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Journal articles on the topic 'Porosity. Crystal growth. Supramolecular chemistry'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Hyodo, Tadashi, Masahide Tominaga, and Kentaro Yamaguchi. "Guest-dependent single-crystal-to-single-crystal transformations in porous adamantane-bearing macrocycles." CrystEngComm 23, no. 7 (2021): 1539–43. http://dx.doi.org/10.1039/d0ce01782e.

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An adamantane-bearing macrocycle exhibited permanent intrinsic porosity and adsorption of small guests in single-crystal-to-single-crystal fashions. The guest capture resulted in the structural transformations of supramolecular organic frameworks.

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2

Chong, Samantha, Tom Hasell, Jamie Culshaw, et al. "Exploiting weak supramolecular interactions to assemble organic cage materials." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C632. http://dx.doi.org/10.1107/s205327331409367x.

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Intensive research into microporous materials has been driven by potential applications in areas such as catalysis, gas separation, storage, and sensing. Recently, a new class of purely organic molecular cage materials has emerged, which can exhibit significant porosity arising from the internal molecular cavity as well as extrinsic porosity from packing in the crystal structure [1]. Unlike extended frameworks, porous molecular materials lack strongly directional interactions to drive their assembly, complicating the crystal engineering possible for isoreticular metal-organic frameworks [2], f

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3

Foster, Jonathan A., Marc-Oliver M. Piepenbrock, Gareth O. Lloyd, Nigel Clarke, Judith A. K. Howard, and Jonathan W. Steed. "Anion-switchable supramolecular gels for controlling pharmaceutical crystal growth." Nature Chemistry 2, no. 12 (2010): 1037–43. http://dx.doi.org/10.1038/nchem.859.

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4

Epishin, Alexander, Thomas Link, Igor Leonidovich Svetlov, Gert Nolze, Romeo Saliwan Neumann, and Henning Lucas. "Mechanism of porosity growth during homogenisation in single crystal nickel-based superalloys." International Journal of Materials Research 104, no. 8 (2013): 776–82. http://dx.doi.org/10.3139/146.110924.

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5

Serdobintseva, V. V., D. V. Kalinin, A. F. Danilyuk, and N. A. Rudina. "Supramolecular crystal growth in concentrated suspensions of charged monodisperse spherical silica particles." Reaction Kinetics and Catalysis Letters 68, no. 2 (1999): 313–18. http://dx.doi.org/10.1007/bf02475518.

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6

Li, Hang, Fanchen Meng, Suoying Zhang, et al. "Crystal‐Growth‐Dominated Fabrication of Metal–Organic Frameworks with Orderly Distributed Hierarchical Porosity." Angewandte Chemie International Edition 59, no. 6 (2020): 2457–64. http://dx.doi.org/10.1002/anie.201912972.

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7

Shin, Jong Won, Ah Rim Jeong, Younghak Kim, et al. "Solvent-triggered single-crystal-to-single-crystal transformation from a monomeric to polymeric copper(II) complex based on an aza macrocyclic ligand." Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 76, no. 2 (2020): 225–32. http://dx.doi.org/10.1107/s2052520620002371.

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Reversible solvent-triggered single-crystal-to-single-crystal (SCSC) transformations are observed between two copper(II) azamacrocyclic complexes: [Cu(C16H38N6)(H2O)2](C12H6O4) (1) and [Cu(C16H38N6)(C12H6O4)] (2). Complex (1) was prepared via self-assembly of a copper(II) azamacrocyclic complex containing butyl pendant groups, [Cu(C16H38N6)(ClO4)2], with 2,7-naphthalenedicarboxylic acid. When monomeric compound (1) was immersed in CH3OH, coordination polymer (2) was obtained, indicating a solvent-triggered SCSC transformation. Furthermore, when (2) was immersed in water, an reverse SCSC transf

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Thomas, Jency, and Arunachalam Ramanan. "Growth of Copper Pyrazole Complex Templated Phosphomolybdates: Supramolecular Interactions Dictate Nucleation of a Crystal." Crystal Growth & Design 8, no. 9 (2008): 3390–400. http://dx.doi.org/10.1021/cg800344h.

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9

Lini, Freshsya Zata, Dhanang Edy Pratama, and Tu Lee. "Co-Crystallization Kinetics of 2:1 Benzoic Acid–Sodium Benzoate Co-Crystal: The Effect of Templating Molecules in a Solution." Crystals 11, no. 7 (2021): 812. http://dx.doi.org/10.3390/cryst11070812.

