Synthesis, structure and spectroscopic studies of europium complex with S(+)-mandelic acid

来源 :Journal of Rare Earths | 被引量 : 0次 | 上传用户:evanchou8
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The Eu3+ complexes with S(+) -mandelic acid were synthesized in the form of powders by mixing aqueous solutions of EuCl3,S(+) -mandelic acid and NaOH in different molar ratios.The powders were characterized by elemental analysis,X-ray powder diffraction(XRPD) method,Fourier transform infrared(FTIR) and Raman spectroscopy,UV-vis reflectance and luminescence spectra as well as lumi-nescence lifetime measurements.It was found that all studied powders of Eu3+ complexes with S(+) -mandelic acid were isostructural and crystalline and formed compounds with the formula Eu(Man) 3(H2O) 2. The Eu3 + complexes with S (+) - mandelic acid were synthesized in the form of powders by mixing aqueous solutions of EuCl3, S (+) - mandelic acid and NaOH in different molar ratios. Powders were characterized by elemental analysis, X-ray powder diffraction (XRPD) method, Fourier transform infrared (FTIR) and Raman spectroscopy, UV-vis reflectance and luminescence spectra as well as lumi nescence lifetime measurements. It was found that all studied powders of Eu3 + complexes with S (+) - mandelic acid were isostructural and crystalline and formed compounds with the formula Eu (Man) 3 (H2O) 2.
其他文献
目的:对异位妊娠进行研究分析。方法通过对患者的临床诊断和表现来进行探讨分析。结论一般症状明显,具有典型性的宫外孕,其诊断不会太难,可是因为某些病例存在一些不典型症状,以至
小学语文阅读教学是学生、教师与文本三者相互沟通、平等对话的过程,是培养和发展学生对语言文字的理解能力和表达能力的重要手段。如何提高阅读教学的效率?本文通过多年来小学
煤矿的安全思想教育工作,是任何一项机制所无法替代的,要通过不断创新和探索,安全教育方式方法从枯乏的批评、单一的说教、硬性的制约,改进到人本安全教育亲情化上。通过父母亲、
The magnetization measurements of gallium nitride nanoceramics doped with 1% of cerium and sintered under various pressures were reported.It was found that GaN
我国金属与非金属矿山安全标准化实施的原因与发展趋势,针对安全标准化主要内容,对安全标准化实施过程中存在的问题,提出了相应的对策。并且构建动态的、实时性的考评信息网络化
Compositional-dependent heavy metal lead borate glasses doped with Tb3+ ior were investigated.Green luminescence related to main 5D4→7F5 (543 nm) transition wa
腐蚀是材料和周围环境发生化学或电化学反应而引起的一种消损破坏,自然环境会造成材料的腐蚀。近年发生的一系列自然灾害和安全事故,都实实在在地证明了腐蚀和腐蚀隐患是这些事
The absorption and emission spectra as well as decay time profile of Dy3+ ions in LaAlO3 nanocrystals were analyzed.The crystal structure of LaAlO3 was confirme
Core/shell structured CePO4:Tb(Ⅲ)@LaPO4 and CePO4:Tb(Ⅲ) were successfully synthesized in tris(2-ethylhexyl) phosphate (TEHP) and diethylene glycol (DEG) solve
Nanowires/nanorods of europium/terbium orthophosphate monohydrate with Eu3+ concentration of 6,11,and 20 at.% were prepared by microwave synthesis method.The eff