噻吩甲酰三氟丙酮—酰基吡唑啉酮—邻菲咯啉合铕（Ⅲ）四？…

近年来 ,稀土金属螯合物因其发光色度纯 ,荧光量子效率高 (理论可达 1 0 0 % ) ,在有机电致发光平板显示器研究中得到广泛应用[1～ 3] .用噻吩甲酰三氟丙酮作为配阴离子与稀土离子Ｅｕ3+配位 ,可得到红色电致发光材料[4～ 6] .为提高这类配合物的电致发光强度和发光效率 ,增强配体与稀土离子间的敏化作用 ,改善配合物的载流子传输性和成膜性十分重要 .本文利用配阴离子 4 叔丁基苯甲酰基吡唑啉酮 (ＨＰＭＴＢＢＰ)和噻吩甲酰三氟丙酮 (ＨＴＴＡ)和中性配体 1 .1 0 邻菲咯啉 (Ｐｈｅｎ)与铕 (Ⅲ )作用 ,合成了铕 (Ⅲ )四元配合物 [Ｅｕ(ＴＴ…     

噻吩甲酰基吡唑啉酮缩乙二胺配合物的合成、表征及生物活性

A new ligand N,N′-bis［(1-phenyl-3-methyl-5-oxo-4-pyrazolinyl)-2-thenoylmethylidyne］ethyl-enediimine (HPMTHP)₂en and its five complexes have been sythesized. These complexes have the general formula ［M(PMTHP)₂en］, where M=Cu(Ⅱ), Ni(Ⅱ)     

酰基吡唑啉酮缩邻苯二胺及其金属配合物的合成、表征与生物活性

合成了新双夫席夫碱试剂N,N′－双[（1－苯基－3－甲基－5－氧－4－吡唑啉基）α－呋喃次甲基]邻苯二亚胺[(HPMαFP)2Pen]及其二价金属的配合物。通过元素分析,IR,NMR,电子光谱、磁化率和摩尔电导等测试,确定配合物的组成为M(HPMαFP)2Pen[M=Cu（Ⅱ）,Ni(Ⅱ）,Co（Ⅱ),Pd(Ⅱ）,Pt（Ⅱ）],其结构为四配位平面正方形。抗菌实验表明配合物具有较强的抗菌生物活性。     

4-酰基-双(1,3-二苯基-5-吡唑啉酮)铽(Ⅲ)配合物的合成及荧光性质

合成了3种4-酰基-双(1,3-二苯基-5-吡唑啉酮),1,5-双(1,3-二苯基-5-吡唑啉酮-4-基)-1,5-戊二酮;1,6-双(1,3-二苯基-5-吡唑啉酮-4-基)-1,6-己二酮和1,10-双(1,3-二苯基-5-吡唑啉酮-4-基)-1,10-癸二酮,通过元素分析、红外光谱和核磁共振氢谱对产物组成进行了表征.合成了它们的Tb(Ⅲ)二元和三元[1,10-二氮杂菲(Phen) 或2,2-联吡啶(Dipy)]配合物,测定了配合物的荧光光谱,对其荧光性质进行了研究.结果表明,配合物发射Tb(Ⅲ)的特征荧光,4-酰基-双(1,3-二苯基-5-吡唑啉酮)配体的三重态能级与Tb(Ⅲ)的最低激发态(5D4)能级匹配较好;配合物荧光强度随4-酰基-双(1,3-二苯基-5-吡唑啉酮)配体2个吡唑环间碳链的增长而减弱;第2配体Phen 和Dipy具有荧光增强作用,且前者优于后者.     

呋喃甲酰基吡唑啉酮双席夫碱配合物的合成及其生物活性

呋喃甲酰基吡唑啉酮双席夫碱配合物的合成及其生物活性李锦州＊于文锦杜晓燕（哈尔滨师范大学化学系哈尔滨１５００８０）（哈尔滨医科大学公共卫生学院哈尔滨）关键词酰基吡唑啉酮，双席夫碱，配合物，合成，生物活性１９９７－０６－１６收稿，１９９７－０９－０９修回...     

酰基吡唑啉酮缩邻苯二胺希土配合物的合成、表征及生物活性

酰基吡唑啉酮缩二胺是近年开发的双席夫碱试剂,对希土离子具有较高的萃取性能,并表现出一定的抗菌、抗病毒生物活性。由于这类试剂含有活性的羟基和亚胺基官能团,适于同各种金属离子配位。最近我们研究了酰基吡唑啉酮缩乙二胺配合物,发现它们具有一定的传递电子作用、光致发光作用和较强的抗菌生物活性。但缩芳香二胺双席夫碱配合物的研究较少,为进一步拓宽酰基吡唑啉酮类配合物的研究领域,本文合成了11种未见报道的希土元素与N,N'-双[1－苯基－3－甲基－5－氧－4－吡唑啉基）α-呋喃次甲基]邻苯二亚胺（（HPMαFP）2Pen)的配合物。研究了配合物的结构,一般性质和抗菌活性。     