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The addition of dissolved templating molecules in crystallization will create “supramolecular assemblies” within the solution, serving as “anchor points” for the solute molecules to nucleate and grow. In this work, nucleation and crystal growth kinetics of 2:1 benzoic acid (HBz)–sodium benzoate (NaBz) co-crystallization with or without templates in a solution were analyzed by monitoring the concentration of the mother liquor during cooling crystallization. The results showed that the addition of the dissolved 2:1 or 1:1 HBz–NaBz co-crystals as templating molecules could reduce the critical fre

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10

LIU, Xi, Bo-Yuan CHEN, Zhi-Zhan CHEN, Li-Xin SONG, and Er-Wei SHI. "Effects of the Porosity of the Source Materials on the Initial Growth of 6H-SiC Crystal." Journal of Inorganic Materials 25, no. 2 (2010): 177–80. http://dx.doi.org/10.3724/sp.j.1077.2010.00177.

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11

Sathya, P., S. Pugazhendhi, and R. Gopalakrishnan. "Self-assembled supramolecular structure of 4-dimethylaminopyridinium p-hydroxy benzoate pentahydrate: synthesis, growth, optical and biological properties." RSC Advances 6, no. 50 (2016): 44588–98. http://dx.doi.org/10.1039/c6ra00283h.

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12

Rahman, Faiz-Ur, Amjad Ali, Inam Ullah Khan, et al. "Monofunctional supramolecular Pt(II) complexes: Synthesis, single crystal structure, anticancer activity, E. coli growth retardation and DNA interaction study." Inorganic Chemistry Communications 102 (April 2019): 95–103. http://dx.doi.org/10.1016/j.inoche.2019.02.011.

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13

Sumalan, Radu-Liviu, Lilia Croitor, Mihaela Petric, et al. "p-Aminobenzoate Organic Salts as Potential Plant Growth Regulators for Tomatoes." Molecules 25, no. 7 (2020): 1635. http://dx.doi.org/10.3390/molecules25071635.

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The discovery of environmentally friendly and inexpensive plant growth regulators (PGRs) for agronomically important crops is a necessity and must be considered a priority worldwide. This study provides the synthesis, structure determination and the biological evaluation of two binary organic salts as potential PGRs. New compounds have dual biological activity and are based on natural metabolite p-aminobenzoic acid (pABAH) and different alkanolamines. Studied compounds exhibit hydrogen-bonded 3D supramolecular architectures with different crystal packing due to the formation of one homosynthon

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14

Ozin, Geoffrey A. "1999 Pure or Applied Inorganic Chemistry Award Lecture Curves in chemistry: supramolecular materials taking shape." Canadian Journal of Chemistry 77, no. 12 (1999): 2001–14. http://dx.doi.org/10.1139/v99-201.

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A large part of the development of mathematics was driven by the desire to understand why objects in nature are found in a myriad of shapes and sizes and why certain forms are preferred over others. The area of mathematics called the calculus of variations has been utilized to handle the optimal forms in geometry and nature. It has been used to comprehend morphogenesis and the similarity, yet variety, of forms in the natural world. The mathematical underpinnings of natural form are beginning to influence the inorganic materials world, especially the unusual morphologies that arise in the field

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15

Yadav, Harsh, Nidhi Sinha, Sahil Goel, et al. "Growth, crystal structure, Hirshfeld surface, optical, piezoelectric, dielectric and mechanical properties of bis(L-asparaginium hydrogensquarate) single crystal." Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 73, no. 3 (2017): 347–59. http://dx.doi.org/10.1107/s2052520617002906.

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Molecular organic single crystals of bis(L-asparaginium hydrogensquarate) monohydrate [BASQ; (C8H10N2O7)2·H2O] have been grown by solution technique. Crystallographic information was investigated by single-crystal X-ray diffraction (SCXRD) analysis. Hirshfeld surface and fingerprint plot studies were performed to understand the intermolecular interactions of the BASQ crystal in graphical representation. Functional group identification was studied with FT–IR (Fourier transform–IR) spectroscopy. The positions of proton and carbon atoms in the BASQ compound were analyzed using NMR spectroscopy. H

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16

Nakamura, Daisuke, Keisuke Shigetoh, and Taishi Kimura. "Porosity-controlled multilayer TaC coatings prepared via wet powder process for multi-functional reactor components in GaN crystal growth system." Ceramics International 44, no. 17 (2018): 21284–88. http://dx.doi.org/10.1016/j.ceramint.2018.08.177.

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17

Faria, Bruno, Cátia Guarda, Nuno Silvestre та José N. C. Lopes. "Aluminum composites reinforced by γ-graphynes: The effect of nanofillers porosity and shape on crystal growth and composite strengthening". Computational Materials Science 176 (квітень 2020): 109538. http://dx.doi.org/10.1016/j.commatsci.2020.109538.

