Synthesis,Crystal Structure and Luminescent Property of Cadmium Complex Based on 2-（2-（1Hbenzo[d]imidazol-2-yl）benzyl）-1H-benzo[d]-imidazole

The complex [Cd(bbb)Cl2]·DMF·H2O, where bbb is 2-(2-(1H-benzo[d]imidazol-2-yl)benzyl)-1H-benzo[d]imidazole, was synthesized and characterized by X-ray single-crystal structure analyses. For the complex: C24H25Cl2CdN5O2, Mr = 598.77, crystal system, triclinic, space group P1, a = 9.9878(12), b = 10.0008(12), c = 13.2217(15) , α = 80.674(2), β = 72.158(2), γ = 86.776(2)°, V = 1240.5(3) 3, Z = 2, Dc = 1.598 g/cm3, λ = 0.71073, μ(MoKα) = 1.127 mm–1, F(000) = 600, S = 1.04, R = 0.0905 and wR = 0.3088 for 4805 observed reflections with I 2σ(I). It is a neutral complex. The distorted tetrahedral geometry of cadmium ion is coordinated by two nitrogen atoms of ligand and two chloride ions. The complex emits blue green luminescence with emission peaks at 480 nm in DMF solution.     

Zn(Ⅱ)与氯苯基苯并咪唑配合物的合成、表征和晶体结构

带咪唑、苯并咪唑等配位基团的过渡金属配合物是一类很重要的物质[1～ 9] 。本文探讨它与Ｚｎ(Ⅱ )的配位性质及配合物的晶体结构。1　实验部分1 .1　标题配合物的合成及表征将 92ｍｇ 2 (0 氯苯基 )苯并咪唑和 40ｍｇＺｎＣｌ2(ＡＲ)分别溶于无水乙醇(ＡＲ)后混合均匀 ,于室温下静置 3 0天 ,析出长方体形无色晶状物 ,产率为 47%。采用Ｐｅｒｋｉｎ Ｅｌｍｅｒ 2 4 0Ｃ元素分析仪测定配合物中Ｃ、Ｈ、Ｎ含量。用ＤＤＳ 1 1Ｃ数显电导率仪 ,以ＤＭＦ为溶剂测定配合物的摩尔电导。采用Ｎｉｃｏｌｅｔ5ＤＸ Ｂ傅立叶变换红外光谱仪 ,ＫＢｒ压…     

N,N''''-双(4-甲基-2-苯并噻唑基)-2,6-吡啶二酰胺钴(Ⅱ) 配合物的合成和晶体结构

0IntroductionCobaltcomplexeswithnonmacrocyclicchelatingligandscontainingtheamidefunctionalityhavere鄄ceivedmuchattentioninpastyears[1~3].Somestudieshaverevealedthatdeprotonatednitrogensoforganicamides,beinganionicinnature,arecapableofstabi鄄lizingthetriva…     

相转移催化合成对甲氧基肉桂酸-2-乙基己酯的研究

对甲氧基肉桂酸 2 乙基己酯是一种有效的ＵＶＢ防晒剂[1 ,2 ] ,一般采用Ｃｌａｉｓｅｎ Ｓｃｈｍｉｄｔ缩合反应制得[3] ,但由于催化剂ＫＯＨ处于水相 ,对反应物不能充分起到催化作用导致产率较低[4] 。我们利用乙二醇 (ＰＥＧ)为相转移催化剂合成立体专一的反式对甲氧基肉桂酸 2 乙基己酯 ,产率提高到 72 .5 %。合成路线如下 :1　实验部分1 .1　仪器与试剂ＢＩＯ ＲＡＰＦＴ45 0红外光谱仪 ,用液膜法测试 ;Ｂｒｕｒｅｒ ＡＭ 30 0超导核磁共振仪 (溶剂ＤＣ Ｃｌ3) ;ＭＡＴ/44Ｓ ,ＧＣ ＭＳ型色质联用谱仪 ;试剂均为分析纯 ,上海化学试剂…     

4,4'-双 间位联苯基苯双核铕配合物的合成与发光

合成了一个新的双核铕配合物Eu₂(bdb)₃·4H₂O 。元素分析、红外光谱、质谱证实其配位方式是三个配体同时和两个铕离子绞合配位。该配合物发出铕离子特征红光,发射峰值位于614 nm,其激发光谱的激发峰值位于370 nm。配合物的发光寿命为336 μs,寿命曲线很好地和单指数衰减拟合曲线相吻合,进一步证实配合物只有一个对称中心铕离子存在。配合物热稳定性达到230 ℃,满足制备LED器件的要求。将该配合物与370 nm 发射的InGaN芯片组合 成功地制备了红色发光二极管,当配合物和硅树脂的质量比为1 : 30时,红色发光二极管的色坐标为x=0.635 3, y=0.334 0,发光效率为 1.36 lm/W。结果表明:该配合物是制备半导体高显色指数白光LED潜在的红色有机发光材料。     

