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991.
Yating Chen Shaonan Zhang Yu Xiao Shuhua Zhang 《Acta Crystallographica. Section C, Structural Chemistry》2020,76(3):236-243
Three novel complexes, namely, penta‐μ‐acetato‐bis(μ2‐2‐{[2‐(6‐chloropyridin‐2‐yl)hydrazinylidene]methyl}‐6‐methoxyphenolato)‐μ‐formato‐tetramanganese(II), [Mn4(C13H11ClN3O2)2(C2H3O2)5.168(CHO2)0.832], 1 , hexa‐μ2‐acetato‐bis(μ2‐2‐{[2‐(6‐bromopyridin‐2‐yl)hydrazinylidene]methyl}‐6‐methoxyphenolato)tetramanganese(II), [Mn4(C13H11BrN3O2)2(C2H3O2)6], 2 , and catena‐poly[[μ2‐acetato‐acetatoaqua(μ2‐2‐{[2‐(6‐chloropyridin‐2‐yl)hydrazinylidene]methyl}‐6‐methoxyphenolato)dimanganese(II)]‐μ2‐acetato], [Mn2(C13H11ClN3O2)(C2H3O2)3(H2O)]n, 3 , have been synthesized using solvothermal methods. Complexes 1 – 3 were characterized by IR spectroscopy, elemental analysis and single‐crystal X‐ray diffraction. Complexes 1 and 2 are tetranuclear manganese clusters, while complex 3 has a one‐dimensional network based on tetranuclear Mn4(L1)2(CH3COO)6(H2O)2 building units (L1 is 2‐{[2‐(6‐chloropyridin‐2‐yl)hydrazinylidene]methyl}‐6‐methoxyphenolate). Magnetic studies reveal that complexes 1 – 3 display dominant antiferromagnetic interactions between MnII ions through μ2‐O bridges. In addition, 1 – 3 also display favourable electrochemiluminescence (ECL) properties. 相似文献
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Microencapsulations of sodium phosphate dodecahydrate with different crosslinked polymer as shells were carried out by in situ polymerization and solvent evaporation method. Methyl methacrylate (MMA), urea were employed to crosslink with ethyl acrylate (EA) and formaldehyde, respectively. The influences of the type of crosslinking agent on the performance of as-prepared microencapsulated phase change materials (microPCMs) have been studied. The microPCMs were investigated using Fourier transformed infrared spectroscopy, scanning electron microscopy, and transmission electron microscope. Thermal properties and thermal stability of microPCMs were characterized by differential scanning calorimetry and thermalgravimetric analysis. Conclusion points out that thermal properties and thermal resistant temperatures of microPCMs vary from the type of crosslinkable functional moieties of the crosslinking agents. The temperature range of melting enlarged and the melting temperature increased according to the prepared microPCMs, which is suitable for thermal energy storage. 相似文献
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Ao Sun Xinye He Xiao Ji Danrong Hu Meng Pan Linghong Zhang Zhiyong Qian 《中国化学快报》2021,32(7):2117-2126
Owing to the special fo rmation of photopolymerized hydrogels,they can effectively control the formation of hydrogels in space and time.Moreover,the photopolymerized hydrogels have mild formation conditions and biocompatibility;therefore,they can be widely used in tissue engineering.With the development and application of manufacturing technology,photopolymerized hydrogels can be widely used in cell encapsulation,scaffold materials,and other tissue engineering fields through more elaborate manufacturing methods.This review covers the types of photoinitiators,manu facturing technologies for photopolymerized hydrogels as well as the materials used,and a summary of the applications of photopolymerized hydrogels in tissue engineering. 相似文献