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18

Zeng, Xingming, Lihua Wang, Yi Hu, Bolun Fang, Sadaf Bashir khan, and Shern-Long Lee. "Dynamics of Supramolecular Crystal Growth at the Liquid–Solid Interface Studied via Scanning Tunneling Microscope and the Avrami Equation." Journal of Physical Chemistry C 125, no. 19 (2021): 10451–57. http://dx.doi.org/10.1021/acs.jpcc.1c01336.

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19

Bock, Hans, and Erik Heigel. "Wechselwirkungen in Molekülkristallen, 157 [1, 2]. Mischkristallzüchtung und Strukturbestimmungen von Tetra(3,4-dimethylphenyl)-imidodiphosphat-Salzen mit Alkalikation- Verhältnissen K⊕/Rb⊕(1:5) und Rb⊕/Cs⊕(1:1) / Interaction in Molecular Crystals, 157 [1, 2]. Mixed Crystal Growth and Structure Determinations of Tetrakis(3,4-dimethylphenyl)-imidodiphosphate Salts with Alkali Cation Ratios K⊕/Rb⊕ (1:5) and Rb⊕/Cs⊕ (1:1)." Zeitschrift für Naturforschung B 55, no. 9 (2000): 785–95. http://dx.doi.org/10.1515/znb-2000-0902.

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Mixed crystals of tetrakis(3,4-dimethylphenyl)imidodiphosphate salts with alkalication ratios K⊕/Rb⊕ (1:5) and Rb⊕/Cs⊕ (1:1), (1:3) as well as (3:1) have been grown by suspending finely ground stoichiometric mixtures of alkali carbonates in toluene solutions of the strongly chelating ligand HN(PO(OR)2)2 - The cation ratios were measured by Total Reflexion X-Ray Fluorescence (TXRF) analysis and the single crystal structures of the polymeric K⊕/Rb⊕ as well as the Rb⊕/Cs⊕ imidodiphosphate salts determined by X-ray structure analysis. The selectivity of the various alkali ions for insertion in the

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20

Yang, Hui, and Ming Wah Wong. "Application of Halogen Bonding to Organocatalysis: A Theoretical Perspective." Molecules 25, no. 5 (2020): 1045. http://dx.doi.org/10.3390/molecules25051045.

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The strong, specific, and directional halogen bond (XB) is an ideal supramolecular synthon in crystal engineering, as well as rational catalyst and drug design. These attributes attracted strong growing interest in halogen bonding in the past decade and led to a wide range of applications in materials, biological, and catalysis applications. Recently, various research groups exploited the XB mode of activation in designing halogen-based Lewis acids in effecting organic transformation, and there is continual growth in this promising area. In addition to the rapid advancements in methodology dev

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21

Balakrishnan, C., M. Manonmani, S. Rafi Ahamed, G. Vinitha, S. P. Meenakshisundaram, and R. M. Sockalingam. "Supramolecular cocrystals of O—H...O hydrogen-bonded 18-crown-6 with isophthalic acid derivatives: Hirshfeld surface analysis and third-order nonlinear optical properties." Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 76, no. 2 (2020): 241–51. http://dx.doi.org/10.1107/s2052520620001821.

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Two cocrystals of 18-crown-6 with isophthalic acid derivatives, 5-hydroxyisophthalic acid and trimesic acid, have been successfully grown by the slow evaporation solution growth technique. Crystal structures of (18-crown-6)·6(5-hydroxyisophthalic acid)·10(H2O) (I) and (18-crown-6)·2(trimesic acid)·2(H2O) (II) elucidated by single crystal X-ray diffraction reveal that both cocrystals pack the centrosymmetric triclinic space group P{\overline 1}. The molecules are associated by strong/weak hydrogen bonds, π...π and H...H stacking interactions. Powder X-ray diffraction analyses, experimental and

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22

Pratama, Killang, and Christian Motz. "Strategies to Achieve High Strength and Ductility of Pulsed Electrodeposited Nanocrystalline Co-Cu by Tuning the Deposition Parameters." Molecules 25, no. 21 (2020): 5194. http://dx.doi.org/10.3390/molecules25215194.

