Sökning: "bipyridine"
Visar resultat 11 - 15 av 40 avhandlingar innehållade ordet bipyridine.
11. The Synthesis of Molecular Switches Based Upon Ru(II) Polypyridyl Architecture for Electronic Applications
Sammanfattning : According to the famous axiom known as Moore’s Law the number of transistors that can be etched on a given piece of silicon, and therefore the computing power, will double every 18 to 24 months. For the last 40 years Moore’s prediction has held true as computers have grown more and more powerful. LÄS MER
12. Electron-vibration coupling and its effects on optical and electronic properties of single molecules
Sammanfattning : The thesis is devoted to theoretical investigations of electron-vibration coupling and its effects on optical and electronic properties of single molecules, especially for molecules confined between metallic electrodes.A density-matrix approach has been developed to describe the photon emission of single molecules confined in the scanning tunneling microscope (STM). LÄS MER
13. Theoretical Study on Chemical Structures and Stability of Molecules in Metallic Junctions
Sammanfattning : In this thesis, we focus on the structural identification of the interface using surface enhanced Raman spectroscopy (SERS) and inelastic electron tunnelling scattering (IETS). Two different molecular junctions, namely gold/ trans-1,2-bis (4-pyridyl) ethylene/gold junction and gold/4,4'-bipyridine/gold junctions in various conditions were studied and the corresponding configurations were determined. LÄS MER
14. Synthesis and Evaluation of Photoactive Pyridine Complexes for Electron Transfer Studies and Photoelectrochemical Applications
Sammanfattning : In this thesis, the preparation of new photoactive substances containing mono- and bipyridines coordinated to ruthenium is presented together with initial evaluations of their photoelectrochemical and photophysical properties. Complexes of the type Ru(bpy)2(4-X-py)2 (X = SH, COOH) were prepared and used in Grätzel-type solar cells based on ZnO. LÄS MER
15. Relationship Between Crystal Structure and Mechanical Properties in Cocrystals and Salts of Paracetamol
Sammanfattning : Oral tablets are convenient and widely administered drugdosage forms.The mechanical properties of a drug substance such as plasticity, ability to cohere into compacts and friction/adhesion are important in the development of a tablet formulation. LÄS MER