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Search query: alkaline earth MOF materials
8 articles match your search "alkaline earth MOF materials"Results 1 to 8, sorted by relevance:
research communications
access
A new alkaline earth metal three-dimensional polar MOF structure in barium carbamoylcyanonitrosomethanide is governed by bridging coordination of the nitroso- and aqua O-atoms, which support a face-sharing connection of coordination polyhedra.
research papers
Theoretical and experimental investigations on non-linear optical properties of four metal–organic framework isomorphs, based on fructose and alkali-earth halogenides, show that both the intrinsic nature of the anion and the induced dissociation of the cation and anion by fructose play a role in the second-harmonic generating properties of such compounds.
mineralogical crystallography
The discovery of naturally occurring metal–organic framework (MOF) minerals highlights the connection between crystal engineering and mineralogy. It is shown how classification of such organic minerals rests on concepts of supramolecular chemistry, coordination chemistry and crystal engineering.
research papers
A new luminescent heterometallic zinc(II)–barium(II)-based anionic metal–organic framework, (ImH)[BaZn3(BTC)3(H2O)3]·4H2O (ImH is imidazolium and BTC is benzene-1,3,5-tricarboxylate), presents a three-dimensional framework with an unprecedented (3,5)-connected topology of the point symbol (3.92).(33.42.5.93.10), and exhibits `turn-off' luminescence responses for the Cu2+ and Fe3+ ions in aqueous solution based on significantly different quenching mechanisms.
feature articles
This article highlights general and modern synthetic strategies to synthesize metal-organic frameworks (MOFs), and discusses their structural diversity and properties with respect to application perspectives.
research papers
Two new main-group metal–organic frameworks (MOFs) based on the semi-rigid tetracarboxylic acid 5,5′-methylenebis(2,4,6-trimethylisophthalic acid) were prepared under hydrothermal conditions and characterized. The Ba complex reveals a three-dimensional flu network formed via bridging tetranuclear SBUs, while the Pb complex displays a three-dimensional framework with an sqp topology based on one-dimensional metal chains. The luminescence properties of both complexes have been investigated in the solid state.
metal-organic compounds
The title compound, {[Ba2(C13H8N2O6S)2(H2O)6]·C10H8N2}n, possesses a novel two-dimensional porous coordination network, in which each BaII ion is nine-coordinated by three carboxylate O atoms, two sulfonate O atoms and four water molecules in an irregular coordination environment. Hydrogen-bond interactions between coordinated water molecules and sulfonate/hydroxyl groups hold the network layers together and produce a three-dimensional supramolecular architecture.
metal-organic compounds
The title compound, [CrRb(C2O4)2(H2O)2]n, obtained under hydrothermal conditions and investigated structurally at 100 K, is a three-dimensional supramolecular isomer of the layered structure compound studied at room temperature. This novel polymer is built up from crosslinked heterobimetallic units. The linkage of alternating edge- and vertex-shared RbO7(H2O)2 and CrO4(H2O)2 polyhedra running along three different directions gives a dense packing. The two independent ligands display two η4-chelation modes and two conventional carboxylate bridges. However, the pentadentate ligand connects the CrIII and RbI ions through one O-atom bridge, while the hexadentate ligand exhibits an additional η3-chelation and two O-atom bridges. Each coordinated water molecule forms an O-atom bridge between the two metals. Moreover, in the absence of protonated ligands, these water molecules act as donors through their four H atoms in strong-to-weak hydrogen bonds. This results in zigzag chains of alternating oxalate and aqua ligands parallel to the twofold screw axis. The six double oxalates known to date containing an alkali and CrIII all present layered two-dimensional structures. In the series, this supramolecular isomer is the first three-dimensional framework.