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Strategies to improve tensile strength and ductility of pulsed electrodeposited nanocrystalline Co-Cu were investigated. Parameters of deposition, which are pulse current density, duty cycle, and pulse-on time were adjusted to produce nanocrystalline Co-Cu deposits with different microstructures and morphologies. The most significant improvement of strength and ductility was observed at nanocrystalline Co-Cu deposited, at a low duty cycle (10%) and a low pulse-on time (0.3 ms), with a high pulse current density (1000 A/m2). Enhancement of ductility of nanocrystalline Co-Cu was also obtained th

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23

Tofighi, Aliassghar, A. Rosenberg, M. Sutaria, S. Balata, and J. Chang. "New Generation of Synthetic, Bioresorbable and Injectable Calcium Phosphate Bone Substitute Materials: Alpha-bsm^®, Beta-bsm^TM and Gamma-bsm^TM." Journal of Biomimetics, Biomaterials and Tissue Engineering 2 (May 2009): 39–55. http://dx.doi.org/10.4028/www.scientific.net/jbbte.2.39.

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Alpha-bsm® is a first generation self-setting, injectable and moldable apatitic calcium phosphate cement (CPC) based on amorphous calcium phosphate (ACP). ACP was prepared using low temperature double decomposition technique, from a calcium solution (0.16 M), and phosphate solution (0.26 M) in a basic (pH~13) media. ACP was than stabilized using three crystal growth inhibitors (CO32-, Mg2+, P2O74-), freeze-dried, and heated (450 °C, 1h) to remove additional moisture and some inhibitors. Dicalcium phosphate dehydrate (DCPD) was also prepared using wet chemistry at room temperature from calcium

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24

Lenshin, Alexander S., Anatoly N. Lukin, Yaroslav A. Peshkov та ін. "Features of the two-stage formation of macroporous and mesoporous silicon structuresя". Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases 23, № 1 (2021): 41–48. http://dx.doi.org/10.17308/kcmf.2021.23/3300.

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The aim of this work was the formation of multilayer structures of macroporous silicon and the study of their structural, morphological, and optical properties in comparison with the properties of multilayer structures of mesoporous silicon. The paper presents the results of the development of techniques for the formation of multilayer structures of porous silicon por-Si by stepwise change in the current with two-stage modes of electrochemical etching.The data on the morphology, composition, and porosity of macroporous and mesoporous silicon samples were obtained using scanning electron micros

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25

Spruzeniece, L., and S. Piazolo. "Strain localization in brittle–ductile shear zones: fluid-abundant vs. fluid-limited conditions (an example from Wyangala area, Australia)." Solid Earth 6, no. 3 (2015): 881–901. http://dx.doi.org/10.5194/se-6-881-2015.

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Abstract. This study focuses on physiochemical processes occurring in a brittle–ductile shear zone at both fluid-present and fluid-limited conditions. In the studied shear zone (Wyangala, SE Australia), a coarse-grained two-feldspar–quartz–biotite granite is transformed into a medium-grained orthogneiss at the shear zone margins and a fine-grained quartz–muscovite phyllonite in the central parts. The orthogneiss displays cataclasis of feldspar and crystal-plastic deformation of quartz. Quartz accommodates most of the deformation and is extensively recrystallized, showing distinct crystallograp

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26

Lenshin, Alexander S., Konstantin A. Barkov, Natalya G. Skopintseva, Boris L. Agapov та Evelina P. Domashevskaya. "Влияние режимов электрохимического травления при одностадийном и двухстадийном формировании пористого кремния на степень окисления его поверхностных слоев в естественных условиях". Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases 21, № 4 (2019): 534–43. http://dx.doi.org/10.17308/kcmf.2019.21/2364.

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В работе методами растровой электронной микроскопии и ультрамягкойрентгеновской эмиссионной спектроскопии были проведены исследования особенностейформирования многослойных структур пористого кремния и установлено влияние изменения плотности тока при электрохимическом травлении монокристаллических пластин кремния на фазовый состав поверхностных слоев сформированной пористой структуры.     ЛИТЕРАТУРА1. Moshnikov V., Gracheva I., Lenshin A., Spivak Yu. Porous silicon with embedded metal oxides for gassensing applications // Journal of Non-Crystalline Solids, 2012 v.

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27

Balendra, Bharti Singh, Azeem Banday, et al. "Synthesis, crystal structures, dielectric and magnetic properties of manganese sulfonyldibenzoates." CrystEngComm, 2021. http://dx.doi.org/10.1039/d1ce00810b.

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Six coordination polymers based on Mn(ii) and V-shaped ligand were successfully isolated and their dielectric as well as magnetic behaviours were investigated. The paper also discusses the growth of solids in terms of supramolecular aggregation.

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28

Butreddy, Pravalika, Selina Laws, Premitha Pansalawatte, Eric Laws, and Hemali Rathnayake. "Supramolecular Chemistry of Folic Acid — Experimental and Computational Investigation." Biophysical Reviews and Letters, August 11, 2021, 1–15. http://dx.doi.org/10.1142/s1793048021500053.

