Sökning: "dichloromethane"

Visar resultat 6 - 10 av 16 avhandlingar innehållade ordet dichloromethane.

1. 6. Femtosecond Dynamics and Photochemistry in Solution

   Författare :Marcus Rasmusson; Kemisk fysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Kemi; Chemistry; cross-correlation function; chloroiodomethane; dihalides; bromobenzene; ion pairs; solvation; vibrational relaxation; charge-transfer; tetranitromethane; electron transfer; femtosecond spectroscopy; dissociation; Photochemistry; Fotokemi; Chemical technology and engineering; Kemiteknik och kemisk teknologi;

   Sammanfattning : The reaction dynamics of several polyatomic systems have been investigated in solution by femtosecond spectroscopy. Tetranitromethane-naphtalene complexes excited in the charge-transfer band at 400 nm undergo dissociative electron transfer, resulting in three primary products: [naphthalene].+, NO2 and C(NO2)3-. LÄS MER

3. 7. NMR Studies of Inclusion Compounds

   Författare :Sahar Nikkhou Aski; Jozef Kowalewski; Pierre Mutzenhardt; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NMR; 13C spin relaxation; PFGNMR; Kinetics; Correlation time; Physical chemistry; Fysikalisk kemi; Physical Chemistry; fysikalisk kemi;

   Sammanfattning : This thesis presents the application of some of the NMR methods in studying host-guest complexes, mainly in solution. The general focus of the work is on investigating the reorientational dynamics of some small molecules that are bound inside cavities of larger moieties. LÄS MER

4. 8. Fast Dynamic Processes in Solution Studied by NMR Spectroscopy

   Författare :Mária Šoltésová; Jozef Kowalewski; Jan Lang; Gyula Batta; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nuclear magnetic resonance; Dynamics; Ethanol; Cryptophanes; Saccharides; Nukleární magnetická rezonance; dynamika; ethanol; kryptofan; sacharidy; fysikalisk kemi; Physical Chemistry;

   Sammanfattning : Nuclear magnetic resonance (NMR) spectroscopy is capable to deliver a detailed information about the dynamics on molecular level in a wide range of time scales, especially if accompanied by suitably chosen theoretical tools. In this work, we employed a set of high-resolution NMR techniques to investigate dynamics processes in several weakly interacting molecular systems in solution. LÄS MER

5. 9. New Applications of Monoorganocopper/Iodotrimethylsilane Reagents in Conjugate Additions

   Författare :Magnus Eriksson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; beta-unsaturated; halosilane; conjugate addition; alpha; copper iodide; copper acetylides; organocopper; iodotrimethylsilane; Claisen rearrangement;

   Sammanfattning : The thesis reports new applications of monoorganocopper compounds, RCu(LiI), and iodotrimethylsilane in conjugate additions. The present investigation demonstrates conjugate addition of alkylcopper compounds and iodotrimethylsilane to reactive .alpha.,. LÄS MER

7. 10. Polyporoid fungi of Tanzania : Taxonomy, transcriptomics and biochemical analyses of Kusaghiporia usambarensis and Piptoporellus baudonii

   Författare :Juma Mahmud Hussein; Sanja Tibell Savić; Donatha Tibuhwa; Christina Wedén; Ulf Göransson; Jan Stenlid; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Systematics; Laetiporaceae; pharmacognosy; cysteine-rich peptide; baudonii; Biology with specialization in Systematics; Biologi med inriktning mot systematik;

   Sammanfattning : Polyporoid fungi refers to basidiomycetes with fruiting bodies with the hymenium located to the inner surfaces of pores or narrow tubes. The majority of polyporoids belongs to Polyporales. Most Polyporales are saprobes, but some are plant pathogens. LÄS MER