Sökning: "Optical activity"
Visar resultat 1 - 5 av 113 avhandlingar innehållade orden Optical activity.
1. Creating Optical Activity: Total Spontaneous Resolution and Viedma Ripening
Sammanfattning : The creation of optical activity has been considered as something impossible even though reports of such creation via total spontaneous resolution since the 1940´s have been published. More recently Viedma ripening have been developed that also produce enantiopure bulk product. Both methods are examples of absolute asymmetric synthesis i.e. LÄS MER
2. Optical Investigations of Chiral Liquid Crystals
Sammanfattning : Optical investigations of course involve experimental work, but a theoretical basis is also needed. The first chapter can hopefully can give the non-expert an insight into the science of liquid crystals. Liquid crystals are optically birefringent, and a review of the phenomenon of birefringence follows in chapter 2. LÄS MER
3. On the Optics and Surface Physics of Liquid Crystals
Sammanfattning : Good knowledge about optics and surface physics of liquid crystals is indispensable when utilising them for applications, such as liquid crystal displays (LCDs). However, they are also two central subjects in fundamental research on liquid crystals. LÄS MER
4. Organocopper compounds and iodotrimethylsilane in stereoselective conjugate additions
Sammanfattning : .... LÄS MER
5. Homochiral crystals for selective synthesis
Sammanfattning : Six new coordination compounds were prepared from monodentate sulfide ligands and copper(I) halides and their crystal structures were determined by single-crystal X-ray diffraction. The aim was to prepare coordination polymers that crystallize as conglomerates in order to use them in total spontaneous resolution. LÄS MER