The pores in metal-organic frameworks (MOFs) can be functionalized by placing chemical entities along the backbone and within the backbone. This chemistry is enabled by the architectural, thermal, and chemical robustness of the frameworks and the ability to characterize them by many diffraction and spectroscopic techniques. The pore chemistry of MOFs is articulated in terms of site isolation, coupling, and cooperation and relate that to their functions in guest recognition, catalysis, ion and electron transport, energy transfer, pore-dynamic modulation, and interface construction. It is envisioned that the ultimate control of pore chemistry requires arranging functionalities into defined sequences and developing techniques for reading and writing such sequences within the pores.

Christian Diercks studied chemistry at the University of Heidelberg and carried out undergraduate research in the group of Prof. Jean-Pierre Sauvage at the University of Strasbourg (France), as well as at Northwestern University (USA) under the guidance of Sir James Fraser Stoddart. He obtained his Ph.D. from UC Berkeley under the mentorship of Prof. Omar M. Yaghi in 2018 for his work on covalent organic frameworks. Currently,hei sapostdoctoral researcher in the group of Prof. Peter G. Schultz at the Scripps Research Institute, working on adding new chemistries to the processes of the central dogma of molecular biology.

Reticular chemistry is a growing field of science with a multitude of practitioners with diverse frames of thinking, making the need for standard practices and quality indicators ever more compelling.

Channel expansion of flexible molecular architectures endowed with porosity has been proved to be responsive to gas stimuli, such as pressurized CO2, CH4, Xe and hydrocarbons.

Multiple hydrogen bonding motifs are promising tools for polymer functionalization to obtain adaptable networks combining advantages of permanently cross-linked systems with processability of thermoplastics. Here we describe the use of a new multiple hydrogen bonding motif to impart increased tensile strength, stiffness, barrier properties, and a plateau modulus after melting to functional polyolefins, while retaining adaptability of the polymer network. The cross-linked nature of these polymers was elucidated by thermal and mechanical analysis, revealing a raised glass transition and rheology similar to permanently cross-linked polymer matrices. The apolar polymer matrix was found to stabilize the new hydrogen bonding motif at elevated temperatures. The resulting polymer showed thermal resistance superior to ureidopyrimidone (UPy) motif functionalized materials, the most commonly employed synthetic multiple hydrogen bonding motif to date.

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Stefan Wuttke gründete die Arbeitsgruppe "WuttkeGroup for Science", welche zunächst am Lehrstuhl fürP hysikalische Chemie an der UniversitätMünchen (LMU) angesiedelt war.D erzeit ist er ein Ikerbasque Professor am BaskischenZ entrum fürMaterialien, Anwendungen und Nanostrukturen (BCMaterials, Spanien).S eine Forschung konzentriert sich auf die Entwicklung von Methoden zum Schreiben und Lesen chemischer Informationen auf und aus dem Rückgrat von hybriden Gerüstmaterialien. Darüber hinaus umfassen seine Forschungsinteressen das Verständnisder chemischen und physikalischen Prozesse,d ie an ihrer Synthese und Funktionalisierung beteiligt sind. Christian Diercks studierte Chemiea nder UniversitätHeidelberg und führte im Grundstudium Forschungsarbeiten in der Gruppe von Prof. Jean-Pierre Sauvage an der Univer-sitätStraßburg sowie an der Northwestern University unter der Leitung von Sir James F. Stoddart durch. Seinen Ph.D. erhielt er 2018 an der UC Berkeley unter der Betreuung von Prof. Omar M. Yaghi fürs eine Arbeit über kovalente organischeG erüstverbindungen. Derzeit ist er Postdoktorandin der Gruppe von Prof. Peter G. Schultz am Scripps Research Institut und arbeitet daran, die Prozesse des zentralen Dogmas der Molekularbiologie um neue Chemien zu erweitern.

The aromatic methylene blue cation (MB) shows unprecedented ligand behavior in the X-ray structures of the trigonal-planar (TP) complexes MBMCl (M = Cu, Ag). The two isostructural compounds were exclusively synthesized by grinding together methylene blue chloride and MCl solids. Only in the case of AuCl did the technique lead to a different, yet isoformular, Au derivative with separated MB and AuCl counterions and no direct N-Au linkage. While the density functional theory (DFT) molecular modeling failed in reproducing the isolated Cu and Ag complexes, the solid-state program CRYSTAL satisfactorily provided for Cu the correct TP building block associated with a highly compact π stacking of the MB ligands. In this respect, the dispersion interactions, evaluated with the DFT functional, provide to the system an extra energy, which likely supports the unprecedented metal coordination of the MB cation. The feature seems governed by subtle chemical factors, such as, for instance, the selected metal ion of the coinage triad. Thus, the electronically consistent Au ion does not form the analogous TP building block because of a looser supramolecular arrangement. In conclusion, while a given crystalline design is generally fixed by the nature of the building block, a peculiarly efficient supramolecular packing may stabilize an otherwise unattainable metal complex.