Journal ArticleDOI
From Molecules to Interactions to Crystal Engineering: Mechanical Properties of Organic Solids.
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TLDR
This Account describes efforts at focusing down into mechanical properties of organic molecular crystals from the viewpoint of crystal engineering, which is the synthesis and design of functional molecular solids and presents examples where complex properties may be deliberately turned on or off in organic crystals.Abstract:
ConspectusMechanical properties of organic molecular crystals have been noted and studied over the years but the complexity of the subject and its relationship with diverse fields such as mechanochemistry, phase transformations, polymorphism, and chemical, mechanical, and materials engineering have slowed understanding. Any such understanding also needs conceptual advances—sophisticated instrumentation, computational modeling, and chemical insight—lack of such synergy has surely hindered progress in this important field. This Account describes our efforts at focusing down into this interesting subject from the viewpoint of crystal engineering, which is the synthesis and design of functional molecular solids. Mechanical properties of soft molecular crystals imply molecular movement within the solid; the type of property depends on the likelihood of such movement in relation to the applied stress, including the ability of molecules to restore themselves to their original positions when the stress is removed...read more
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Structure Property Correlation of a Series of Halogenated Schiff Base Crystals and Understanding of the Molecular Basis Through Nanoindentation
Ragaverthini Chinnasamy,Amutha Arul,Ammar AlMousa,Mangalampalli S. R. N. Kiran,Priyadip Das,Almaz S. Jalilov,Abdul Malik Puthan Peedikakkal,Soumyajit Ghosh +7 more
TL;DR: In this article, a family of halo structures for soft molecular crystals has been described, and the authors describe a halo structure for a specific type of soft molecular crystal, which they call "soft molecular crystals".
Journal ArticleDOI
Energetic Cocrystallization as the Most Significant Crystal Engineering Way to Create New Energetic Materials
TL;DR: A brief overview of ECCs regarding the component, intermolecular interaction, packing structure, main properties, and preparation, as well as a theoretical treatment and some issues raised for future development are presented in this paper .
Journal ArticleDOI
Plastically Deformable and Exfoliating Molecular Crystals of a 2-D Coordination Polymer and Its Ligand
TL;DR: In this article, the van der Waals interactions of the hexyl chains contribute toward the formation of slip plane parallel to the wider face of the crystals, which is necessary for their plastic deformability.
Journal ArticleDOI
Co‐Assembly Induced Solid‐State Stacking Transformation in Amino Acid‐Based Crystals with Enhanced Physical Properties
Wei-Yun Ji,Hui Yuan,Bin Xue,Sarah Guerin,Hui Li,Lei Zhang,Yanqing Liu,Linda J. W. Shimon,Mingsu Si,Yi Cao,Damien Thompson,Kaiyong Cai,Rusen Yang,Ehud Gazit +13 more
TL;DR: In this paper , an unexpected cofacial to herringbone stacking transformation of a small aromatic bipyridine through co-assembly with acetylated glutamic acid was reported.
Journal ArticleDOI
Bendable and Twistable Crystals of Flufenamic Acid Form III with Bending Mechanofluorochromism Behavior
TL;DR: In this paper , a soft single crystal with mechanical induced fluorescence modulation appears to be of interest to the design of future tunable fluorescent materials, which shows highly plastic bending along (001) face and hand-twistable behavior under applied external force.
References
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Journal ArticleDOI
Photodimerization in the solid state
TL;DR: In this article, a review of solid-state photochemistry can be found under four parallel headings: first, analysis of the topochemical postulate according to which the course of the solid state reaction and the stereochemistry of the photodimer (if any) can be predicted from the configuration and nearest-neighbour geometry of closest monomer molecules in the crystal lattice; secondly, the study of the lOCUS of the reaction, that is the dependence of the course or (dimerization, cis trans isomerization) on crystal texture (dislocation
Journal ArticleDOI
Isostructurality, Polymorphism and Mechanical Properties of Some Hexahalogenated Benzenes: The Nature of Halogen⋅⋅⋅Halogen Interactions
C. Malla Reddy,Michael T. Kirchner,Ravi C. Gundakaram,K. Anantha Padmanabhan,Gautam R. Desiraju +4 more
TL;DR: Both chemical and geometrical models need to be considered for X...X interactions in hexahalogenated benzenes, where nonspecificity of the weak interlayer interactions here is demonstrated by the structure of twinned crystals of these compounds.
Journal ArticleDOI
Mechanochemical preparation of co-crystals
TL;DR: The preparation of co-crystals via mechanochemistry combines the quest for clean and green processes with the investigation of multicomponent new materials, among the currently most fashionable systems in the crystal engineering field.
Journal ArticleDOI
Mechanochemistry: the varied applications of mechanical bond-breaking
TL;DR: In this paper, a wide range of practical applications of mechanochemistry are outlined with typical examples for ceramics, mechanical alloying, hydrogen storage, organic syntheses, waste remediation, leachings, surface plasmas, radical formation, explosives, nanotube formation, nanoparticles grafting, polymer technology, radical initiation, scratchless polishing, wear protection, lubrication, mechanochromism, nano-dissection, and many more.
Journal ArticleDOI
Elastic and bendable caffeine cocrystals: implications for the design of flexible organic materials.
Soumyajit Ghosh,C. Malla Reddy +1 more
TL;DR: A remarkably flexible, elastically bendable cocrystal solvate 1 is reported, formed from caffeine, 4-chloro-3-nitrobenzoic acid, and methanol in a 1:1:< 1 ratio (Figure 1).
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