Journal ArticleDOI
Molecular tectonics Use of urethanes and ureas derived from tetraphenylmethane and tetraphenylsilane to build porous chiral hydrogen-bonded networks
Reads0
Chats0
TLDR
Tetraphenylmethane and simple derivatives with substituents that do not engage in hydrogen bonding typically crystallize as close-packed structures with essentially no space ava...Abstract:
Tetraphenylmethane, tetraphenylsilane, and simple derivatives with substituents that do not engage in hydrogen bonding typically crystallize as close-packed structures with essentially no space ava...read more
Citations
More filters
Journal ArticleDOI
Single-crystal x-ray diffraction structures of covalent organic frameworks
Tianqiong Ma,Tianqiong Ma,Eugene A. Kapustin,Shawn X. Yin,Lin Liang,Zhengyang Zhou,Jing Niu,Li-Hua Li,Wang Yingying,Jie Su,Jian Li,Xiaoge Wang,Wei David Wang,Wei Wang,Junliang Sun,Omar M. Yaghi,Omar M. Yaghi +16 more
TL;DR: A general procedure to grow large single crystals of three-dimensional imine-based covalent organic framework materials and to collection of single-crystal x-ray diffraction data of up to 0.83-angstrom resolution, leading to unambiguous solution and precise anisotropic refinement.
Journal ArticleDOI
Bubble Formation and Bubble Rise Velocity in Gas−Liquid Systems: A Review
Abstract: The formation of gas bubbles and their subsequent rise due to buoyancy are very important fundamental phenomena that contribute significantly to the hydrodynamics in gas−liquid reactors. The rise o...
Journal ArticleDOI
Crystal engineering with urea and thiourea hydrogen-bonding groups
TL;DR: The utilization of N,N'-disubstituted ureas and thioureas as design elements in the synthesis of crystalline organic solids is reviewed.
Journal ArticleDOI
Periphery‐Substituted [4+6] Salicylbisimine Cage Compounds with Exceptionally High Surface Areas: Influence of the Molecular Structure on Nitrogen Sorption Properties
Markus Schneider,Iris M. Oppel,Holger Ott,Lorenz Lechner,Hans-Jochen S. Hauswald,Raphael Stoll,Michael Mastalerz +6 more
TL;DR: The synthesis of various periphery-substituted shape-persistent cage compounds by twelve-fold condensation reactions of four triptycene triamines and six salicyldialdehydes is described, where the substituents systematically vary in bulkiness.
Journal ArticleDOI
Molecular tectonics. Selective exchange of cations in porous anionic hydrogen-bonded networks built from derivatives of tetraphenylborate.
TL;DR: Together, these observations provide new strategies for making ordered molecular materials by design, and they reveal that constructing such materials from charged subunits offers special advantages.
References
More filters
Journal ArticleDOI
Interpenetrating Nets: Ordered, Periodic Entanglement.
TL;DR: A detailed and systematic examination of many interpenetrating nets of this kind is made, and implications for crystal engineering are discussed.
Journal ArticleDOI
BYPASS: an effective method for the refinement of crystal structures containing disordered solvent regions
P. van der Sluis,A. L. Spek +1 more
TL;DR: In this article, a method for least squares refinement of the atomic parameters of the ordered part of a crystal structure in the presence of disordered solvent areas is described, and the contribution of the observed contents to the total structure factor is calculated via a discrete Fourier transformation.
Journal Article
Crystal engineering : the design of organic solids
TL;DR: The Atom-Atom Potential Method and the Close-Packing Model for Molecular Crystals as mentioned in this paper have been used to predict the crystal structures of organic molecules using the Kitaigorodskii model.
Journal ArticleDOI
Molecular tectonics in biomineralization and biomimetic materials chemistry
TL;DR: The basic constructional processes of biomineralization (supramolecular pre-organization, interfacial molecular recognition (templating) and cellular processing) can provide useful archetypes for molecular-scale building, or "molecular tectonics" in inorganic materials chemistry.