A5101439071- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Metal-Organic Frameworks: Synthesis and Applications
- Crystallography and molecular interactions
- Quasicrystal Structures and Properties
- Zeolite Catalysis and Synthesis
- Crystal Structures and Properties
- Supramolecular Self-Assembly in Materials
- Magnetism in coordination complexes
- Covalent Organic Framework Applications
- Polyoxometalates: Synthesis and Applications
- Fullerene Chemistry and Applications
- Copper-based nanomaterials and applications
- Inorganic Fluorides and Related Compounds
- Mesoporous Materials and Catalysis
- Boron and Carbon Nanomaterials Research
- Advanced Chemical Physics Studies
- History and advancements in chemistry
- Supramolecular Chemistry and Complexes
- Silicone and Siloxane Chemistry
- Cellular Automata and Applications
- Liquid Crystal Research Advancements
- Nuclear Materials and Properties
- Advanced Materials Characterization Techniques
- Geometric and Algebraic Topology
Arizona State University
2014-2025
The University of Queensland
2022-2023
RTX (United States)
2022
Tempe Union High School District
2011-2018
Korea Advanced Institute of Science and Technology
2013-2014
Zhejiang University
2012-2014
University of California, Los Angeles
2009-2012
University of Michigan
2000-2005
University of Minnesota
2001
Yale University
2001
Bond-valence parameters which relate bond valences and lengths have been derived for a large number of bonds. It is shown that there strong linear correlation between the bonds from cations to pairs anions. This used develop an interpolation scheme allows estimation bond-valence 969 atoms. A complete listing these given.
Covalent organic frameworks (COFs) have been designed and successfully synthesized by condensation reactions of phenyl diboronic acid {C6H4[B(OH)2]2} hexahydroxytriphenylene [C18H6(OH)6]. Powder x-ray diffraction studies the highly crystalline products (C3H2BO)6·(C9H12)1 (COF-1) C9H4BO2 (COF-5) revealed expanded porous graphitic layers that are either staggered (COF-1, P63/mmc) or eclipsed (COF-5, P6/mmm). Their crystal structures entirely held strong bonds between B, C, O atoms to form...
We report a strategy to expand the pore aperture of metal-organic frameworks (MOFs) into previously unattained size regime (>32 angstroms). Specifically, systematic expansion well-known MOF structure, MOF-74, from its original link one phenylene ring (I) two, three, four, five, six, seven, nine, and eleven (II XI, respectively), afforded an isoreticular series MOF-74 structures (termed IRMOF-74-I XI) with apertures ranging 14 98 angstroms. All members this have noninterpenetrating exhibit...
Five new crystalline zeolitic imidazolate frameworks (ZIFs), ZIF-78 to -82, were prepared from zinc(II) nitrate and mixtures of 2-nitroimidazole five different functionalized imidazoles found have the GME topology. These structures, along with three previously reported ZIFs, constitute a series highly porous materials Brunauer-Emmet-Teller surface areas ranging 620 1730 m(2)/g. The pore diameters apertures vary incrementally 7.1 15.9 A 3.8 13.1 A, respectively, functionalities decorating...
A set of terms, definitions, and recommendations is provided for use in the classification coordination polymers, networks, metal–organic frameworks (MOFs). hierarchical terminology recommended which most general term polymer. Coordination networks are a subset polymers MOFs further networks. One criteria an MOF needs to fulfill that it contains potential voids, but no physical measurements porosity or other properties demanded per se. The topology descriptors enhance description crystal...
Coordination polymers (CPs) and metal–organic frameworks (MOFs) are among the most prolific research areas of inorganic chemistry crystal engineering in last 15 years, yet it still seems that consensus is lacking about what they really are, or not.
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTCu2(ATC)·6H2O: Design of Open Metal Sites in Porous Metal−Organic Crystals (ATC: 1,3,5,7-Adamantane Tetracarboxylate)Banglin Chen, M. Eddaoudi, T. Reineke, J. W. Kampf, O'Keeffe, and O. YaghiView Author Information Materials Discovery Group Department Chemistry, University Michigan 930 North University, Ann Arbor, 48109-1055 Chemistry Biochemistry Arizona State Tempe, 85287-1604 Cite this: Am. Chem. Soc. 2000, 122, 46, 11559–11560Publication...
