N，N，N’，N’-四[（二苯基膦）亚甲基]-对苯二胺的合成及其晶体结构

有机膦化合物具有的广泛用途,如在农业上可作为杀虫剂、杀菌剂、除草剂[1],在工业上作为抗氧剂、助燃剂、粘接剂、缓蚀剂等[2],使得有机膦化学飞速发展,有机膦化合物的应用日益丰富[3,4].     

Synthesis, Crystal Structure, Thermal Stability and Luminescent Properties of a New 2D Zinc Complex

A new coordination polymer associated with zinc ion,[Zn(Tda)(bpp)] n (1,H 2 tda=thiophene-2,5-dicarboxylic acid,bpp=1,3-bis(4-pyridyl)propane),was prepared under solvothermal conditions,and characterized by single-crystal X-ray diffraction,elemental analysis and IR spectra.The complex belongs to monoclinic,space group P2 1 /c with a=9.8799(4),b=12.0430(6),c=15.4269(9),β=95.424(5) o,V=1827.33(16) 3,Z=4,D c=1.577 g/cm 3,S=1.074,μ=1.486 mm-1,F(000)=888,M r=433.80,R=0.0359 and wR=0.0968 for 2685 observed reflections (I > 2σ(Ⅰ)).Complex 1 displays an interesting 2D lattice structure.In 1,four coordinated zinc ions were bridged by Tda and bpp ligands to generate a (4,4) two-dimensional layer.The thermogravimetric analysis,powder X-ray diffraction (XRD) and luminescent properties for 1 also have been explored.     

3,5-二(吡啶甲氧基)苯甲酸的合成

以3,5-二羟基苯甲酸和氯甲基吡啶为原料合成了3个新型不对称三脚架配体--3,5-二(吡啶甲氧基)苯甲酸,其结构经1H NMR, 13C NMR, IR, ESI-MS和元素分析表征.     

Crystal Structure and Luminescent Properties of a Zn(Ⅱ) Coordination Polymer Assembled by Mixed-ligand

A Zn(Ⅱ) coordination polymer [Zn(NIP)(3,3'-bpt)]·H2O(1, NIP = 5-nitroisophthalate, 3,3'-bpt = 1H-3,5-bis(3-pyridyl)-1,2,4-triazolate) has been synthesized by the hydrothermal reaction at 140 ℃ and structurally characterized by IR spectroscopy, X-ray diffraction, thermal analysis, single-crystal X-ray diffraction and luminescent properties. In complex 1, the zinc atom is five-coordinated with three carboxylate oxygen atoms from three H2 NIP and two nitrogen atoms from two 3,3'-bpt, respectively, forming a distorted trigonal bipyramidal geometry and showing a 1D chain structure, which is further bridged by NIP to form a 3D supramolecular network via self-assembly of hydrogen bonds.     

3,5-二(吡啶-甲氧基)苯甲酸吡啶-甲基酯的合成

具有三脚架构型的多吡啶类化合物,因其具有众多的配位原子以及较为特殊的分子构型,在与金属离子配位的过程中,一方面可以通过吡啶氮的配位键、氢键、芳香环的π-π作用等方式构筑出结构新颖的配合物[1-4];另一方面因其具有三脚架的构型,其三条侧链可自由翻转形成大小合适的空腔,能够与不同的客体分子或离子结合,有可能筛选出在分子识别、分子交换、电子传递和选择性催化等方面具有特殊性能的功能材料[5-8].因此,合成具有三脚架构型的多吡啶类配体是这些配合物在诸多领域中应用的关键.