Polyhedral Organic Microcrystals: From Cubes to Rhombic Dodecahedra

Zhang, Xiujuan; Dong, C.; Zapien, Juan Antonio; Ismathullakhan, Shafiq; Kang, Zhenhui; Jie, Jiansheng; Zhang, Xiaohong; Chang, Jie; Lee, Chun‐Sing; Lee, Shuit‐Tong

doi:10.1002/anie.200902929

Cited by 103 publications

(73 citation statements)

References 29 publications

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“…They are potent materials for chemical and biological sensing, 1-3 photocatalysis, 4 optics, [5][6][7] optoelectronics, 8,9 etc. They are potent materials for chemical and biological sensing, 1-3 photocatalysis, 4 optics, [5][6][7] optoelectronics, 8,9 etc.…”

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confidence: 99%

Incorporation of Coumarin 6 in cyclodextrins: microcrystals to lamellar composites

et al. 2015

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Coumarin 6 precipitates in water as microcrystals resulting in a considerable loss in fluorescence yield. Differential interaction of the microcrystals with cyclodextrins of different cavity size enhances the fluorescence yield of the dye by 160 fold in some cases. Highly fluorescent ultrathin lamellar entities form through hydrogen bonding. † Electronic supplementary information (ESI) available: Structure of C6, AFM and SEM images of C6 aer incubation in water (with 1% methanol) for 30 minutes at room temperature, uorescence spectra of C6 in a-, band g-CDs in aqueous environment and time resolved uorescence decay prole for C6 in presence of band g-CDs. See

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confidence: 99%

Incorporation of Coumarin 6 in cyclodextrins: microcrystals to lamellar composites

et al. 2015

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“…Much progress has been made in enumerating and characterizing the packing of polyhedral shapes and the self-assembly of polyhedral nanocrystals into ordered superstructures [16]. New synthetic methods give access to a wide range of well-defined polyhedral nanocrystalline shapes and faceted nano-particles including cubes, truncated cubes, cuboctahedra, truncated octahedra and octahedra over a range of sizes from 100 to 300 nm [8,[17][18][19][20][21][22][23][24][25]. A few such polyhedral nanoparticles can be seen in fig.…”

Section: Convex Polyhedramentioning

confidence: 99%

Glassy dynamics of convex polyhedra

Tasios

Gantapara

Dijkstra

2014

The Journal of Chemical Physics

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Dedicated to my little sister.i Acknowledgments I would like to thank Marjolein Dijkstra and Anjan Gantapara for their patience and continuous help in the realization of this Thesis. I would also like to thank Djamel el Masri for sharing his knowledge of calculating the SISF.ii Abstract Self-assembly of polyhedral-shaped particles have attracted huge interest with the advent of new synthesis methods to realize these faceted particles in the lab. Recent studies have shown that polyhedral particles exhibit rich phase behavior by excluded volume interactions alone. Some of these particles are alleged to show a transition to a glass phase by quenching the liquid sufficiently fast beyond the glass transition (supercooling) such that the formation of structures with long-range order is suppressed. Despite the recent progress, no study has been made on the glass formation of polyhedral-shaped particles. Here we study the glassy behavior of polyhedral particles using advanced Monte Carlo methods. In the first part of this thesis the formation of glass by mono-disperse polyhedral particles, namely octahedra, tetrahedra and triangular cupola are discussed. At the end, the fragility of these particles is calculated and compared with that of other systems.In the second part of this thesis we performed preliminary calculations on binary mixtures of polyhedral particles. Possible candidate crystal structures are studied using the floppy box Monte Carlo method.iii

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“…Several studies on surfactant-assisted synthesis of organic crystals, including one of our recent studies, attributed 3D shape selection to the facet-specific adhesion of surfactant molecules and anisotropic passivation effect. [11e, [18][19][20][21] However, the inherent dynamic nature of surfactant molecules hinders a clear rationalization of 3D shape evolution and the corresponding assembly mechanisms. [22] In this study, we systematically investigated the mechanism of anisotropic growth of foldectures and molecular-level interactions between β-peptides and surfactants using experimental and computational approaches.…”

Section: Introductionmentioning

confidence: 99%

Self‐Assembly of a β‐Peptide Foldamer: The Role of the Surfactant in Three‐Dimensional Shape Selection

et al. 2019

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The effect of a small ionic surfactant, cetyltrimethylammonium bromide (CTAB), on the self‐assembly of a β‐peptide has been systematically studied by using scanning electron microscopy, X‐ray diffraction, selected area electron diffraction, and molecular dynamics (MD) simulations. The latter study suggested that the formation of asymmetric microcrystals may be due to the preferential adsorption of CTAB on {011} and (001) crystal faces. This work provides a plausible rationale for the characteristic 3D morphogenesis of foldectures and elucidates the interaction between the surfactant and organic building block molecules.

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Polyhedral Organic Microcrystals: From Cubes to Rhombic Dodecahedra

Cited by 103 publications

References 29 publications

Incorporation of Coumarin 6 in cyclodextrins: microcrystals to lamellar composites

Incorporation of Coumarin 6 in cyclodextrins: microcrystals to lamellar composites

Glassy dynamics of convex polyhedra

Self‐Assembly of a β‐Peptide Foldamer: The Role of the Surfactant in Three‐Dimensional Shape Selection

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