Tb(p-ABA)2(acac)phen-TDI-MDA共聚物合成及其性质

以对氨基苯甲酸、β-二酮和邻菲哆啉为配体合成了一种高荧光强度、高缩聚活性的铽配合物单体，并将铽配合物单体与TDI，MDA进行共缩聚，合成了含稀土配合物的聚脲共聚物。通过元素分析、摩尔电导、红外光谱、X射线光电子能谱和荧光光谱对配合物和共聚物的结构和性质进行了表征。结果表明：配合物具有高的荧光强度，在DMF中配合物为非电解质，铽配合物参与了共缩聚反应，共聚物的发射光谱与配合物相似，荧光强度随铽配合物含量增加而增强。采用高浓度的酸碱对键合型聚脲共聚物和直接掺杂型稀土配合物／聚脲进行长时间浸泡，结果表明键合型聚脲共聚物比直接掺杂型稀土配合物／聚脲具有更好的荧光稳定性。     

β-吲哚乙酸-邻菲啰啉-铽(Ⅲ)配合物荧光性质研究

为了提高β-吲哚乙酸(IA)-铽二元固态配合物的荧光性能,在乙醇水溶液体系中,以邻菲啰啉(phen)作为第二配体,合成了铽与IA、phen三元固态配合物.通过元素分析、红外光谱及荧光光谱分析,确定了配合物的组成及其成键特征,研究了其荧光性能.三元配合物组成为Tb(IA)3·phen.三元配合物的荧光强度是二元配合物的近10倍.     

铽-环丙沙星纳米稀土配合物合成、表征及发光性质研究

制备了纳米铽-环丙沙星-邻菲啰啉稀土配合物,通过元素分析、热重差热分析、X射线衍射(XRD)、红外光谱、紫外光谱对配合物的组成、结构进行了表征,研究了配合物溶解性、热稳定性、发光性能和邻菲啰啉第二配体加入对铽-环丙沙星体系荧光性质的影响。荧光光谱的研究表明,环丙沙星通过分子内能量传递将部分能量传递给铽离子,同时邻菲啰啉的加入能有效地增强铽离子发光强度,配合物具有良好的发光性能,在紫外光激发下显示出Tb3+的特征发射峰,发出很强的绿色荧光。     

La(Ⅲ)、Gd(Ⅲ)、Yb(Ⅲ)与邻香草醛缩邻氨基苯甲酸配合物的合成和表征

合成了稀土硝酸盐与希夫碱邻香草醛缩邻氨基苯甲酸的三种新固体配合物。通过元素分析、红外光谱、紫外光谱、差热热重及摩尔电导分析，确定配合物的组成为［Ｌｎ（ＨＬ）（ＮＯ３）（Ｈ２Ｏ）］·ＮＯ３（Ｌｎ＝Ｌａ，Ｇｄ，Ｙｂ），并对它们的某些性质进行了研究。     

铕-柠檬酸-1,10菲咯啉三元配合物的合成及荧光性质的研究

合成了铕的柠檬酸、1,10菲咯啉三元配合物 ,并用红外光谱、差热分析、热重分析和荧光光谱等手段研究了配合物的组成、结构及发光性质。结果表明第二配体的加入能有效提高能量传递效率 ,对铕的发光有增强作用     

缩聚活性铕配合物的合成与表征

采用一种新方法制备无水稀土配合物,其中一步法直接合成三氯化铕的绝对无水乙醇溶液。在稀土配合物中引入带胺基的功能配体,使其与三氯化铕反应合成了两种两端含有胺基具有缩聚活性的配合物。以元素分析、红外光谱和紫外光谱对配合物的组成和结构进行表征,并以摩尔电导和荧光光谱对配合物的性质进行研究,结果表明,在DM F中配合物可作为聚合单体应用;粉末状态下,配合物具有高的荧光强度,荧光单色性好。     

β-二酮(HFPP)、邻菲罗啉分别与铕和铽三元配合物的合成及发光性能研究

1-(2-呋喃基)-3-(p-苯乙炔基苯基)-1,3-丙二酮(HFPP)、邻菲罗啉(Phen)分别与Eu(Ⅲ)和Tb(Ⅲ)反应, 合成两个新的三元稀土配合物:Eu(FPP)3Phen和Tb(FPP)3Phen,通过红外光谱、化学分析、元素分析对三元稀土配合物的组成和结构进行了表征.研究了配合物的荧光性质,并通过量子化学计算对实验结果进行了解释.     

