Coordination Polymers: Infinite Systems

A Thermally and Hydrolytically Stable Microporous Framework Exhibiting Single‐Chain Magnetism: Structure and Properties of [Co2(H0.67bdt)3]⋅20 H2O

“…The most common organic tethers are multitopic carboxylate and pyridine ligands. [9][10][11] Other ligand types, however, may be exploited to afford variable tether lengths, different chargebalance requirements, and juxtapositions of donor groups. The polyazaheteroaromatic ligands of the imidazole, pyrazole, triazole, and tetrazole types are quite attractive in view of their extensively documented ability to bridge metal ions to afford polynuclear compounds, their superexchange capacities reflected in unusual magnetic properties, and the facility of derivatization to provide additional functionality.…”

New Metal‐Organic Frameworks with Large Cavities: Selective Sorption and Desorption of Solvent Molecules

“…(4): In order to further investigate the influence of reaction conditions on the structure of the complexes, solvothermal method was used for the reactions of TPBA-2 ligand with perchlorate salts in the presence of thiocyanate anions, respectively. Inspiringly, MOFs 4 and 5 with different structures were successfully isolated and they will be discussed below.…”

“…[14] The coordination environment around the Cu I was shown in Figure 6a. It can be clearly seen that the TPBA-2 ligand did not participate in the coordination with the metal atoms and all the Cu I atoms are four-coordinated with two N atoms from two thiocyanate anions and two S atoms from another two thiocyanate anions, in which the CuÀN bond lengths are 1.960(4) and 1.970 (4) , and the CuÀS bond lengths are 2.2991(12) to 2.4440 (14) (Table S1, Supporting Information), respectively. The N-Cu-S, N-Cu-N and S-Cu-S coordination angles vary from 100.94(5) to 116.48 (13) coordination geometry with a N 2 S 2 donor set.…”

“…Many research groups have devoted their efforts on the development, design, and synthesis of novel metal-organic frameworks (MOFs) and significant results have been achieved concerning on gas storage and hostguest chemistry. [4] For example, Rebek and his colleagues recently reported the hydrogen-bonded dimeric capsules by using spacers with different length, which increased the cavities volume and length, [5a] and they found that the hydrogen bonds and curved surfaces should be able to favor the encapsulation. [5] In addition, magnificent architectures, socalled "encapsulation complexes", were designed and constructed by using three-connecting organic ligands and the encapsulated guests may have special chemical and physical properties, which are different from those in bulk phases, due to the constrained environments of the hollow structures.…”

Multifunctional Aromatic Carboxylic Acids as Versatile Building Blocks for Hydrothermal Design of Coordination Polymers

“…Hydrothermal synthesis is commonly applied toward the design of metal-organic networks [39][40][41] and refers to the synthesis and crystallization of coordination compounds that occur under hydrothermal conditions, typically in a hermetically sealed aqueous solution at elevated temperatures and pressures. The hydrothermal synthesis features a number of important advantages over other common methods for preparing CPs, namely: (i) high reactivity of reactants and unique synthetic conditions in terms of a combination of pressures and temperatures; (ii) growth of good quality single crystals (Figure 1) or microcrystalline phases with no need for additional work-up and purification; (iii) possible control of solution or interface reactions, formation of metastable and unique structures that cannot be generated by other methods; (iv) use of water as a green organic-solvent-free reaction medium that can also aid crystallization by supplying labile H 2 O ligands to complete coordination environment of metal nodes; and (v) relative simplicity of the equipment.…”