Engineering crystal properties through solid solutions
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TL;DR: In this article, a structural disorder is characterized by a variation of stoichiometry in continuum, and the variation corresponds to physicochemical properties, and offers an opportunity for the materials' fine-tuning.
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Abstract: The control of structures and properties in crystalline materials has many returns that justify the increasing efforts in this direction. Traditionally, crystal engineering focused on the rational design of single component molecular crystals or supramolecular compounds (i.e., cocrystals). More recently, reports on crystalline solid solutions have become common in crystal engineering research. Crystalline solid solutions are characterized by a structural disorder that enables the variation of stoichiometry in continuum. Often such variation corresponds to a variation of structural and physicochemical properties, and offers an opportunity for the materials’ fine-tuning. In some cases, though, new and unexpected properties emerge. As illustrated here, both behaviors make solid solutions particularly relevant to the scope of crystal engineering.
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Citations
A Practical Guide to the Design of Molecular Crystals
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TL;DR: The crux of this Account is that far from being a serendipitous matter, higher cocrystals may only be made with a judicious combination of strategy and methodology-the essence of synthesis.
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Modular chemistry: secondary building units as a basis for the design of highly porous and robust metal-organic carboxylate frameworks.
Mohamed Eddaoudi,David B. Moler,Hailian Li,Banglin Chen,Theresa M. Reineke,Michael O'Keeffe,Omar M. Yaghi +6 more
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Supramolecular Synthons in Crystal Engineering—A New Organic Synthesis
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