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A One-dimensional Cd(Ⅱ)Coordination Polymer Constructed from 1,4-Benzene-dicarboxylic Acid and 3-(2,6-Di(pyrazin-2-yl)pyridin-4-yl)-1H-indole:Synthesis,Structure and Photoluminescence 被引量:2
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作者 谢玲 卢丽萍 朱苗力 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2016年第10期1606-1614,共9页
A new coordination polymer {[Cd(C_(21)H_(14)N_6)(C_8H_4O_4)]·H_2O}_n(1) was synthesized by an elaborate design via the reaction of 3-(2,6-di(pyrazin-2-yl)pyridin-4-yl)-1H-indole(bppi),1,4-benzene-... A new coordination polymer {[Cd(C_(21)H_(14)N_6)(C_8H_4O_4)]·H_2O}_n(1) was synthesized by an elaborate design via the reaction of 3-(2,6-di(pyrazin-2-yl)pyridin-4-yl)-1H-indole(bppi),1,4-benzene-dicarboxylic acid(H2bdc) and cadmium(Ⅱ) nitrate in CH_3OH/H_2O mixed solvents. Complex 1 crystallizes in orthorhombic,space group Ccca with a = 20.012(4),b = 31.881(6),c = 19.808(4) ?,V = 12638(4) ?~3,Z = 16,C_(29)H_(20)CdN_6O_5,M_r = 644.91,D_c = 1.356 g·cm^(-3),μ = 0.735 mm^(-1),F(000) = 5184,GOOF = 1.046,the final R = 0.0405 and wR = 0.1063 for 6870 observed reflections(I 〉 2σ(I)). The Cd(Ⅱ) centre is hepta-coordinated by three N and four O atoms from one bppi terminal ligand and two bdc2– ligands,respectively,displaying a capped trigonal prism geometry. Structure extension gives coordination polymeric chains,in which the bdc2– linkers connect Cd(Ⅱ) cations into a one-dimensional(1D) coordination polymer along the c axis,giving zigzag chains with the Cd···Cd separation of 11.178(1) ?. The adjacent bppi terminal ligands in the chains are anti-periplanar conformation. The three-dimensional(3D) structure is stabilized by π···π stacking and hydrogen-bonding interactions to form a supramolecular self-penetrating network with 1D channels. In 1,there are voids 2999.7 ?~3 with 23.7% of per unit cell volume. Thermal analysis indicates that the framework of 1 is stable until 651 K and the photoluminescence of 1 in the solid shows very weak fluorescence at 382 and 560 nm upon excitation at 310 nm. 展开更多
关键词 1 4-benzenedicarboxylic acid 3-(2 6-di(pyrazin-2-yl)pyridin-4-yl)-1H-indole one-dimensional cadmium(Ⅱ) coordination polymer π···π stacking interactions photoluminescence
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Synthesis and Crystal Structure of 4-(4,6-Dimethoxylpyrimidin-2-yl)-3-thiourea Carboxylic Acid Ethyl Ester
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作者 ZHANG Yang HUANG Jie +2 位作者 SONG Ji-Rong REN Ying-Hui XU Kang-Zhen 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2008年第2期195-199,共5页
4-(4,6-Dimethoxyl-pyrimidin-2-yl)-3-thiourea carboxylic acid ethyl ester was synthesized by the reaction of 2-amino-4,6-dimethoxyl pyrimidine, potassium thiocyanate and methyl chloroformate in ethyl acetate. Single ... 4-(4,6-Dimethoxyl-pyrimidin-2-yl)-3-thiourea carboxylic acid ethyl ester was synthesized by the reaction of 2-amino-4,6-dimethoxyl pyrimidine, potassium thiocyanate and methyl chloroformate in ethyl acetate. Single crystals suitable for X-ray measurement were obtained by recrystallization with the solvent of dimethyl formamide at room temperature. The crystal structure was determined by X-ray diffraction analysis. Crystallographic data: C10H14N4O4S, M, = 286.31, monoclinic, space group C2/c with a = 2.5309(3), b = 0.67682(6), c = 1.74237(19) nm, β = 114.744(3)°, V= 2.7106(5) nm3, Dc = 1.403 g/cm3, p = 0.225 mm-1, F(000) = 1200, Z= 8, R= 0.0514 and wR= 0.1529. 展开更多
关键词 4-(4 6-dimethoxyl-pyrimidin-2-yl)-3-thiourea carboxylic acid ethyl ester synthesis crystal structure ^-~ aromatic stacking interactions
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((吡啶-3-基)甲氧基)芳酸衍生物的合成及抗血小板聚集活性 被引量:4
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作者 李家明 马逢时 +3 位作者 龙子江 钟国琛 周鹏 袁明 《化学研究与应用》 CAS CSCD 北大核心 2011年第4期424-430,共7页
以具有活血化瘀作用的中药有效成分阿魏酸为先导物,按生物电子等排原理,设计合成了6个((吡啶-3-基)甲氧基)芳酸衍生物,其结构经IR,1 H NMR,13 C NMR及MS确证。体外药效筛选结果显示,部分((吡啶-3-基)甲氧基)芳酸衍生物对二磷酸腺苷(ADP... 以具有活血化瘀作用的中药有效成分阿魏酸为先导物,按生物电子等排原理,设计合成了6个((吡啶-3-基)甲氧基)芳酸衍生物,其结构经IR,1 H NMR,13 C NMR及MS确证。体外药效筛选结果显示,部分((吡啶-3-基)甲氧基)芳酸衍生物对二磷酸腺苷(ADP)诱导的血小板聚集具有较好的抑制活性,其中化合物1a的抑制作用明显强于阳性对照药奥扎格雷钠。 展开更多
关键词 阿魏酸 ((吡啶-3-基)甲氧基)芳酸衍生物 血栓 抗血小板聚集
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新型[(吡嗪-3-基)甲氧基]芳酸衍生物的合成及其抗血小板聚集活性 被引量:2
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作者 马逢时 李家明 《合成化学》 CAS 北大核心 2019年第9期698-703,共6页
以具有活血化瘀作用的中药有效成分阿魏酸为先导物,利用基于受体结构的理性药物设计方法,设计并合成了6个新化合物[(吡嗪-3-基)甲氧基]芳酸衍生物(6a^6f)。以2-甲基吡嗪和不同取代的芳香酸甲酯为起始原料,经自由基卤代反应、醚化反应和... 以具有活血化瘀作用的中药有效成分阿魏酸为先导物,利用基于受体结构的理性药物设计方法,设计并合成了6个新化合物[(吡嗪-3-基)甲氧基]芳酸衍生物(6a^6f)。以2-甲基吡嗪和不同取代的芳香酸甲酯为起始原料,经自由基卤代反应、醚化反应和水解反应合成6a^6f,其结构经1H NMR,13C NMR, IR和MS表征。体外药效筛选结果显示:6a^6f具有明显的抗血小板聚集活性,其中(E)-3-甲氧基-4-(吡嗪-2-甲氧基)-苯丙烯酸(6a)和3-(2-吡嗪甲氧基)-4-甲氧基-苯甲酸(6e)的活性优于奥扎格雷和阿魏酸。(E)-3-甲氧基-4-(吡嗪-2-甲氧基)-苯丙烯酸(6a)的抗血小板聚集活性,优于化合物(E)-3-(4-(吡啶-3-基)甲氧基)-3-甲氧基苯基)丙烯酸。 展开更多
关键词 阿魏酸 2-甲基吡嗪 [(吡嗪-3-基)甲氧基]芳酸 合成 血栓 抗血小板聚集
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