This paper presents the one‐pot reaction synthesis of coordination calcium and strontium compounds [Ca(L)2(H2O)2 1 and Sr(L)2(H2O)2 2] with the 2‐(4‐ chlorophenylamino) benzoic acid ligand (HL = C13H10NO2Cl). The complexes were obtained in good yields, and their structures were corroborated according to their CHN, spectroscopic (IR and UV/Vis.) and solution molar conductivity data as the latter confirmed their molecular nature. Additionally, the powder X‐ray diffraction pattern of the complexes was used to determine the cell parameters and the hkl indices together with their corresponding 2θ values. The microbial resistance against the currently available antifungal agents requires searching for new antifungal compounds. Promising fungicidal activities of these coordination complexes were determined against the Fusarium corn disease as complexes 1 and 2 at 30°C inhibited the grain pathogenicity by 70% and 66%, respectively. Moreover, 1 and 2 retarded the amylase enzymes that are responsible for the pathogenicity by 35.13% and 26.22% at 30°C.

This paper presents the one‐pot reaction synthesis of coordination calcium and strontium compounds [Ca(L)2(H2O)2 1 and Sr(L)2(H2O)2 2] with the 2‐(4‐ chlorophenylamino) benzoic acid ligand (HL = C13H10NO2Cl). The complexes were obtained in good yields, and their structures were corroborated according to their CHN, spectroscopic (IR and UV/Vis.) and solution molar conductivity data as the latter confirmed their molecular nature. Additionally, the powder X‐ray diffraction pattern of the complexes was used to determine the cell parameters and the hkl indices together with their corresponding 2θ values. The microbial resistance against the currently available antifungal agents requires searching for new antifungal compounds. Promising fungicidal activities of these coordination complexes were determined against the Fusarium corn disease as complexes 1 and 2 at 30°C inhibited the grain pathogenicity by 70% and 66%, respectively. Moreover, 1 and 2 retarded the amylase enzymes that are responsible for the pathogenicity by 35.13% and 26.22% at 30°C.

NULL

NULL

3D printing is recognized as a powerful tool to develop complex geometries for a variety of materials including nanocellulose. Herein, a one-pot synthesis of 3D printable hydrogel ink containing zeolitic imidazolate frameworks (ZIF-8) anchored on anionic 2,2,6,6-tetramethylpiperidine-1-oxylradicalmediated oxidized cellulose nanofibers (TOCNF) is presented. The synthesis approach of ZIF-8@TOCNF (CelloZIF8) hybrid inks is simple, fast (≈30 min), environmentally friendly, takes place at room temperature, and allows easy encapsulation of guest molecules such as curcumin. Shear thinning properties of the hybrid hydrogel inks facilitate the 3D printing of porous scaffolds with excellent shape fidelity. The scaffolds show pH controlled curcumin release. The synthesis route offers a general approach for metal–organic frameworks (MOF) processing and is successfully applied to other types of MOFs such as MIL-100 (Fe) and other guest molecules as methylene blue. This study may open new venues for MOFs processing and its large-scale applications.

A Facile Synthesis and Reactions of Some Novel Pyrazole-based Heterocycles. تخليق وتفاعلات بعض مركبات عضوية جديدة مرتكزة على حلقة بيرازول

A Facile Synthesis and Reactions of Some Novel Pyrazole-based Heterocycles. تخليق وتفاعلات بعض مركبات عضوية جديدة مرتكزة على حلقة بيرازول

A Facile Synthesis and Reactions of Some Novel Pyrazole-based Heterocycles. تخليق وتفاعلات بعض مركبات عضوية جديدة مرتكزة على حلقة بيرازول

Synthesis of New Heterocycles from Reactions of 1-Phenyl-1H-pyrazolo[3,4-b]pyridine-5-carbonyl -pyrazolo[3,4-b]pyridine. تخليق مركبات عضوية جديدة غير متجانسة الحلقة من تفاعلات 1-فينيل-1هـ- بيرازولو(3،4-ب)بيرازين- 5- كربونيل أزيد

Hydrogen gas has been considered as one of the promising sources of energy. Thus, several strategies including the hydrolysis of hydrides have been reported for hydrogen production. However, effective catalysts are highly required to improve the hydrogen generation rate. Two dimensional metal-organic frameworks (copper-benzene-1,4-dicarboxylic, CuBDC), and CuBDC-derived CuO@C were synthesized, characterized and applied as catalysts for hydrogen production using the hydrolysis and methanolysis of sodium borohydride (NaBH4). CuBDC, and CuO@C display hydrogen generation rate of 7620, and 7240 mlH2·gcat−1· min−1, respectively for hydrolysis. While, CuBDC offers hydrogen generation rate of 9060 mlH2·gcat−1· min−1 for methanolysis. Both catalysts required short reaction time, and showed good recyclability. The materials may open new venues for efficient catalyst for energy-based applications.