Photo- and Electro-luminescence of the New Ternary Europium（Ⅲ） Complex

A new luminescent europium complex [Eu(DBM)3dpq] (DBM=1,3-diphenyl-1, 3-propanedionate and dpq=dipyrido[2,3-f][2‘,3‘-h]quinoxaline) has been synthesized and shows intense red emission under UV excitation. With the device structure ITO/TPD/Eu(DBM)3dpq:TPD (1:2)/Gd(DBM)3bath/Mg:Ag, sharp-band red emissions with low turn-on voltage of 3V and high brightness of 304cd m^-2 were achieved.     

Crystal Structure of Adduct 2-Phenyl-imidazo [ 4,5-f ] 1,10-phenanthroline Methanol

The structure of the title adduct comprises a phenanthroline derivative 2-phenyl-imidazo[4,5-f]1,10-phenanthroline and a methanol.The composition of the crystalline adduct was characterized as C19H12N4.CH3OH.It belongs to orthorhombic system,space group Pna21 with a=1.3693(4)nm,b=2.2988(7)nm,c=0.51338(15)nm,V=1.6160(8)nm^3.Z=4,and final R1=0.0423.wR2=0.1012 .Crystal structure shows that all the 19 carbon atoms and 4 nitrogen atoms are coplanar.The bond length data indicated that a very extensive conjugation system was formed.This conjugation makes the compound being a potentially excellent energy transformer used for luminescent materials.     

Synthesis and Crystal Structure of a New Complex [CuL（Phen）].NO3

1 INTRODUCTION The functions of transition metals present in the active sites of metalloproteins range from stabilizing the protein structure, affecting the enzymatic activity to controlling the cell metabolism[1]. Copper con- tained metalloproteins are quite widespread, with copper exhibiting various coordination numbers and geometries[2, 3]. Characterization of the model copper complexes mimicking copper-proteins has led to the better understanding of the chemistry of copper in biologic…     

Crystal Structure of Complex Tris(4,4,4-trifluoro-1-phenyl-1,3-butanedione)(1,10-phenanthroline) Europium(III)

IntroductionCertainlanthanideionspossessharpemissionlinesinthevisibleregions.Thepossibilityoftransferringenergyeffi cientlytotheseionsbywayofstronglyabsorbingtransitionscharacteristicoforganicligandshasspurredmanyworkerstoinvestigatelanthanidechelatesaspotentiallasermaterials .Amongthemtheternarycomplexesofeuropium(III)andter bium(III)withtris(β diketonates)andanneutralligandhaveespeciallyattractedmuchattentionfortheirstronglumi nescence.Itmakethemaextensiveapplicationsindevelop mentofnewl…     

新型四元双核铕配合物的合成与晶体结构

在水和乙醇混合体系中,以邻苯二甲酸(H2phth)、邻菲咯啉(phen)与Eu(NO3)3.6H2O反应,首次培养出粉红色单晶[Eu(phth)(Hphth)(phen)(H2O)2]2.用X射线单晶衍射法测定了配合物的晶体结构.晶体结构研究表明配合物为双核结构,每个配位中心Eu原子为九配位,呈畸变的单帽四方反棱柱构型.该配合物通过配位水、邻苯二甲酸与邻菲咯啉之间的氢键作用形成三维的超分子网络.     

Spectral Analysis and Crystal Structure of Tris（benzoyl－trifluoroacetonate）bis（triphenyl－phosphine oxide）Europium（Ⅲ）

ＳｐｅｃｔｒａｌＡｎａｌｙｓｉｓａｎｄＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆＴｒｉｓ（ｂｅｎｚｏｙｌ－ｔｒｉｆｌｕｏｒｏａｃｅｔｏｎａｔｅ）ｂｉｓ（ｔｒｉｐｈｅｎｙｌ－ｐｈｏｓｐｈｉｎｅｏｘｉｄｅ）Ｅｕｒｏｐｉｕｍ（Ⅲ）ＬｅｉＨｅｎｇ－Ｙｉ；ＹａｎｇＹ...     

Synthesis,Crystal Structure,Luminescence and Thermal Stability of a New Coordination Polymer Constructed by Europium(III) and 2,4‐Dichlorophenoxyacetate

A new coordination polymer {[Eu₂(Cl₂C₆H₃OCH₂COO)₆(H₂O)₄]·(DMF)₄·(H₂O)₂}_n with 2,4‐dichlorophenoxy acetic acid as the ligand has been synthesized. The crystal data for this complex are as follows: monoclinic, space group P2(1)/n, a=0.86474(17) nm, b=3.2475(7) nm, c=1.3843(3) nm, β=92.81(3) °, V=3.8827(13) nm³, D_c=1.718 g/cm³, Z=2, µ(Mo Kα)=2.093 mm⁻¹, F(000) =2008, final discrepancy factors R₁=0.0454, wR₂=0.1165. The crystal structure shows that the title complex forms one‐dimensional chain structure by bridging 2,4‐dichlorophenoxy acetic acid anions. Every centric europium(III) ion is coordinated with ten oxygen atoms from five 2,4‐dichlorophenoxy acetic acid anions and two water molecules, giving a ten‐coordinated distorted bicapped square antiprism geometry. The luminescent property and thermal stability of the complex are also studied.     

