Results 271 to 280 of about 12,248,518 (326)

Single-Crystal-to-Single-Crystal Topochemical Polymerizations by Design

Accounts of Chemical Research, 2008
The polymerization of simple conjugated dienes has long been of interest: polydienes occur throughout Nature, and polyisoprene and its analogues form the basis of entire industries. In contrast, the polymers of similar small conjugated compounds, diacetylenes, trienes, and triacetylenes, are either unknown or laboratory curiosities.
Joseph W, Lauher, Frank W, Fowler, Nancy S, Goroff   +2 more
openaire   +2 more sources

Fast growth of single-crystal covalent organic frameworks for laboratory x-ray diffraction

Science
The imine-exchange strategy makes single-crystal growth of covalent organic frameworks (COFs) with large size (>15 microns) possible but is a time-consuming process (15 to 80 days) that has had limited success (six examples) and restricts structural ...
Jing Han, Jie Feng, Jia Kang, Jie-Min Chen, Xin-Yu Du, Sanyuan Ding, Lin Liang, Wei Wang   +7 more
semanticscholar   +1 more source

Mechano-Photonics: Flexible Single-Crystal Organic Waveguides and Circuits.

Angewandte Chemie, 2020
Microfabrication of circuits by combining the mechanical and photonic properties of flexible crystals is imperative for flexible miniature photonic devices.
R. Chandrasekar, M. Annadhasan, Abhijeet R. Agrawal, Surojit Bhunia, Vuppu Vinay Pradeep, Sanjio S. Zade, C. M. Reddy   +6 more
semanticscholar   +1 more source

Single crystals of inulin

International Journal of Biological Macromolecules, 1996
Lamellar crystals of inulin were grown by crystallizing sharp fractions of low molecular weight inulin from dilute aqueous ethanol solutions. The crystals were analyzed using three-dimensional electron diffraction and X-ray powder diagrams. Two crystalline polymorphs were observed, depending on the hydration conditions: a hydrated form which indexed on
Andre, I., Putaux, J.L., Chanzy, H., Taravel, F.R., Timmermans, J.W., de Wit, D.   +5 more
openaire   +2 more sources

Bioengineering Single Crystal Growth

Journal of the American Chemical Society, 2011
Biomineralization is a "bottom-up" synthesis process that results in the formation of inorganic/organic nanocomposites with unrivaled control over structure, superior mechanical properties, adaptive response, and the capability of self-repair. While de novo design of such highly optimized materials may still be out of reach, engineering of the ...
Ching-Hsuan, Wu, Alexander, Park, Derk, Joester   +2 more
openaire   +2 more sources

Polymorphic single crystal ↔ single crystal transition in K0.975Rb0.025NO3

Crystallography Reports, 2010
Polymorphic transformations in K0.975Rb0.025NO3 single crystals have been investigated by optical microscopy and X-ray diffraction. The equilibrium temperature between modifications II and III has been determined. It is established that the crystal growth at II ↔ III polymorphic transitions is accompanied by the formation and growth of daughter ...
Yu. G. Asadov, E. V. Nasirov
openaire   +1 more source

Single-crystal AlN nanonecklaces

Nanotechnology, 2008
Distinct single-crystal aluminum nitride nanonecklaces with uniform [1011] faceted beads are synthesized via catalyst-assisted nitriding of Al. The detailed morphology and structure of the nanonecklaces have been characterized. The growth process has been investigated by comparing the products obtained at different synthesis times.
Huatao, Wang, Zhipeng, Xie, Yiguang, Wang, Weiyou, Yang, Qingfeng, Zeng, Feng, Xing, Linan, An   +6 more
openaire   +3 more sources

Shaped protein single crystals

Acta Crystallographica Section D Biological Crystallography, 1995
The formation of protein single crystals grown with the shape controlled by the geometry of the capillary used as a growth cell is presented. The shaped crystals show strong birefringence under crossed nicols and diffract as single crystals up to 1.74 A.
J M, García-Ruiz, A, Moreno, A, Parraga, M, Coll   +3 more
openaire   +2 more sources

Single Crystal GaN Nanowires

Journal of Nanoscience and Nanotechnology, 2001
Single crystal gallium nitride nanowires have been obtained by heating gallium acetylacetonate in the presence of carbon nanotubes or activated carbon in NH3 vapor at 910 degrees C. GaN nanowires also were obtained when the reaction of gallium acetylacetonate with NH3 was carried out over catalytic Fe/Ni particles dispersed over silica.
F L, Deepak, A, Govindaraj, C N, Rao
openaire   +2 more sources

Single Crystal Perovskite Solar Cells: Development and Perspectives

Advanced Functional Materials, 2019
The efficiency of perovskite solar cells has increased to a certified value of 25.2% in the past 10 years, benefiting from the superior properties of metal halide perovskite materials.
Xiao Cheng, Shuang Yang, Bingqiang Cao, X. Tao, Zhaolai Chen   +4 more
semanticscholar   +1 more source