ChemInform Abstract: Gd2O3:Eu Phosphor Particles Prepared from the Polymeric Precursors in Spray Pyrolysis.

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ChemInform Abstract: La3BaSi5N9O2:Ce3+ — A Yellow Phosphor with an Unprecedented Tetrahedra Network Structure Investigated by Combination of Electron Microscopy and Synchrotron X‐Ray Diffraction.

Agglomerates of a few μm of the yellow phosphor La₃BaSi₅N₉O₂:Ce³⁺ are obtained by heating a mixture of LaF₃, La(NH₂)₃, BaH₂, Si(NH)₂, and CeF₃ in a radio frequency furnace under N₂ (1600 °C, 10 h; cooling to 900 °C within 44 h).     

Synthesis of Heterocycle Compounds Containing Two Pyridazinone Units

Four novel compounds containing two pyridazinone units attached to one benzene or pyridine ring, protected and deprotected 1,5-di[3（2H）-pyridazinon-6-yl]benzene and 2,6-di[3（2H）-pyridazinon-6-yl]pyridine were synthesized in eight steps, which provided a useful method for the preparation of pyridazinone derivatives via the Stetter and cyclization reactions. Their structures were characterized by ^1H NMR, ^13C NMR, and HRMS.     

由杂多酸衍生物制备溶致液晶

液晶是介于液态和晶态之间的一个独立的物质状态,溶致液晶是因溶质在一定浓度范围内分散在溶剂中而呈液晶相．自从１８８８年奥地利植物学家Ｒｅｉｎｉｔｉｚｅｒ和德国物理学家Ｌｅｈｍａｎｎ合作首次发现液晶态以来［１］,迄今为止己发现了五万种以上的液晶性物质．它...     

Synthesis and Quantum-chemical Study of Liquid-crystal Derivatives of Thiazole

New liquid-crystall derivatives of thiazole with smectic mesomorphism over the range 5-85°C have been synthesized. Data on the spatial structure of the compounds synthesized have been obtained by quantum-chemical calculations. The effect of geometric anisotropy of the molecules of substituted thiazoles on their mesomorphic properties has been investigated.     

纤维素及其衍生物液晶研究近况

就纤维素及其衍生物溶性液晶和热致性液晶的液晶性及其影响因素,和流变性能等方面的研究作了较为详尽的综述。