MoCl(η²-NO₃)(CO)₂(PPh₃)₂ with NO in acetone/toluene mixture. The nitrosyl ligands are linear and the phosphineoxide ligands are cis to each other. The dinitrite complex Rh(NO)(NO₂)₂(PPh₃)₂ of the series Rh(NO)X₂(PPh₃)₂ (X - monodentate anions) was prepared as a direct derivative of Rh(NO)Cl₂(PPh₃)₂ by its reaction with sodium nitrite. The complex is square pyramidal with an apical nitrosyl ligand. The two NO₂ groups are present as the nitro and the nitrito group. Rh(NO)(NO₂)₂(PPh₃) reacted with oxygen and formed Rh(NO₃)₃(PPh₃)₂. The reaction of Rh(NO)(NO₂)₂(PPh₃)₂ with CO in acetonitrile produced Rh(CO)(NO₂)(PPh₃)₂. The complex Rh(CO)(NO₂)(PPh₃)₂ is square planar with the phosphine ligands in the trans positions.
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| 104 |
Novel nitrogen-sulfur chelate ligands for asymmetric catalysisJames, Daniel Stuart January 1998 (has links)
No description available.
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| 105 |
Synthesis of new axially chiral diphosphines and phosphinamines for asymmetric catalysisLong, James Maurice January 1996 (has links)
No description available.
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| 106 |
Non-pairwise potentials and defect modelling for transition metalsAckland, G. J. January 1987 (has links)
No description available.
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| 107 |
Analytical application of bacterial bioluminescenceClerc, Stephane Daniel January 1996 (has links)
No description available.
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| 108 |
Organometallic chemistry at high pressures and low temperaturesGoff, Simon E. J. January 1997 (has links)
No description available.
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| 109 |
Studies on functionalised crown thioethersSutton, Liam Richard January 1999 (has links)
No description available.
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| 110 |
Polyaza redox-active acyclic and macrocyclic compounds designed to bind cations and anionsSpencer, Paul January 1994 (has links)
No description available.
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