Regular nets are defined as those with symmetry that requires the coordination figure to be a regular polygon or polyhedron. It is shown this definition leads five 3-periodic nets. There also one quasiregular net figure. The natural tiling of and its associated essential rings defined, it tilings have property there just kind vertex, edge, ring tile, i.e. transitivity 1111. has two kinds tile 1112.
The first near-infrared luminescent ytterbium metal-organic framework has been realized for the highly selective and sensitive sensing of small molecules.
The concept and occurrence of isoreticular (same topology) series metal–organic frameworks (MOFs) is reviewed. We describe the preparation, characterization, crystal structures three new MOFs that are expansions known materials with tbo (Cu3(4,4′,4″-(benzene-1,3,5-triyl-tris(benzene-4,1-diyl))tribenzoate)2, MOF-399) pto topologies (Cu3(4,4′,4″-(benzene-1,3,5-triyl-tribenzoate)2, MOF-143; Cu3(4,4′,4″-(triazine-2,4,6-triyl-tris(benzene-4,1-diyl))tribenzoate)2, MOF-388). One these (MOF-399) has...
Intricacy anchored by uranium Metal-organic frameworks generally have one level of assembly complexity: Organic linkers join inorganic nodes in a repeating lattice. Li et al. created structure composed cuboctahedra, assembled from cations and organic linkers, that shared triangular faces to form prisms. These structures formed cages, which turn joined make tetrahedra with diamond-lattice topology. This hierarchical open generated huge unit cell more than 800 containing internal cavities...
A new family of porous crystals was prepared by combining 1H-1,2,3-triazole and divalent metal ions (Mg, Mn, Fe, Co, Cu, Zn) to give six isostructural metal-triazolates (termed MET-1 6). These materials are as microcrystalline powders, which intense X-ray diffraction lines. Without previous knowledge the expected structure, it possible apply newly developed charge-flipping method solve complex crystal structure METs: all octahedrally coordinated nitrogen atoms triazolate such that five...
A bismuth-based metal–organic framework (MOF), [Bi(BTC)(H2O)]·2H2O·MeOH denoted CAU-17, was synthesized and found to have an exceptionally complicated structure with helical Bi–O rods cross-linked by 1,3,5-benzenetricarboxylate (BTC3–) ligands. Five crystallographically independent 1D channels including two hexagonal channels, rectangular one triangular channel accessible diameters of 9.6, 3.6, 3.4 Å, respectively. The is further twinning. Rod-incorporated MOF structures typically underlying...
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTLarge Free Volume in Maximally Interpenetrating Networks: The Role of Secondary Building Units Exemplified by Tb2(ADB)3[(CH3)2SO]4·16[(CH3)2SO]1Theresa M. Reineke, Mohamed Eddaoudi, David Moler, O'Keeffe, and O. YaghiView Author Information Materials Design Discovery Group Department Chemistry, University Michigan Ann Arbor, 48109 Chemistry Biochemistry Arizona State University, Tempe, 85287 Cite this: J. Am. Chem. Soc. 2000, 122, 19,...
The synthesis of an NbO-type metal-organic framework was achieved by design: o-Br-BDC (BDC = benzenedicarboxylate) used to direct the formation Cu2(CO2)4 paddle wheel units at 90 degrees each other and thus yield target network. compound formulated as Cu2[o-Br-BDC]2(H2O)2.(DMF)8(H2O)2 (MOF-101) characterized single-crystal X-ray diffraction [cubic, space group Imm (No. 229) with a 21.607(3) A, V 10088(2) A3, Z 6], which fully confirmed presence expected structure. Despite having very large...
The energetics and band structures of the elemental semiconductor Si in two fourfold-coordinated clathrate have been studied. For Si(34) Si(46) we predict indirect gaps near 1.9 eV, or 0.7 eV wider than that well-known ${\mathit{sp}}^{3}$ diamond structure. We find energy differences between structure are about 0.07 which is nearly three times smaller those for more compact high-pressure Si. calculations done using an ab initio tight-binding-like molecular-dynamics method, further checked by...
Three-periodic semiregular nets are defined as those with just one kind of vertex and edge, but excluding the five regular quasiregular described earlier. Fourteen these their natural tilings importance in crystal chemistry is indicated.