Reticular synthesis and the design of new ..
Reticular synthesis (Yaghi , 2003) is producing a cornucopia of new crystalline materials due to the availability of a variety of structural units and linkers that can be combined in myriad ways to produce high-quality crystals. To harness the richness of this `crystal engineering', simple representations of complex structures are needed to guide understanding and design (O'Keeffe & Yaghi, 2012). In some cases topological features, such as minimum ring size, provide good guides to expected material properties, especially for nanoporous materials such as zeolites for catalytic applications. In this issue, building on a community effort dating back decades, Jean-Guillaume Eon (2016) reports on a finite `quotient graph' representation of complex crystal structures, and demonstrates that this representation provides a significant reduction in graph complexity while preserving key topological properties such as minimum ring size.
Synthesis of Metal-Organic Frameworks (MOFs): Routes …
In the past decade, considerable research efforts have been expended on nanoporous materials due to their excellent properties for many applications, such as gas storage and sieving, catalysis, selectivity, sensoring and filtration . In 1994, Yaghi and co-workers introduced ways to synthesize extended structures by design. This new discipline is known as reticular chemistry [–], which uses well-defined building blocks to create extended crystalline structures. The feasibility of the building block approach and the geometry preservation throughout the assembly process are the key factors that lead to the design and synthesis of reticular structures.
The papers published here reflect the increasing sophistication of and the change of emphasis on the subject, which is moving away from merely cataloging the methods of synthesis and structures of new materials toward the deliberate synthesis of materials designed to have novel and useful properties.