铈(Ⅲ、Ⅳ)与3-醛基水杨酸缩氨基硫脲配合物的合成、表征及抑菌活性研究

本文制备了３－醛基水杨酸缩氨基硫脲铈（Ⅲ、Ⅳ）的配合物，通过元素分析、电导、红外、紫外和热谱等手段对配体和配合物的组成和性质进行了确定和表征，两种配合物的组成分别为ＣｅＡｃ１．５Ｌ１．５·４Ｈ２Ｏ和ＣｅＬ４·６Ｈ２Ｏ，同时测试了配体和配合物的抑菌活性。     

二茂铁基β-二酮、丙烯酸、铕,三元稀土配合物的合成及荧光性能研究

通过乙酰基二茂铁分别与苯甲酸乙酯、对甲基苯甲酸乙酯的克莱森缩合反应,合成两种二茂铁基β-二酮化合物,并与丙烯酸、铕(Ⅲ)合成两种三元稀土配合物,采用元素分析、红外光谱、核磁共振氢谱等表征手段,对新化合物的组成和结构进行了测定;用荧光分光光度法对三元稀土配合物的荧光性质进行了研究,发现铕三元稀土配合物发生了荧光猝灭,分析了荧光猝灭的原因.     

La(Ⅲ)、Nd(Ⅲ)、Tb(Ⅲ)、Er(Ⅲ)与二溴水杨醛缩乙二胺配合物的合成与表征及薄层色谱研究

合成了四种稀土双核配合物,其组成为Ｌｎ２Ｌ３（ＮＯ３）６·３Ｈ２Ｏ〔Ｌｎ＝Ｌａ（Ⅲ）、Ｎｄ（Ⅲ）、Ｔｂ（Ⅲ）、Ｅｒ（Ⅲ）;Ｌ＝３,５－二溴水杨醛缩乙二胺〕,并通过元素分析、红外光谱、紫外光谱、差热－热重及摩尔电导分析等手段,对合成的配合物进行了表征,并研究了配合物的薄层色谱行为     

Synthesis and fluorescence properties of Eu（Ⅲ）, Tb（Ⅲ） and Sm（Ⅲ） with β-diketone and 2,2＇- bipyridine

Three new rare earth ternary complexes,RE(PPP)3bpy(RE=Sm 3+ ,Eu 3+ ,Tb 3+ ),were synthesized by the reaction of 1-phenyl-3-(p-phenylethynylphenyl)-1,3-propanedione(HPPP)and 2,2′-bipyridine(bpy)with rare earth chloride RECl3,respectively,in alcohol solution. The compositions were characterized by means of infrared(IR)spectra,chemical analysis,elemental analysis,and thermodynamic analysis.Luminescent properties of the three complexes were studied.At room temperature,under UV light excitation,the Sm 3+ ,Eu 3+ and Tb 3+ complexes exhibited characteristic emission of the central ions.The fluorescence spectra showed that the fluorescence emission intensity of Eu 3+ complex was the strongest.The narrow strongest emission band of Eu 3+ complex was considered to be a valuable material with bright red fluorescence.     

Ti—6242S合金在β区的锻造工艺研究

采用光学显微镜、扫描电和力学性能测试等设备了Ｔｉ－６２４２Ｓ合金相变点以上４５℃加热,变形量为７０％空冷的锻造工艺,经双重退火处理,获得细小网篮状组织。这种组织为α＋β两相区锻造下的等轴组织相比,不但具有良好的室温和高温力学性能,而且还提高了材料的高温持久、蠕变强度、冲击和断裂韧性,该合金的β区锻造工艺,放于加工航空发动机压气机盘模锻件。     

Highly luminescent europium and terbium complexes based on succinimide and N-hydroxysuccinimide

The preparation of two highly luminescent europium(III) and terbium(III) complexes with succinimide(SI) and N-hydroxysuccinimide(NHSI) were reported,which were further investigated through elemental chemical analysis,thermal analysis,FT-IR,powder X-ray diffraction,SEM and fluorescence spectroscopy.Data collected through these analysis revealed the formation of the Eu(III) and Tb(III) complexes with the above mentioned ligands at a metal to ligand(M:L) molar ratio of 1:3.Interesting conclusions regarding the efficient sensitization through the coordination site of the lanthanide luminescent centers were retained from the photoluminescent spectra investigation.Strong luminescence emission was observed in case of Eu(III)-SI and Tb(III)-NHSI complexes while the corresponding Eu(III)-NHSI and Tb(III)-SI complexes exhibited no photo luminescent properties.Newly obtained luminescent lanthanide complexes may be of particular interest for various applications in optoelectronics.     

Synthesis and Photoluminescence Properties of Rare Earth Complexes with 3-Allyl-2, 4-Pentanedione

In order to combine the merits of rare earth organic complexes with excellent material performances of polymers,a polymerizable chelating agent, 3-allyl-2, 4-pentane dione (APD), was synthesized by phase transfer catalysis and its rare earth complexes were prepared. The compounds were characterized by EA, IR and ^1H NMR. Their UV spectra and fluorescence spectra were investigated. The effects of allyl on the luminescence properties of the complexes were studied.The results show that the sensitization of APD is changed by allyl in comparison with that of acetyl acetone (acac), and it becomes an ideal novel ligand of Eu. In addition, intramolecular energy transfer mechanism in the luminescence process in the complexes was also discussed in detail.     