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Supramolecular chemistry of folic acid is studied and revealed by exploring its assembly and disassembly process in a liquid–liquid interface. Experimental and computational studies are conducted to understand the interfacial interactions of folic acid in a oil-in-water interface by investigating the role of folic acid’s critical aggregation concentration (CAC), molecular arrangement, and intermolecular interactions at the molecular level. The folic acid’s CAC, determined from the concentration-dependent UV–vis absorption spectra in water/methanol solvent system, is found to be 2.72[Formula: s

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29

Jaynes, Tyler J., Mona Sharafi, Joseph P. Campbell, et al. "Iterative Exponential Growth of Oxygen-Linked Aromatic Polymers Driven by Nucleophilic Aromatic Substitution Reactions." Frontiers in Chemistry 9 (April 28, 2021). http://dx.doi.org/10.3389/fchem.2021.620017.

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This work presents the first transition metal-free synthesis of oxygen-linked aromatic polymers by integrating iterative exponential polymer growth (IEG) with nucleophilic aromatic substitution (SNAr) reactions. Our approach applies methyl sulfones as the leaving groups, which eliminate the need for a transition metal catalyst, while also providing flexibility in functionality and configuration of the building blocks used. As indicated by 1) 1H-1H NOESY NMR spectroscopy, 2) single-crystal X-ray crystallography, and 3) density functional theory (DFT) calculations, the unimolecular polymers obta

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30

Joshi, Vikram, Grace K. Goo, and Martha L. Mecartney. "Microstructural Variations in Sol-Gel Processed Lithium Niobate thin Films." MRS Proceedings 271 (1992). http://dx.doi.org/10.1557/proc-271-377.

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ABSTRACTLiNbO3 thin films were deposited by dip coating Li-Nb alkoxide solutions onto silicate glass substrates and single crystal sapphire substrates. Microstructural characterization using transmission electron microscopy (TEM) showed significant differences in film microstructures dependent on the initial solution chemistry. Fully crystalline films could be obtained after heat treatments at 400°C in air. The grain size and porosity were dependent on the amount of water of hydrolysis in the alkoxide sol. The higher the water content, the larger the grain size and porosity. Crystallization st

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31

Schriber, Elyse A., Daniel J. Rosenberg, Ryan P. Kelly, Anita Ghodsi, and J. Nathan Hohman. "Investigation of Nucleation and Growth at a Liquid–Liquid Interface by Solvent Exchange and Synchrotron Small-Angle X-Ray Scattering." Frontiers in Chemistry 9 (July 20, 2021). http://dx.doi.org/10.3389/fchem.2021.593637.

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Hybrid nanomaterials possess complex architectures that are driven by a self-assembly process between an inorganic element and an organic ligand. The properties of these materials can often be tuned by organic ligand variation, or by swapping the inorganic element. This enables the flexible fabrication of tailored hybrid materials with a rich variety of properties for technological applications. Liquid-liquid interfaces are useful for synthesizing these compounds as precursors can be segregated and allowed to interact only at the interface. Although procedurally straightforward, this is a comp

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32

Byrne, Maria, and Susan Fitzer. "The impact of environmental acidification on the microstructure and mechanical integrity of marine invertebrate skeletons." Conservation Physiology 7, no. 1 (2019). http://dx.doi.org/10.1093/conphys/coz062.

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Abstract Ocean acidification (OA), from seawater uptake of anthropogenic CO2, has a suite of negative effects on the ability of marine invertebrates to produce and maintain their skeletons. Increased organism pCO2 causes hypercapnia, an energetically costly physiological stress. OA alters seawater carbonate chemistry, limiting the carbonate available to form the calcium carbonate (CaCO3) minerals used to build skeletons. The reduced saturation state of CaCO3 also causes corrosion of CaCO3 structures. Global change is also accelerating coastal acidification driven by land-run off (e.g. acid soi

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Schulz, Bernhard. "Monazite Microstructures and Their Interpretation in Petrochronology." Frontiers in Earth Science 9 (April 12, 2021). http://dx.doi.org/10.3389/feart.2021.668566.

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The phosphate mineral monazite (LREE,Y,Th,Ca,Si)PO4 occurs as an accessory phase in peraluminous granites and Ca-poor meta-psammopelites. Due to negligible common Pb and very low Pb diffusion rates at high temperatures, monazite has received increasing attention in geochronology. As the monazite grain sizes are mostly below 100 μm in upper greenschist to amphibolite facies meta-psammopelites, and rarely exceed 250 μm in granulite facies gneisses and in migmatites, microstructural observation and mineral chemical analysis need the investigation by scanning electron microscope and electron probe

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