Temperature-Controlled Assembly and Characterization of a Droplet Interface Bilayer

10.3791/62362 ◽  
2021 ◽  
Author(s):  
Jessie D. Ringley ◽  
Stephen Andrew Sarles
Keyword(s):  
Controlled Assembly ◽  
Droplet Interface Bilayer ◽  
Temperature Controlled

scholarly journals Stacking Control by Molecular Symmetry of Sterically Protected Phthalocyanines

Molecules ◽  
2020 ◽  
Vol 25 (23) ◽  
pp. 5552
Author(s):  
Ryota Kudo ◽  
Masahiro Sonobe ◽  
Yoshiaki Chino ◽  
Yu Kitazawa ◽  
Mutsumi Kimura
Keyword(s):  
Lamellar Structure ◽  
Synthesis And Characterization ◽  
Molecular Symmetry ◽  
X Ray Diffraction ◽  
Melting Points ◽  
Scanning Calorimetry ◽  
Structural Isomers ◽  
X Ray ◽  
Temperature Controlled

The synthesis and characterization of two phthalocyanine (Pc) structural isomers, 1 and 2, in which four 2,6-di(hexyloxy)phenyl units were attached directly to the 1,8,15,22- or 1,4,15,18-positions of the Pc rings, are described. Both Pcs 1 and 2 exhibited low melting points, i.e., 120 and 130 °C respectively, due to the reduction in intermolecular π-π interaction among the Pc rings caused by the steric hindrance of 2,6-dihexyloxybenzene units. The thermal behaviors were investigated with temperature-controlled polarizing optical microscopy, differential scanning calorimetry, powder X-ray diffraction, and absorption spectral analyses. Pc 1, having C4h molecular symmetry, organized into a lamellar structure containing lateral assemblies of Pc rings. In contrast, the other Pc 2 revealed the formation of metastable crystalline phases, including disordered stacks of Pcs due to rapid cooling from a melted liquid.

The characterization of clay-organic systems

Clay Minerals ◽  
1982 ◽  
Vol 18 (4) ◽  
pp. 357-371 ◽  
Author(s):  
D. T. B. Tennakoon ◽  
R. Schlögl ◽  
T. Rayment ◽  
J. Klinowski ◽  
W. Jones ◽  
...  
Keyword(s):  
High Pressure ◽  
Nmr Spectroscopy ◽  
Catalytic Properties ◽  
Clear Distinction ◽  
Organic Systems ◽  
Catalytically Active ◽  
Natural Clays ◽  
Temperature Controlled ◽  
C Nmr

AbstractThe importance of a number of techniques (including1H and13C NMR, XRD and IR) in exploring the important catalytic properties of synthetic and natural clays is described. A clear distinction is observed between proven catalytically-active clays (e.g. Al-exchanged) and those which are generally less effective (e.g. Na-exchanged).13C NMR spectroscopy is used to identify directly products formed within the interlayer regions, and temperature-controlled powder XRD serves as a useful tool for identifying whether or not intercalation occurs under variously defined conditions. High-pressure XRD is used to verify the formation of different products during reaction.

Temperature-Controlled Assembly of High Ordered/Disordered Dodecylamine Layers on HOPG: Consequences for DNA Patterning

Langmuir ◽  
2009 ◽  
Vol 25 (5) ◽  
pp. 3159-3162 ◽  
Author(s):  
Jozef Adamcik ◽  
Susana Tobenas ◽  
Giovanni Di Santo ◽  
Dmitry Klinov ◽  
Giovanni Dietler
Keyword(s):  
Controlled Assembly ◽  
Temperature Controlled

Structural Characterization of Fullerene thin Films Fabricated by Organic Molecular Beam Deposition

1994 ◽  
Vol 359 ◽  
Author(s):  
Kiyoshi Yase ◽  
Takuya Saraya ◽  
Kazuhiro Kudo
Keyword(s):  
Molecular Beam ◽  
Substrate Surface ◽  
Alkali Halides ◽  
Thin Solid Films ◽  
Solid Films ◽  
Molecular Beam Deposition ◽  
Temperature Controlled ◽  
Beam Deposition ◽  
Deposition Conditions

ABSTRACTFullerene C60 thin solid films have been fabricated on the (001) surfaces of alkali halides (NaCl, KCI and KBr) and muscovite by organic molecular beam deposition (OMBD) technique. Pure C60 powder was sublimated from the precisely temperature-controlled K-cell at low pressure (10−7 Torr) and deposited onto the substrates kept in the range 125 –300 °C. Increasing both the temperature of K-cell and the substrate temperature, fine crystals grow with different size, shape and distance between neighbors. The dependence of the size and density of island crystals on the deposition conditions revealed the mechanism of crystal growth and the effect of interaction between molecules and substrate surface.

Sign in / Sign up

Export Citation Format

Share Document