新型吡唑联吡咯类杂环化合物的合成及杀菌活性

为寻找具有更高生物活性、更环保的新农药杀菌剂,基于杀菌剂氟咯菌腈设计并合成了10个新型吡唑联吡咯类杂环化合物,以吡唑环代替氟咯菌腈上原有的苯环,以期提高其杀菌活性.采用1H NMR,FTIR,单晶X射线衍射、元素分析和熔点测定等测试手段对目标化合物及其中间体的结构进行了表征与确认,并通过挥发法培养得到了6个目标化合物的单晶.还对其中6个化合物进行了生物活性测试,测试结果表明各化合物对水稻纹枯病、黄瓜灰霉病、黄瓜霜霉病均表现出一定的抑菌效果,可作为先导化合物对其结构进行深入的研究,为新农药杀菌剂的开发提供了理论支持.     

Synthesis,Structure and Magnetic Property of One Ni~Ⅱ Based Coordination Polymer

One new coordination polymer, [Ni(m-bix)(m-BDC)](1, m-bix = 1,3-bis(imidazol-1-ylmethyl)benzene, m-BDC = 1,3-benzenedicarboxylic acids), has been hydrothermally synthesized and structurally characterized by elemental analysis, IR, TGA and X-ray single-crystal diffraction. The green block crystal of complex 1(C22H18N4Ni O4) belongs to monoclinic system, space group P21/c with a = 10.0418(3), b = 23.8651(6), c = 8.7872(2) A, β = 112.333(3)o, V = 1947.88(9)A3, Z = 4, Dc = 1.572 g/cm3, Mr = 461.11, F(000) = 952, R = 0.0335 and w R = 0.0683 for 2827 observed reflections(I 2σ(I)). Complex 1 exhibits a novel 6-connected 3D sxd type topological framework. The magnetic characterization of complex 1 shows antiferromagnetic coupling exchange.     

A Three-dimensional Zn~(Ⅱ) Based Coordination Polymer with 2-Fold Interpenetrated Topology Displaying Luminescent Property

A new coordination polymer, [Zn2(m-bix)(p-bdc)2](1), was synthesized under hydrothermal conditions by a reaction of 1,3-bis(imidazol-1-ylmethyl)benzene(m-bix), 1,3-benzenedicarboxylic acid(H2p-bdc) and Zn(NO3)2. The colorless block crystals of complex 1(C30H22N4O8Zn2) belong to the triclinic system, space group P1 with a = 10.213(2), b = 12.052(2), c= 12.392(3) A, α = 82.97(3), β = 76.04(3), γ = 78.02(3)o, V = 1443.8(5) A3, Z = 2, Dc = 1.604 g/cm-3,Mr = 697.26, F(000) = 708, R = 0.0403 and w R = 0.0907 for 4886 observed reflections(I 2σ(I)). In1, the tetrahedral ZnI I cations are linked by [p-bdc]2– anions into 2D sq1 networks, which are further connected by bix ligands forming an interesting 2-fold 4,4-connected mog-type 3D network with a point symbol of {4·64·8}2{42·62·82}. Complex 1 was characterized by elemental, IR spectroscopy,powder X-ray diffractions and thermalgravimetric analysis. In addition, complex 1 exhibits coordination induced photoluminescent property.