Search for dissertations about: "halogen"

Showing result 1 - 5 of 53 swedish dissertations containing the word halogen.

  1. 1. Characterising Halogen Bonding in a Cooperative Model System

    Author : Stefan Peintner; Mate Erdelyi; Anja Sandström; Uppsala universitet; []
    Keywords : Halogen Bond; NMR; peptide; conformation; RDC; Chemistry with specialization in Organic Chemistry; Kemi med inriktning mot organisk kemi;

    Abstract : Non-covalent interactions are the main driving factor for secondary structure formation of biomacromolecules and are of enormous importance for the direction of molecular recognition events, for example those of importance for drug discovery. Profound understanding of these interactions is of vital importance to achieve high affinity and selectivity of a ligand to a chosen target. READ MORE

  2. 2. Molecular beam study of non-adiabatic electron transfer in the Cl2+Ksurf surface reaction

    Author : Lars Hellberg; Chalmers University of Technology; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; harpooning; electron transfer; Cl2; surface; exo-electrons; sticking; halogen; non-adiabatic; chemiluminescence;

    Abstract : Halogen molecules impinging on alkali metal surfaces constitute model systems for studies of charge transfer, dissociation dynamics and non-adiabatic energy dissipation in molecule-surface reactions. This thesis reports emission of exo-electrons and photons from the surface as a result of strong non-adabaticity in the Cl2 gas on K$^{solid}$ reaction. READ MORE

  3. 3. Spirocyclic diacyloxyselenuranes and 2-halogen substituted selenides : a synthetic and a mechanistic approach

    Author : Björn Lindgren; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  4. 4. Low smoke halogen-free materials for wire and cable applications

    Author : Anna Hermansson; Chalmers University of Technology; []
    Keywords : effervescence; calcium carbonate; calcium silicate; intumescent structure; silicone elastomer; thermal degradation; flame retardant; Casico; polyolefin;

    Abstract : Fire safety issues are becoming increasingly important in modern society and cables are one potential fire risk since they can start a fire and/or spread one. Traditionally, materials containing halogen have been used as primary insulation in low voltage power and telecommunication cables and most cables used today therefore contain halogen. READ MORE

  5. 5. Reactivity of late transition metal complexes towards CO2 and other electrophiles

    Author : Magnus Johnson; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; CO2; carbon dioxide; electrophiles; late transition metal complexes; catalysis; halogen bonding; XB; cyclometallation; pincer; organometallic synthesis;

    Abstract : In times when dwindling energy resources is a major long-term problem for sustaining modern infrastructure and technologies, we need to focus on more enduring solutions. A key contribution to this achievement is catalysis. READ MORE