酰基吡唑啉酮氨基酸席夫碱配合物的合成、表征与极谱行为

合成了新氨基酸席夫碱试剂1-苯基-3-甲基-4-苯甲酰基吡唑啉酮-5缩β-丙氨酸(HL)及其UO22 ,Cu(Ⅱ),Ni(Ⅱ)和Zn(Ⅱ)配合物.元素分析与摩尔电导值表明,新配合物的组成为[UO2HL2].H2O,[CuHL2].H2O,[NiHL2].2H2O和[ZnHL2].2H2O.运用红外光谱、紫外光谱、核磁共振谱、热谱和磁矩对配合物进行了表征.并考察了铜配合物的极谱行为.结果表明席夫碱以3齿形式配位,配合物中心离子的配位数(除UO22 以外)均为6.     

呋喃甲酰基吡唑啉酮缩邻氯苯胺席夫碱Cu(Ⅱ),Fe(Ⅲ)和Cr(Ⅲ)配合物的合成与表征

合成1-苯基-3-甲基-4(α-呋喃甲酰基)吡唑啉酮-5缩邻氯苯胺新型席夫碱试剂及其铜、铁和铬配合物,元素分析、摩尔电导数据表明配合物的组成分别为:Cu(L)2,Fe(L)3和[Cr(L)2(H2O)2]Cl.通过红外光谱、紫外光谱、差热-热重分析对配合物进行表征.确证了该配合物的结构.     

苯并噻唑基酰基吡唑啉酮的合成

在非水溶剂中合成了4种新型苯并噻唑基酰基吡唑啉酮试剂。用元素分析、IR、1H NMR和LC-MS对其结构进行了表征。结果显示:不同测试条件下,4个化合物存在方式不尽相同,可主要以酮式或酮式和烯醇式异构体共存方式存在。     

噻吩甲酰基吡唑啉酮缩氨基酸稀土配合物的合成、表征及生物活性

A new amino-acid Schiff base, 1-phenyl-3-methyl-4-(2-thenoyl) pyrazolone-5-β-alanine (HL) and its ten rare earth complexes have been synthesized. On the basis of elemental analysis and molar conductance, the general formula of the complexes, [REL₂NO₃]·nH₂O (RE=La, Nd, Eu, Tb, Y, n=2; RE= Pr, Sm, n=1; RE= Dy, Er, Yb, n=3), is given. They were characterized by IR, UV-visible, ¹H NMR, ¹³C NMR and fluorescence. The results show that the rare earth ions exhibit coordination of eight in the complexes.The antibacterial experiments indicate that they have high antibacterial activities against S. Aureus, B. Subtillis, E. Coli, E. Carotovora and C. Flaccumfaciens.     

碱土金属锡酸盐掺铕体系荧光粉合成和荧光性质研究

本文报道了MSnO_3∶Eu~(3+)和M_2SnO_4∶Eu~(3+)(M=Ca,Sr,Ba)体系荧光粉的合成和荧光性质。产品经X射线确证CaSnO_3∶Eu~(3+)和Ca_2SnO_4∶Eu~(3+)为正交晶系,SrSnO_3∶Eu~(3+)和BaSnO_2∶Eu~(3+)为立方晶系,而Sr_2SnO_4∶Eu~(3+)和Ba_2SnO_4∶Eu~(3+)为四方晶系。激发光谱表明,随Ba—Sr—Ca离子半径减小,Eu~(3+)的电荷迁移能量紫移,而Eu~(3+)的f-f跃迁红移。发射光谱表明,CaSnO_3∶Eu~(3+)和Ca_2SnO_4∶Eu~(3+)以电偶极跃迁为主,而其它4种化合物不存在电偶极跃迁。     

Synthesis and characterization of a Eu-containing polymer precursor featuring thenoyltrifluoroacetone and 5-acrylamido-1,10-phenanthroline

A polymerizable ligand, 5-acrylamido-1,10-phenanthroline (L), was synthesized. Its Eu(III) complex with 2-thenoyltrifluoroacetone (HTTA) was prepared and characterized by elemental analysis, IR, MS, and ¹H NMR spectra. The photophysical properties of the complex were studied in detail by using UV, luminescence spectra, luminescence lifetime and quantum yield. The complex shows a remarkable luminescence quantum yield at room temperature (40.1%) upon ligand excitation and a long ⁵D₀ lifetime (590 μs), which makes it not only a promising light-conversion molecular device but also an excellent luminescent polymer precursor.     

