Post-Synthetic Modification of a 1D Mixed-Linker Zn(II) Coordination Polymer for Acid-Catalyzed Alcoholysis of Epoxides.

Rational design of heterogeneous acid catalysts possessing uniform dispersion of active sites plays a significant role in the catalytic performance. In the present work, a coordination polymer, [Zn(4,4'-bpy)(μ-Hbtc)(HO)] ⋅ 2HO (Zn-CP), was solvothermally synthesized using 4,4'-bpy (=4,4'-bipyridine) and Hbtc (=1,3,5-benzenetricarboxylic acid) mixed linkers. Single crystal X-ray analysis of the polymer displayed that Zn-CP chains were decorated with 4,4'-bpy having unidentate coordination fashion.

Comparison of echocardiographic pulmonary flow Doppler markers in patients with massive or submassive acute pulmonary embolism and control group: A cross-sectional study.

Background And Aims: Computed tomography angiography (CTA) is the gold standard for the diagnosis of massive (MPE) and submassive pulmonary embolism (SMPE). Ultrasound has not been accepted as a diagnostic tool. We aim to evaluate the pattern of pulmonary Doppler echocardiography in patients with pulmonary embolism (PE).

Bovine salpingitis: Histopathology, bacteriology, cytology and transcriptomic approaches and its impact on the oocyte competence.

The present study was performed to examine the histopathology, cytology, bacteriology and expression pattern of a targeted set of genes of cytokines in the oviduct of cows with inflammation (Experiment 1). In addition, the effects of oviductal fluid from cows with salpingitis on the oocyte maturation and fertilization in vitro were examined (Experiment 2). The most frequent bacterial co-infection was Escherichia coli and Fusobacterium necrophorum, which was always associated with severe histopathologic salpingitis.

Photocatalytic Activity of Supported Metal Nanoparticles and Single Atoms.

Photocatalysis has been known as one of the promising technologies due to its eco-friendly nature. However, the potential application of many photocatalysts is limited owing to their large bandgaps and inefficient use of the solar spectrum. One strategy to overcome this problem is to combine the advantages of heteroatom-containing supports with active metal centers to accurately adjust the structural parameters.

Two novel octamolybdate nanoclusters as catalysts for dye degradation by air under room conditions.

Two novel inorganic-organic hybrid materials, namely, (NH4)2CuMo8O26(C10H8N2)2 (1) and Mo8O26(C10H10N2)2(C10H8N2)·2(H2O) (2) have been synthesized based on β-octamolybdate cluster and 4,4'-bipyridine (4,4'-bpy) ligand under solvothermal conditions. Their structures have been determined by single-crystal X-ray diffraction analyses and characterized by FT-IR, atomic absorption spectroscopy, powder X-ray diffraction (PXRD) and thermogravimetric analysis (TGA). In addition, microcrystals of 1 were used to synthesize its nanocrystals via an ultrasound-assisted top-down method.