Sökning: "Acid-Base Chemistry"

Visar resultat 1 - 5 av 36 avhandlingar innehållade orden Acid-Base Chemistry.

1. 1. Acid-base and complexation properties of hydrous flourapatite surfaces

   Författare :Liu-Ming Wu; Luleå tekniska universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry of Interfaces; Gränsytors kemi;

   Sammanfattning : .... LÄS MER

3. 2. Dynamic Chemistry for Asymmetric Synthesis, Molecular Motion and Constitutional Exchange

   Författare :Yansong REN; Licheng Sun; Olof Ramström; Anna Hirsch; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; dynamic chemistry; constitutional dynamic chemistry; motional dynamics; dynamic kinetic resolution; enzyme; subtilisin Carlsberg; Candida antarctica lipase B; anti-HIV; 1; 3-oxathiolane; dynamic exchange; enamines; E Z-isomerization; molecular switches; aggregation; gelation; fluorescence.; dynamisk kemi; konstitutionell dynamisk kemi; molekylär rörelsedynamik; dynamisk kinetisk resolvering; enzym; subtilisin Carlsberg; Candida antarctica lipase B; anti-HIV; 1; 3-oxatiolan; dynamisk utbyte; enaminer; E Z-isomerisering; molekylära omkopplare; aggregering; gelbildning; fluorescens.; Kemi; Chemistry;

   Sammanfattning : Living matter is built on complex dynamic systems consisting of numerus biotransformations. By exploiting the adaptive and evolutive behaviors ofmolecular matter, dynamic chemistry has developed as an important tool tounderstand the organization of nonliving matter into complex living systems. LÄS MER

4. 3. Chemical Processes at the Water-Manganite (γ-MnOOH) Interface

   Författare :Madeleine Ramstedt; Staffan Sjöberg; Per Persson; Lars Lövgren; Steven A. Banwart; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Inorganic chemistry; manganite; γ-MnOOH; mineral surface; acid-base properties; adsorption; Cd II ; N- phosphonomethyl glycine; glyphosate; PMG; surface complex; dissolution; disproportionation; XPS; EXAFS; infrared spectroscopy; SEM; AFM; potentiometry; electrophoresis; Oorganisk kemi; Inorganic chemistry; Oorganisk kemi; oorganisk kemi; Inorganic Chemistry;

   Sammanfattning : The chemistry of mineral surfaces is of great importance in many different areas including natural processes occurring in oceans, rivers, lakes and soils. Manganese (hydr)oxides are one important group to these natural processes, and the thermodynamically most stable trivalent manganese (hydr)oxide, manganit (γ-MnOOH), is studied in this thesis. LÄS MER

5. 4. Direct Catalytic Nucleophilic Substitution of Non-Derivatized Alcohols

   Författare :Anon Bunrit; Joseph Samec; Joseph Moran; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nucleophilic substitution; catalysis; alcohols; stereospecific; Lewis acid; Brønsted acid base; bifunctional; heterocycles; organisk kemi; Organic Chemistry;

   Sammanfattning : This thesis focuses on the development of methods for the activation of the hydroxyl group in non-derivatized alcohols in substitution reactions. The thesis is divided into two parts, describing three different catalytic systems. LÄS MER

7. 5. Terminating species and Lewis acid-base preference in oxohalides – a new route to low-dimensional compounds

   Författare :Richard Becker; Mats Johnsson; Jean Galy; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Low dimensionality; crystal structures; tellurites; selenites; oxohalides; Inorganic chemistry; Oorganisk kemi;

   Sammanfattning : This thesis is based upon synthesis and structure determination of new transition metal oxo-halide compounds, which includes p-element cations that have a stereochemically active lone pair. A synthesis concept has been developed, which uses several different structural features to increase the possibility to yield a low-dimensional arrangement of transition metal cations. LÄS MER