A new metal-organic framework (MOF), [Eu2(HBDPP)2(H2O)2(DMF)2](H2O)2 (H4BDPP = 3,5-bis(3,5-dicarboxylphenyl) pyridine; DMF = N,N-dimethylformamide) (Eu-MOF), has been successfully synthesized under solvothermal condition. The 1D chain is formed by the adjacent Eu2(COO)24+...

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A novel metal-organic framework, [Zn 2 (HCOO)(trz) 3 ] n (1), has been successfully synthesized under solvothermal conditions. The central Zn II ions exhibit two different coordination environments: [ZnN 3 O] and [ZnN 6 ], in which the coordination N and O atoms are from Htrz and formic acid molecules. To effectively improve the proton conductivity of 1, imidazole molecules are introduced into 1 to obtain 2HIm@1 (named as 2). Moreover, composite membranes of 2-PVA-X (X = 5, 10, 15, 20wt.-%) are prepared. Alternating current (AC) impedance measurements reveal that 1 displays proton conductivity Eur. 795The proton conductivity of the composite membranes were tested in the humidity of 65 %, 75 %, 86 %, 93 % and 98 % RH

Intense organic neodymium (Nd3+) emission is obtained with near-infrared (NIR) emission equivalent in intensity to that of an organic semiconductor emitting material. The advantage of Nd3+ emission is its narrow line width and NIR emission, which is enhanced by ∼3000 times at low excitation power through an efficient sensitization effect from a composite organic sensitizer. This performance is optimized at high concentrations of Nd3+ ions, and the organic perfluorinated system provides the ion excitations with a quantum efficiency of ∼40%. The material system is applicable to thin films that are compatible with integrated optics applications.

The {[Zn(H2PIPZ)](H2O)}n (compound 1) detects Co2+ ions with turn on fluorescent and proton conductivity of composite membrane 1@PVA10 is ten times higher than compound 1 at 98% RH and 353 K.

devices to work under tough conditions. There are reports about artificial ATP synthesis and biomimetic power generation through proton gradients. [3] These abiotic ones have potential applications for electronic devices, fuel cell, and chemical sensors. [4] However, significant challenges remain for developing high performance and dynamic regulation of proton conduction. A class of material that is possibly able to improve the proton conduction performance in fuel cells is metal-organic frameworks (MOFs). [5] MOFs are organicinorganic composite porous materials, constructed from metal ions or clusters, and organic ligands through coordination bonds. [6] MOFs have such advantages as high porosity, large specific surface area, and enormous chemical variety. [7]

Antibiotic tolerance and resistance in bacteria have caused a great threaten to the humankind. Bacteria can rapidly accumulate alarmone nucleotides (guanosine tetra-, and pentaphosphate, usually denoted as (p)ppGpp) to repair...

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