Sökning: "strukturkemi"

Visar resultat 1 - 5 av 129 avhandlingar innehållade ordet strukturkemi.

  1. 1. Molecular recognition in the solid state : crystal structure studies of selected inclusion compounds of host molecules with roof-shaped skeleton

    Detta är en avhandling från Stockholm : Department of Structural Chemistry, Stockholm University

    Författare :Olga Helmle; Stockholms universitet.; [1998]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi; Structural Chemistry; strukturkemi;

    Sammanfattning : This survey presents the results of single-crystal X-ray diffraction investigations of nine selected organic heteromolecular complexes in terms of the molecular recognition concept. The host molecules of the studied inclusion compounds have the 9,10-dihydro-9,10-ethanoanthracene moiety in common, to which various sensor groups possessing both proton donor and acceptor abilities are attached. LÄS MER

  2. 2. Structural modeling of membrane transporter proteins

    Detta är en avhandling från Stockholm : Institutionen för fysikalisk kemi, oorganisk kemi och strukturkemi

    Författare :Jonas Almqvist; Stockholms universitet.; [2008]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; membrane protein structure; membrane protein crystallography; membrane protein structure modelling; TECHNOLOGY Bioengineering Structural biochemistry; TEKNIKVETENSKAP Bioteknik Strukturbiokemi; strukturkemi; Structural Chemistry;

    Sammanfattning : A fundamental process of all living organisms - the transport of molecules across cellular membranes through membrane transport proteins - is investigated.After a brief review of general properties of biological membranes follows a recollection of the major methods of membrane transport that Nature utilizes (Chapter 1). LÄS MER

  3. 3. Synthesis and characterisation of Zintl hydrides

    Detta är en avhandling från Stockholm : Institutionen för fysikalisk kemi, oorganisk kemi och strukturkemi

    Författare :Thomas Björling; Stockholms universitet.; [2008]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Zintl hydrides; BaGa2H2; SrAl2H2; SrAlSiH; BaAlSiH; CaAlSiH; SrGa2H2; MEDICINE Chemistry; MEDICIN Kemi; Structural Chemistry; strukturkemi;

    Sammanfattning : The synthesis, structural characterisation and the properties of the Zintl hydrides AeE2H2 and AeAlSiH (Ae = Ba, Ca, Sr; E = Al, Ga, In, Si, Zn) are reported. The first hydride in this class of compounds is SrAl2H2 which was discovered under an experiment by Gingl, who hydrogenated SrAl2 at various temperatures. LÄS MER

  4. 4. Non-Standard Crystallography Examples in 3- and 3+1 Dimensional Space

    Detta är en avhandling från Stockholm : Institutionen för fysikalisk kemi, oorganisk kemi och strukturkemi

    Författare :Jeppe Christensen; Stockholms universitet.; [2007]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Modulation; Crystallography; intermetallic; materials; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi; strukturkemi; Structural Chemistry;

    Sammanfattning : Crystallography today is by many seen as merely a tool for determining the structure of a material on the atomic level. It is expected that whatever comes out of the tool is the indisputable truth, a fact. This thesis is based on five publications illustrating that this is very far from the real world of materials research. LÄS MER

  5. 5. Open-Framework Germanates Crystallography, structures and cluster building units

    Detta är en avhandling från Stockholm : Institutionen för fysikalisk kemi, oorganisk kemi och strukturkemi

    Författare :Kirsten Elvira Christensen; Stockholms universitet.; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; germanate; crystallography; building unit; zeotype; scale chemistry; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi; strukturkemi; Structural Chemistry;

    Sammanfattning : This thesis is focussing on the crystallographic challenges and what knowledge we can gain from studying the different open-framework germanates. Five new open-framework germanates have been synthesized and the structures have been determined by single crystal X-ray diffraction. LÄS MER