三元铕配合物Eu(DBM)3L1的合成、晶体结构及发光性能

新型三元铕配合物Eu(DBM)3L1(DBM=二苯甲酰甲烷,L1=2-(3-硝基苯基)-咪唑并[4,5-f]-1,10-邻二氮杂菲)的晶体属单斜晶系,Cc空间群.中心铕离子分别与DBM配体的六个氧原子和第二配体的两个鳌合氮原子配位,形成八配位的扭曲四方反棱柱构型.配合物中性配体的共轭平面与相邻分子的DBM苯环平面(C(25),C(26),C(27),C(28),C(29))之间有明显的π-π相互作用.在紫外光激发下,配合物表现出较强的Eu3+的特征发射,第二配体对中心离子有较强的敏化发光作用.     

1,10-邻菲咯啉-铜(Ⅱ)-L-蛋氨酸配合物的合成、表征及其分子结构

The complex [Cu(L-met)(phen)(H₂O)]NO₃·H₂O has been synthesized and investigated by elemental analysis, molar conductivity, spectroscopic and X-ray diffraction methods, where phen=1,10-phenanthroline and L-met=L-methioninate group. The complex crystallized in the monoclinic space group P2₁ with a=12.053(2)?, b=6.886(1)?, c=13.385(3)?, β=113.59(3)°, V=1018.1(3)?³, Z=2,D_c=1.598g·cm^-3, μ=1.223mm^-1, F(000)=506, R₁=0.0306, and wR₂=0.0742. The copper(Ⅱ) atom is ligated in a distorted square-pyramidal geometry by two nitrogen atoms of one phen and the amino nitrogen atom , one carboxylate oxygen atom of L-met in the base plane, and an aqua at the apical position. A one-dimensional chain configuration formed by the hydrogen-bonding and weak Cu-O (the uncoordinated carboxyl oxygen atom) coordination interactions be-tween neighboring [Cu(L-met)(phen)(H₂O)]⁺ cations. CCDC: 183368.     

Crystal Structure of cis-Dichlorobis-(1,10-phenanthroline) Manganese(Ⅱ)

1INTRODUCTIONRecently,considerableattentionhasbeenpaidtotheinvestigationofcoordinationchemistryofmanganeseindifferentoxidationstatesnotonlybecauseofthediscoveryoftightlyboundmanganeseatomsinvariousbiomolecules[libutalsobecauseoftheirinterestingstructural,magneticandspectroscopicfeatures.Wehavepreparedseveralcomplexesofmanganese(n)withdifferentligands.Thestructuresandfeaturesofthesecompoundsarestudiedsystematically.Inthispaperwedescribethestructureofthecomplexwiththeligandsofphenanthroline…     

Synthesis and Extended 3D Hydrogen-bonded Structure of Complex Tris(violurato-N,O) Cobalt(III) Hexahydrate

1 INTRODUCTION The study of cobalt complexes plays an important role in pharmacology, coordination chemistry and bio- inorganic chemistry. The recent work on organoco- baloximes shows that it has outgrown its initial rele- vance of Vitamin B12 model and acquired an indepen- dent research field because of its rich chemistry[1~4]. At the same time, research on the complexes with oxime ligands has considerable interest owning to their special catalytic, electric, magnetic properties and bio…     

Crystallographic report: Diaquabis(1,10‐phenanthroline)zinc(II) 4,5‐dihydroxy‐1,3‐benzenedisulfonate trihydrate

The zinc atom has a distorted octahedral geometry defined by two 1,10‐phenanthroline and two cis water molecules. A three‐dimensional network structure arises owing to extensive hydrogen bonds involving all the components of [Zn(phen)₂(H₂O)₂][C₆H₂(OH)₂(SO₃)₂]·3H₂O. Copyright © 2005 John Wiley & Sons, Ltd.     

苦味酸二水·二(二氮杂菲)合锌(Ⅱ)的制备及晶体结构

标题配合物由高氯酸锌、1,10-二氮杂菲(phen)和苦味酸(HPA)反应而得。其晶体结构通过单晶X-射线衍射法测定,其晶体属三斜晶系,P 空间群,a = 11.311(2),b = 12.638(4),c = 13.713(4) , = 93.24(3), = 100.32(2) , = 106.50(2) , Z = 2, V = 1837.1(9) 3, Dc = 1.660 g/cm3, (MoK) = 0.763 mm-1, F(000) = 936, R = 0.0512, wR = 0.1152。在配合物中, Zn2+离子被2个水分子的2个氧和2个二氮杂菲中的4个氮配位,形成六配位的畸变八面体。苦味酸根作为外界离子以库仑力和氢键与内界离子结合。