Synthesis and photovoltaic properties of new europium complex Eu（DBM）3（CPyBM）

A new europium（Ⅲ） complex, tris（dibertzoylmethanate）{ 1-[9-hexyl-9-carbazole]-2-（2-pyridyl）-bertzimidazole}europium（Ⅲ） [Eu（DBM）a（CPyBM）] was synthesized and used as an electron-acceptor and electron-transport layer in organic photovoltaic （PV） device. Power conversion efficiency achieved from the device was 1.04% under illumination with 365 nm UV light at 1.6 mW/cm^2. Compared with the previous reported devices based on Eu（Ⅲ） complexes, the PV performances were improved. The working mechanism of the organic PV device was discussed.     

Synthesis, structure and luminescence property of the ternary and quaternary europium complexes with furoic acid

A ternany europium complex with furoic acid (α-FURA) and 1,10-phenanthroline(phen), [Eu(α-FURA)₃phen]H₂O(I) and a quaternary europium furoate complex with 1,10-phenanthroline and nitrate, Eu(α-FURA)₂NO₃phen(II) were synthesized and characterized by X-ray diffraction. The two europium ions in each of the complexes (I) and (II) are held together by four carboxylato groups with the two modes, namely bidentate bridging and tridentate bridging, and each europium ion is further bonded to two nitrogen atoms from 1,10-phenanthroline and one chelated bidentate furoate group for the complex (I) and one chelated nitrato group for the complex (II), making a coordination number of 9. Luminescence spectra observed at 77 K show that the europium ion site in the crystals of the complexes (I) and (II) has low symmetry and lifetimes of the solid complexes (I) and (II) are 1.13 and 1.20 ms, respectively.     

Synthesis and characterization of fluorescent Europium (III) complex based on D-dextrose composite for latent fingerprint detection

A europium salt-Na[Eu(5,5′-DMBP)(phen)₃]·Cl₃ (Eu(III)-CPLx) was prepared by using various precursors such as 5,5′-Dimethyl-2,2′-bipyridyl (5,5′-DMBP), 1,10-phenanthroline (phen) and europium chloride hexahydrate (EuCl₃·6H₂O) by a complexation method. The red emission fluorescent Na[Eu(5,5′-DMBP)(phen)₃]·Cl₃/D-Dextrose (Eu(III)-CPLx/D-Dex) composite was synthesized by using an adsorption method with Eu(III)-CPLx and D-Dextrose (D-Dex). The Eu(III)-CPLx and fluorescent (Eu(III)-CPLx/D-Dex) composites were characterized by numerous techniques. The fluorescent (Eu(III)-CPLx/D-Dex) composite demonstrated a strong red emission and controlled fluorescence quenching in the solid state and was consequently used in latent fingerprint (LFP) detection. The LFPs were developed by using a powder dusting method (PDM) with Eu(III)-CPLx and fluorescent Eu(III)-CPLx/D-Dex composites on different substrates under daylight and UV-light irradiation at 365 nm. The fluorescent Eu(III)-CPLx/D-Dex composite was effectively explored for developing LFP images on various substrates and also acts as a better labeling agent for LFP detection in forensic science crime scene investigations.     

Eu(DBM)_3(2,2′-bipy)的晶体结构和荧光光谱

Eu(C_(15)H_(12)O_2)3(C_(10)H_3N_2).分子量M=1103.03.空间群P2_1/c,a=1.3309(4)nm.b=2.2473(5)nm,c=1.6231(1)nm,β=109.68(1)°,V=4.571(2)nm~3,Z=4,D_x=1.43 g·cm~(-3).用5590个可观察衍射点对64个非氢原子坐标和各向异性温度因子进行全矩阵最小二乘法精修。最终的偏离因子R=0.046.中心离子Eu(Ⅲ)由DBM配体的6个氧原子和2,2′-bipy的2个氮原子螫合配位,配位多面体为畸变的四方反棱柱体.利用标题化合物能发生较强荧光的特性,以Eu(Ⅲ)离子为荧光探针,77K下测定了配合物的高分辨激光激发和发射光谱.结果表明,配合物中Eu(Ⅲ)离子仅有一种晶格格位,~5Do→~7F_j(J=0～2)跃迁光谱和晶体结构表明中心离子具有C_1格位对称性。     

Eu3+掺杂纳米羟基磷灰石生物荧光探针的制备、性能与表征

以Ca(NO3)2·4H2O,Eu2O3和(NH4)2HPO4为原料,采用反相微乳液-水热法制备出Eu3+掺杂羟基磷灰石纳米粒子.通过对产物纳米粒子的荧光光谱,TEM、XRD等测试分析,重点考察了Eu3+掺杂量对产物纳米结构和荧光性能的影响,并对荧光性能随其形貌变化的关系等进行了简要讨论.     

异核稀土双亚砜配合物的合成、表征和荧光性质

合成得到一系列异核土双乙烷配合物和异核稀土双乙烷与１,１０－啡咯啉的配合物,通过元素分析,电感耦合等离子体法,电导,红外和紫外光谱对配合进行了表征,并研究了这些配合物的固体和溶液的荧光光谱。