Synthesis,Crystal Structure and Magnetic Properties of a Cobalt(Ⅱ)Coordination Polymer with4,4'-(Propane-2,2-diyl)dibenzoate and4,4'-Bis(1-imidazolyl)biphenyl

A novel coordination polymer, {[Co（CBA）（BIMB）0.5]＇H20}n （1, H2CBA = 4,4＇- （propane-2,2-diyl）dibenzoic acid, and BIMB = 4,4＇-bis（1-imidazolyl）biphenyl）, has been hydro- thermally prepared and characterized by IR spectroscopy, elemental analysis and single-crystal X-ray diffraction. The crystal is of monoclinic system, space group P2/c with a = 14.909（3）, b = 7.1963（15）, c = 24.592（5） A, β = 104.312（2）, V = 2556.5（9） A3, C26H23N2OsCo, Mr = 502.39, Dc = 1.305 g/cm3, F（000） = 1040,μ = 0.708 mm-1 and Z = 4. The final R= 0.0580 and wR = 0.1605 for 3228 observed reflections （1 〉 2a（I））. Single-crystal structure analysis shows that complex 1 exhibits a three-dimensional 2-fold interpenetrating pillared helical-layer open framework of a-Po topology based upon binuclear paddlewheel units. Moreover, its magnetic properties have also been investigated.

七元瓜环与N,N′-二烷基-1,3-(4,4′-二吡啶基)丙烷衍生物的相互作用

以1,3-(4,4′-二吡啶基)丙烷为母体,合成了N,N′-二乙基、二丁基、二己基以及二辛基1,3-(4,4′-二吡啶基)丙烷衍生物.利用1H NMR技术和紫外吸收光谱法,考察了Q[7]与上述链状吡啶衍生物的相互作用.实验结果表明,Q[7]与客体PC0,PC2作用,瓜环包结客体的二吡啶基丙烷部分形成1∶1的包结配合物;对于取代烷基碳链数大于4的N,N′-二烷基-1,3-(4,4′-二吡啶基)丙烷衍生物,随着主体与客体摩尔比值的增加,体系中主-客体相互作用的主导模式是Q[7]逐渐包结了客体二吡啶基丙烷部分,进而形成Q[7]包结客体两端取代烷基,甚至形成一个客体分子上"挂满"3个主体瓜环的包结物.

4,4’-二葡萄糖苷-2,2’-二苯酚基异丙烷的合成

1,2,3,4,6-penta-O-acetyl-β-D-glucose is prepared by the reaction of glucose and acetic anhydride.Based on the activity difference and steric hindrance of acetyl in 1,2,3,4,6-pen-ta-O-acetyl-β-D-glucose,4,4’-bis(2,3,4,6-tetra-O-acetyl-β-D-glucoside)-2,2-diphenol propane is prepared by the reaction with1,2,3,4,6-penta-O-acetyl-β-D-glucose and bisphenol-A which structure is symmetric in the presence of dichloromethane.All acetyls of the synthetic products are eliminated in alkali methanol,then a new kind of intermediate of glycophane,4,4’-Bisglucoside-2,2-diphenol propane is obtained.A series of analysis methods including IR analysis、nuclear magnetism resonance(1H NMR)、elementary analysis(EA)and melting point determination are applied to determine products purity and characterize products structure.

Synthesis and Characterization of a Novel Copoly(aryl ether ketone) Containing 4, 4'-Biphenyl-bis[4-phthalazin-1(2H)-one] Moiety

A new monomer of 4, 4-biphenyl-bis[4-phthalazin-1(2H)-one] was synthesized from biphenyl and phthalic anhydride, and a novel copoly(aryl ether ketone) (PPEK) was synthesized from 2, 2-bis(4-hydroxyphenyl)-propane (BPA), 4, 4'-biphenyl-bis-[4-phthalazin-1(2H)-one], 4, 4- difluorodiphenylketone (DFK). The monomer and copolymer were characterized by FT-IR and 1H-NMR. DSC and TGA were used to the novel polymer.

两个含3,3′-硫代二丙酸配体的锰和铜配合物的合成、晶体结构与性质（英文）

使用3,3′-硫代二丙酸、4,4′-联吡啶和硝酸锰在水热条件下反应合成了1个锰配合物,即{[Mn(DPA)(4,4′-bipy)]·H_2O}_n(1)(DPA=3,3′-硫代二丙酸,4,4′-bipy=4,4′-联吡啶);然后又利用3,3′-硫代二丙酸、1,3-双(4-吡啶基)丙烷和硝酸铜在水热条件下反应合成了1个铜配合物,即{[Cu(DPA)(bpp)(H_2O)]·H_2O}_n(2)(DPA=3,3′-硫代二丙酸,bpp=1,3-双(4-吡啶基)丙烷)。并对它们分别进行了元素分析、红外光谱、热稳定性、X射线粉末衍射和X射线单晶衍射的表征。结果表明:配合物1和2分别由3,3′-硫代二丙酸配体和不同氮杂环分子以及金属离子构筑,形成了二维层状的结构。氢键和π-π作用进一步将二维结构拓展成三维超分子网络。

双酚A及四溴双酚A的热分解动力学研究

采用热分析方法(TG,DTA)、热分解气相色谱和红外光谱等联合手段,对双酚A(4-4'-二羟基二苯基丙烷)和四溴双酚A(2,2-二[3,5-二溴-4-羟基苯基]丙烷)的热稳定性及热分解反应动力学进行了研究,发现它们的稳定性和分解机理与取代基性质、分子结构的对称性有明显关系,并对其稳定性、热解机理从电荷分布出发进行了理论分析.