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Multiscale phenomena in molecular matter

3–6 Jul 2017
Europe/Warsaw timezone

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Session

Structure Research

5 Jul 2017, 11:30

Conveners

Structure Research

  • Victoria Garcia Sakai (ISIS Neutron and Muon Facility, STFC)

Presentation materials

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  1. 61. Organic solid state: accounts of co-crystals and of plastic crystal mesophases
    M. Ermelinda Eusebio (Department of Chemistry, University of Coimbra)
    05/07/2017, 11:30
    Soft matter and glass formers
    oral presentation
    `The investigation of solid forms of organic compounds and its structural characterization is an area of active research. It is particularly relevant in what concerns active pharmaceutical ingredients [1, 2], but also in all other domains where differences in the solid-state form may impact the material properties [3, 4]. Polymorphs of the pure compound, solvates, salts, co-crystals and their...
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  2. 64. Multiscale structure in amorphous carbohydrate matrices in relation to phase behavior, molecular packing and interaction with water
    Prof. Job Ubbink (California Polytechnic State University)
    05/07/2017, 12:00
    Miscellany (biologically oriented systems, new ideas, advanced methods,...)
    oral presentation
    `Glassy matrices for the encapsulation and stabilization of bioactive compounds often consist of molecularly miscible blends of a carbohydrate of higher molecular weight and a low molecular weight carbohydrate or polyol. Typical examples of such blends are maltodextrin/sucrose and trehalose/glycerol. The optimization of the barrier properties of such matrices depends in a subtle way on the...
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  3. 2. Polymorphism and Isomerism in Coordination Compounds: The Nemesis of Crystal Design
    Prof. Christian Naether (Institute of Inorganic Chemistry University of Kiel)
    05/07/2017, 12:30
    Molecular magnets and nanomagnets
    oral presentation
    `Investigations on the development of strategies for a more rational synthesis of new materials with desired physical properties is still a major field in modern chemistry. This approach, called “crystal engineering”, includes systematic investigations on the structure property relationships of compounds as well as ideas how a given structure can specifically be prepared. In this context,...
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  4. 57. Positron annihilation in smectic E phase of 4 - alkyl - 4 – isothiocyanatobiphenyl (6TCB)
    Dr Ewa Dryzek (Institute of Nuclear Physics PAN)
    05/07/2017, 13:00
    Soft matter and glass formers
    oral presentation
    `Positron annihilation lifetime spectroscopy (PALS) has been employed for characterization of the local structure in molecular substances such as polymers or liquid crystals. When a positron enters an insulator solid it can form a bound state with an electron called positronium (Ps). Ps is located in low electron density regions like local free volume holes. Ps can be formed in two spin...
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  5. 35. Physical properties and phase transitions of 3FmHPhF
    Aleksandra Deptuch (Marian Smoluchowski Institute of Physics, Jagiellonian University, Cracow, Poland)
    05/07/2017, 13:20
    Soft matter and glass formers
    oral presentation
    `Liquid crystalline compounds belonging to 3FmHPhF homologous series (m = 2, 4, 5, 6, 7) have been studied by complementary methods such as differential scanning calorimetry (DSC), polarizing optical microscopy (POM), electrooptic methods, frequency domain dielectric spectroscopy (FDDS) and X-ray diffraction (XRD). All studied compounds exhibit ferroelectric smectic C$^\ast$ and...
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