Synthesis,Crystal Structure and Luminescent Property of a Dinuclear Cadmium Complex Based on 2-(2-(1H-Benzo[d]imidazol-2-yl)-phenyl)-1-phenyl-1H-benzo[d]imidazole

A dinuclear cadmium complex [Cd_2(bppb)Cl_4×2DMF](1), where bppb is 2-(2-(1 Hbenzo[d]imidazol-2-yl)phenyl)-1-phenyl-~1 H-benzo[d]imidazole, was synthesized and characterized by X-ray single-crystal structure analyses. For 1: C_(58) H_(50) Cd_2 Cl_4 N_(10) O_2, M_r = 1285.68, monoclinic system, space group P2_1/n, a = 16.136(3), b = 10.612(2), c = 16.270(3) ?, β = 96.209(2)°, V = 2769.7(9) ?~3, Z = 2, D_c = 1.542 g/cm~3, λ = 0.71073 ?, μ(Mo Kα) = 1.013 mm~(–1), F(000) = 1296, S = 1.055, R = 0.0393 and wR = 0.1185 for 4876 observed reflections with I 2σ(I). One 9 mium ion which is five-coordinated by three chloride ions and two nitrogen atoms from bppb. Two cadmium ions are bridged by two chloride ions. The Cd_2(bppb)_2 Cl_2(μ-Cl_2) decomposes at 350 ℃ which is much lower by 70 ℃ than [Cd_2(bpbb)_2 Cl_2(μ-Cl_2)](420 ℃). The complex emits blue luminescence in both DMF solution and solid powder. Phenyl ring substituting NH hydrogen atom of benzimidazole group in ligand can not obviously change the UV-vis and luminescence spectra peaks location of the benzimidazole cadmium complex.     

2，6-双(1-苯基苯并咪唑-2-)吡啶铱(Ⅲ)配合物的合成、晶体结构和发光性质

苯基取代2,6-双苯并咪唑吡啶的2个NH的氢原子生成了2,6-双(1-苯基苯并咪唑-2-)吡啶配体(bpbp)。180℃加热条件下,IrCl3.6H2O和2,6-双(1苯基苯并咪唑-2-)吡啶合成了1个新的阳离子型配合物[Ir(bpbp)2](PF6)3,它的结构经元素分析、红外光谱、氢核磁共振、X射线单晶衍射证实。[Ir(bpbp)2](PF6)3配合物属于单斜晶系,空间群P2/n,a=1.435 1(5)nm,b=1.094 1(5)nm,c=2.206 9(5)nm,β=99.832(5)°,V=3.414(2)nm3,Z=2。中心金属离子Ir(Ⅲ)和来自2个配体的6个N原子配位,形成八面体几何结构。该配合物在二氯甲烷中发出明亮的黄绿荧光。     

N，N′-双(4-甲基-2-苯并噻唑基)-2，6-吡啶二酰胺钴(Ⅱ)配合物的合成和晶体结构(英)

Treatment of deprotonated N，N′-bis(4-methyl-2-benzothiazolyl)-2, 6-pyridicarboxamide (L^2-) with CoCl2·6H2O yields the mononuclear complex, (Et₄N)₂[CoL₂]·0.5H₂O. Single crystal X-ray structural determination has been carried out for the complex, crystal system: Monoclinic, space group: P2₁/c, a=1.444(1) nm, b=1.969(1) nm, c=2.448(1) nm, β=118.02(1)°, V=6.143 0(15) nm³, Z=4. In this complex, the central Co(Ⅱ) atom is in an octahedron environment, with four deprotonated amide-N atoms in the equatorial plane and two pyridine-N atoms in the axial positions. CCDC: 252558.     

2-(2-苯并咪唑)-6-甲基吡啶锌配合物的合成及发光性质

合成了2-(2-苯并咪唑)-6-甲基吡啶及其锌配合物,通过元素分析、摩尔电导率、红外光谱和紫外光谱对产物进行了表征,并运用荧光光谱对配合物的发光性质进行了研究。结果表明,锌配合物在DMF溶液中的荧光最大发射波长为428nm,在固态下的荧光最大发射波长为448nm,均属于蓝光发射,具有作为蓝色发光材料的潜能。     

蓝光激发的基于1-(7-(叔丁基)-9-乙基-9H-咔唑-2-位)-4,4,4-三氟代-1,3-二氧代丁烷为配体的红色发光铕(III)配合物

合成了一个新的铕(III)配合物EuL3(phen)(L为去质子的1-(7-(叔丁基)-9-乙基-9H-咔唑-2-位)-4,4,4-三氟代-1,3-二氧代丁烷,phen为邻菲啰啉). 用元素分析、红外、核磁、紫外可见吸收光谱、热重分析、光致发光对该铕配合物进行了表征. 热重分析表明配合物的稳定性达到325 oC. 光致发光研究表明：该配合物发出强烈红光,其激发光谱延伸到可见光区域. 该配合物和460 nm发射的InGaN芯片组合得到了一个具有红光的发射的发光二极管. 该铕(III)配合物是蓝光激发的红色发