Zobrazeno 1 - 10
of 43
pro vyhledávání: '"crystallization and crystal"'
Autor:
Laurens Bourda, Subhrajyoti Bhandary, Sho Ito, Christian R. Göb, Pascal Van Der Voort, Kristof Van Hecke
Publikováno v:
IUCrJ, Vol 11, Iss 4, Pp 510-518 (2024)
Although COF-300 is often used as an example to study the synthesis and structure of (3D) covalent organic frameworks (COFs), knowledge of the underlying synthetic processes is still fragmented. Here, an optimized synthetic procedure based on a combi
Externí odkaz:
https://doaj.org/article/bf1ba850e546468a82883d5c48b3540c
Publikováno v:
IUCrJ, Vol 11, Iss 4, Pp 519-527 (2024)
A new polymorph of 1,3-diacetylpyrene has been obtained from its melt and thoroughly characterized using single-crystal X-ray diffraction, steady-state UV–Vis spectroscopy and periodic density functional theory calculations. Experimental studies co
Externí odkaz:
https://doaj.org/article/60fc7c46656e4248a87892ab2c269109
Publikováno v:
IUCrJ, Vol 10, Iss 6, Pp 671-677 (2023)
Five coordination polymers [TM1(absa)(H2O)4]n and [TM2(absa)(bipy)(H2O)]n [TM1 = Zn (1), Co (2); TM2 = Zn (3), Co (4), Cu (5); Na2absa = 5,5′-azobissalicylic acid disodium salt; bipy = 4,4′-bipyride] were synthesized by solvent evaporation under
Externí odkaz:
https://doaj.org/article/04edddcf136d450badc4f6b26364b60c
Autor:
David R. Allan
Publikováno v:
IUCrJ, Vol 11, Iss 4, Pp 438-439 (2024)
From its conception, X-ray crystallography has provided a unique understanding of the structure, bonding and electronic state of materials, which, in turn, unlocks a means of examining the properties and function of crystalline systems. Using state-o
Externí odkaz:
https://doaj.org/article/753aef8304a6454a97f1b69c6ba8b839
Publikováno v:
IUCrJ, Vol 7, Iss 3, Pp 422-433 (2020)
Herein the nucleation pathway of conformational polymorphs was revealed by studying the relationships and distinctions among a series of α,ω-alkanedicarboxylic acids [HOOC–(CH2)n−2–COOH, named DAn, where n = 5, 7, 9, 11, 13, 15] in the solid
Externí odkaz:
https://doaj.org/article/87ba4582d10749d4a69ff82d3de86312
Akademický článek
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Akademický článek
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Publikováno v:
Crystals, Vol 12, Iss 12, p 1780 (2022)
Gypsum (calcium sulfate dihydrate) is one of the most used inorganic binding materials in the world. During calcination, calcium sulfate subhydrates are formed and, for technical reasons, are mixed with water to form dihydrate again. Therefore, the d
Externí odkaz:
https://doaj.org/article/475fad3742db4050b4397da45524d017
Publikováno v:
IUCrJ, Vol 5, Iss 2, Pp 182-189 (2018)
The existence of isomerism in coordination polymeric structures offers opportunities to understand structure–function relationships. Herein the serendipitous isolation is reported of two isomeric double-pillared-layer coordination polymeric structu
Externí odkaz:
https://doaj.org/article/fcba0b1c24c342db8a4fd0bab21e2149
Publikováno v:
Crystals, Vol 10, Iss 12, p 1137 (2020)
Novel multi-component composites composed of the biodegradable polymer poly(ethylene adipate) (PEA), the water-soluble polymer poly(ethylene oxide) (PEO), poly(vinyl acetate) (PVAc), and a supramolecular-like inclusion complex (IC) made by α-cyclode
Externí odkaz:
https://doaj.org/article/0961bcb1d9dc4cf7b0954fde8d1d901a