scholarly journals Resonant Tender X-ray Diffraction for Disclosing the Molecular Packing of Paracrystalline Conjugated Polymer Films

2021 ◽  
Author(s):  
Guillaume Freychet ◽  
Eliot Gann ◽  
Lars Thomsen ◽  
Xuechen Jiao ◽  
Christopher R. McNeill
Keyword(s):  
Polymer Films ◽  
Conjugated Polymer ◽  
Molecular Packing ◽  
X Ray Diffraction ◽  
X Ray

Three-Dimensional Molecular Packing of Thin Organic Films of PTCDI-C8Determined by Surface X-ray Diffraction

Langmuir ◽  
2008 ◽  
Vol 24 (22) ◽  
pp. 12742-12744 ◽  
Author(s):  
Tobias N. Krauss ◽  
Esther Barrena ◽  
Xue N. Zhang ◽  
Dimas G. de Oteyza ◽  
János Major ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Molecular Packing ◽  
Organic Films ◽  
X Ray Diffraction ◽  
X Ray ◽  
Thin Organic Films

Unambiguous determination of molecular packing in crystalline donor domains of small molecule solution processed solar cell devices using routine X-ray diffraction techniques

2014 ◽  
Vol 2 (10) ◽  
pp. 3536 ◽  
Author(s):  
Aurélien Viterisi ◽  
Núria F. Montcada ◽  
Challuri Vijay Kumar ◽  
Francesc Gispert-Guirado ◽  
Eddy Martin ◽  
...  
Keyword(s):  
Solar Cell ◽  
Small Molecule ◽  
Molecular Packing ◽  
X Ray Diffraction ◽  
Solution Processed ◽  
X Ray ◽  
Unambiguous Determination

Structure Analysis of a Rodlike Macromolecule: Poly(2,2'-(p,p'-Biphenyl)−6,6'-bis(4-Phenylquinoline))

1988 ◽  
Vol 134 ◽  
Author(s):  
Craig W. Burkhart ◽  
Jerome B. Lando ◽  
John K. Stille
Keyword(s):  
Crystal Structure ◽  
Structure Analysis ◽  
Molecular Packing ◽  
Unit Cell ◽  
X Ray Diffraction ◽  
X Ray ◽  
Fiber Diffraction ◽  
Herringbone Structure ◽  
Packing Analysis

ABSTRACTUniaxially oriented, crystalline fibers of poly(2,2'-(p,p'-biphenyl)- 6,6'-bis(4-phenylquinoline)) [PBPQ], were subjected to structure analysis via x-ray diffraction and molecular packing analysis. Packing analysis was required due to the sparse and diffuse nature of the fiber diffraction photographs. The combination of the two techniques allowed us to resolve the crystal structure. PBPQ packs in a syn conformation, in a modified herringbone structure. It has a unit cell of a = 16.2Å, b = 5.31Å, c = 21.4Å. There are two independent chains in the unit cell. An overview of the refinement of the crystal structure, the packing analysis and the crystallography are presented.

Adamantane derivatives of sulfonamide molecular crystals: structure, sublimation thermodynamic characteristics, molecular packing, and hydrogen bond networks

CrystEngComm ◽  
2015 ◽  
Vol 17 (4) ◽  
pp. 753-763 ◽  
Author(s):  
German L. Perlovich ◽  
Alex M. Ryzhakov ◽  
Valery V. Tkachev ◽  
Alexey N. Proshin
Keyword(s):  
Hydrogen Bond ◽  
Crystal Structures ◽  
Molecular Crystals ◽  
Thermodynamic Characteristics ◽  
Molecular Packing ◽  
Adamantane Derivatives ◽  
X Ray Diffraction ◽  
X Ray ◽  
Hydrogen Bond Networks ◽  
Derivatives Of

The crystal structures of six adamantane derivatives of sulfonamides have been determined by X-ray diffraction and their sublimation and fusion processes have been studied.

Molecular packing in new Langmuir-Blodgett systems investigated by X-ray specular reflectivity and grazing incidence X-ray diffraction

1996 ◽  
Vol 288 (1-2) ◽  
pp. 272-278 ◽  
Author(s):  
C. Giannini ◽  
L. Tapfer ◽  
M. Sauvage-Simkin ◽  
Y. Garreau ◽  
N. Jedrecy ◽  
...  
Keyword(s):  
Grazing Incidence ◽  
Molecular Packing ◽  
X Ray Diffraction ◽  
X Ray ◽  
Langmuir Blodgett ◽  
Specular Reflectivity

scholarly journals Exploring the Interfacial Phase and π–π Stacking in Aligned Carbon Nanotube/Polyimide Nanocomposites

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1158
Author(s):  
Qian Jiang ◽  
Qian Zhang ◽  
Xianyan Wu ◽  
Liwei Wu ◽  
Jia-Horng Lin
Keyword(s):  
Carbon Nanotube ◽  
Conjugated Polymer ◽  
Emission Spectroscopy ◽  
Fluorescence Emission ◽  
Interfacial Microstructure ◽  
Phase System ◽  
X Ray Diffraction ◽  
X Ray ◽  
Π Stacking ◽  
Fluorescence Emission Spectroscopy

To characterize the interfacial microstructure and interaction at a nanoscale has a significant meaning for the interface improvement of the nanocomposites. In this study, the interfacial microstructure and features of aligned multiwalled carbon nanotube (MWNT) and conjugated polymer polyimide (PI) with three molecular structures were investigated using small-angle X-ray scattering (SAXS), wide-angle X-ray diffraction (WAXD), and fluorescence emission spectroscopy. It was found that aligned MWNT/PI nanocomposites had a nonideal two-phase system with the interfaces belonging to long period stacking ordered structure. Attributed to the π–π stacking effect, MWNT/BTDA-MPD presented the most regular arrangement verified by fractal dimension. By adopting a one-dimension correlation function, each phase dimension in aligned MWNT/PI nanocomposites was calculated and verified by high resolution transmission electron microscopy (HRTEM) and X-ray diffraction (XRD). The π–π stacking was demonstrated to be an important interaction between MWNT and PI via WAXD and fluorescence emission spectroscopy, and it was influenced by the linkage bond between benzene rings in PIs. This work is of significance to reveal the interfacial features between conjugated polymer and carbon nanotubes (CNTs), which is favorable for the interface design of CNT-based high performance nanocomposites.

Molecular Packing in Thermotropic Smectic Phases by Neutron and X-Ray Diffraction

1987 ◽  
Vol 149 (1) ◽  
pp. 329-345 ◽  
Author(s):  
R. M. Richardson ◽  
A. J. Leadbetter ◽  
M. A. Mazid ◽  
P. A. Tuckera
Keyword(s):  
Molecular Packing ◽  
X Ray Diffraction ◽  
X Ray ◽  
Smectic Phases

Use of X-Ray Diffraction, Molecular Simulations, and Spectroscopy to Determine the Molecular Packing in a Polymer-Fullerene Bimolecular Crystal

2012 ◽  
Vol 24 (45) ◽  
pp. 6071-6079 ◽  
Author(s):  
Nichole Cates Miller ◽  
Eunkyung Cho ◽  
Matthias J. N. Junk ◽  
Roman Gysel ◽  
Chad Risko ◽  
...  
Keyword(s):  
Molecular Simulations ◽  
Molecular Packing ◽  
X Ray Diffraction ◽  
X Ray
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