Synthesis and Characterization of Rare Earth Complexes of Ferrocenylcarbonylhydrazine

Ｔｈｅｍｅｔａｌｃｏｍｐｌｅｘｅｓｏｆｈｙｄｒａｚｉｄｅｓｈａｖｅａｔｔｒａｃｔｅｄｃｏｎｓｉｄｅｒａｂｌｅｉｎｔｅｒｅｓｔｏｗｉｎｇｔｏｔｈｅｉｒａｎｔｉｆｕｎｇａｌａｎｄａｎｔｉｂａｃｔｅｒｉａｌａｃｔｉｖｉｔｉｅｓ[1 ,2 ] .Ｔｈｅｙｃａｎａｌｓｏｂｅｕｓｅｄａｓａｎａｌｙｔｉｃａｌｒｅａｇｅｎｔｓ[3 ]ａｎｄｅｘｔｒａｃｔｉｎｇａｇｅｎｔｓｆｏｒｍｅｔａｌｓａｌｔｓ[4 ] .Ｍａｎｙｃｏｍｐｌｅｘｅｓｏｆｈｙｄｒａｚｉｄｅｓｈａｖｅｂｅｅｎｓｙｎｔｈｅｓｉｚｅｄａｎｄｃｈａｒａｃｔｅｒｉｚｅｄ[5]…     

Synthesis and spectroscopic properties of rare earth picrate complexes with a new dinaphthalenelamide

The new ligand N-benzyl-2-{2’-[(benzyl-ethyl-carbamoyl)-methoxy]-dinaphthalene-2-yloxy}-N-ethyl-acetamide(L) and its complexes of rare earth picrates were synthesized.The complexes were characterized by elemental analysis,IR,UV-vis spectra and conductivity measurements.The fluorescence properties of the europium complex in solid state and CHCl3,ethyl acetone,acetonitrile and DMF were investigated.Under the excitation,the europium complex exhibited characteristic emissions of europium.The lowest triplet state energy level of the ligand indicated that the triplet state energy level of the ligand matched better to the resonance level of Eu(Ⅲ) than Tb(Ⅲ) ion.     

稀土配合物[REL3(4-picNO)H2O]的合成与表征

合成了2,3-二氯异丁酸根和4-甲基吡啶氮氧化物稀土三元配合物(RE=La、Ce、Pr、Nd、Sm、Eu).通过元素分析、红外、紫外、荧光、X射线粉末衍射、XPS、热分析以及摩尔电导等分析手段,确定了配合物的组成为[REL3(4-picNO)H2O](L= CH3C2H2Cl2COO -),并对它们的性质进行了讨论.     

SiO2凝胶玻璃中铕(铽)-邻甲基苯甲酸-邻菲罗啉配合物的热稳定性及发光性能

用溶胶 -凝胶法以掺杂方式制备了含有铕 (铽 ) -邻甲基苯甲酸 -邻菲罗啉配合物的 Si O2 凝胶玻璃复合发光体 ,研究了该复合发光体的荧光和热稳定性。与配合物固体粉末相比较 ,结果表明将配合物引入凝胶玻璃中 ,其热稳定性明显提高 ,而其特征荧光基本保持不变     

Synthesis and spectroscopic properties of rare earth picrate complexes with a new dinaphthalenelamide

The new ligand N-benzyl-2-{2'-[(benzyl-ethyl-carbamoyl)-methoxy]-dinaphthalene-2-yloxy}-N-ethyl-acetamide (L) and its complexes of rare earth picrates were synthesized. The complexes were characterized by elemental analysis, IR, UV-vis spectra and conductivity measurements. The fluorescence properties of the europium complex in solid state and CHCl₃, ethyl acetone, acetonitrile and DMF were investigated. Under the excitation, the europium complex exhibited characteristic emissions of europium. The lowest triplet state energy level of the ligand indicated that the triplet state energy level of the ligand matched better to the resonance level of Eu(III) than Tb(III) ion.     

铕(Ⅲ)-β-二酮-四甲基四氮〔14〕轮烯三元 配合物的合成与表征

首次合成了三种新的铕（Ⅲ）－β－二酮－四甲基四氮〔１４〕轮烯三元配合物,经过元素分析确定其化学组成分别为ＥｕＴＴＡＬ、ＥｕＢＴＡＬ、ＥｕＡＡＬ（ＴＴＡ＝２－噻吩甲酰三氟丙酮一价阴离子;ＢＴＡ＝苯甲酰三氟丙酮一价阴离子;ＡＡ＝乙酰丙酮一价阴离子;Ｌ＝四甲基四氮〔１４〕轮烯二价阴离子）,用ＩＲ、ＵＶ、荧光光谱对配合物进行了表征