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利用四氯合金酸和N-4-甲基苯基2-吡啶甲酰胺(HL)反应,合成得到了一种新的Au(Ⅲ)配合物:二氯(N-4-甲基苯基2-吡啶甲酰胺合金(Ⅲ)[Au(L-N,N′)Cl2]。并通过元素分析、红外光谱、核磁共振谱、质谱及X-射线单晶衍射对其进行了表征。结构分析表明,Au(Ⅲ)由二个氮原子和二个氯原子配位,呈平面四方形结构。质谱研究发现,该化合物与5′-单磷酸鸟苷(5′-GMP)反应生成[Au(L-N,N′)(5′-GMP)2]。 相似文献
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X-射线晶体结构分析表明,在90℃的水热条件下,N-(8-喹啉基)吡啶-3-酰胺在Cd2+的存在下发生醇解。醇解产物为8-氨基喹啉(HL1)和吡啶-3-羧乙酯(HL2),它们与Cd(Ⅱ)配位形成四方锥型化合物。该配合物为单斜晶系,空间群P21/c,a=18.1089(1)?,b=8.9986(1)?,c=19.3070(2)?,β=113.085(1 相似文献
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本文通过将抗癌活性化合物cis-[RuCl2(Me2SO)4]与L-组氨酸在乙醇溶液中或在溶剂热条件下反应,均得到了配合物[RuCl(Me2SO)2(L-His)](1).X-射线单晶结构分析表明该配合物的晶体属变形八面体,空间群P3121,a=b=14.0575(16)A,c=15.637(3)A,分子中含一个结晶水.该配合物中L-组氨酸配体分别通过氨基氮、咪唑氮、羧基氧与中心原子钌(Ⅱ)配位. 相似文献
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(1R,3R)-1-氨基-1,3-二羧基环丁烷衍生物桥联环糊精与一组低分子量多肽之间的包合行为 总被引:2,自引:0,他引:2
The interactions between several peptides with low molecular weight (guest, NH2-Arg-Arg-Trp-Trp-H 2; NH2-Arg-Trp-Arg-Trp-H 3; NH2-Trp-Arg-Arg-Trp-H 4; NH2-Arg-Arg-Trp-Trp-Trp-Trp-H 5; NH2-Trp-Trp-Arg-Arg- Trp-Trp-H 6; NH2-Arg-Arg-Trp-Trp-Trp-Trp-Trp-Trp-H 7; NH2-Arg-Arg-Trp-Trp-Trp-Trp-Trp-Trp-Trp-Trp-H 8) and β-cyclodextrin dimer (host, 1) bridged with the derivative of (1R, 3R)-1-aminocyclobutane-cis-1,3-dicar- boxylic acid were investigated by using fluorescence polarization method in buffer aqueous solution (pH 7.4) at 298K. The binding constants of the cyclodextrin dimer 1 to the guests 2-8 were determined. It was shown that there was a cooperative action of the two cavities of a cyclodextrin dimer in the binding of large substrates, and that the structure and properties of amino acid in the peptides played very important roles in the synergic complexation between host and guest. 相似文献
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合成了一种以吡啶-2,6-二甲酸(dipicH2)桥联的新型双核邻菲咯啉铜配合物,[Cu2(phen)3(dipic)(OH)]·Na·ClO4·2H2O(phen 为1,10-菲咯啉的缩写)。该配合物晶体属于单斜晶系,P21/n空间群,a=1.225 85(2) nm,b=2.196 3(3) nm,c=1.619 5(2) nm,β=100.951(2)°。配合物分子中的两个中心铜离子均处于变形的四方锥配位环境,并通过吡啶-2,6-二甲酸配体上的氧氮原子相连。凝胶电泳结果表明,在pH 7.4,温度37 ℃,以抗坏血酸为还原剂或在H2O2的存在下,该配合物对超螺旋pBR322 DNA表现出显著的切割活性,为人工金属核酸酶的研究提供了新的例证。 相似文献
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Two copper complexes with a new multi-sulfur 1,2-dithiolene ligand, C[Cu(cddt)2] (C=tetrabutylammoni-um, n-Bu4N+; tetraphenylphosphonium, Ph4P+; cddt = 4a, 6, 7, 7a-5H-cyclopenta[b]-1,4-dithiin-2,3 dithi-olate) have been synthesized and characterized by electrochemical studies, IR, EA, etc. The structure of (Ph4P)[Cu(cddt)2] was determined by single crystal X-ray analysis. The complex was crystallized in the triclinic, space group P1 with the cell dimensions a=10.460(2)?, b=13.000(3)?,c=16.270(3)?, α=86.68(3)°,β= 71.92(3)°,γ=66.66(3)° and Z=2. R1=0.0548, wR2=0.1358 for 6786 independent reflections. The four S atoms surround the Cu atom [CuS4] core is a square-planar environment. 相似文献
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X-射线晶体结构分析表明,在90℃的水热条件下,N-(8-喹啉基)吡啶-3-酰胺在Cd2+的存在下发生醇解.醇解产物为8-氨基喹啉(HL1)和吡啶-3-羧乙酯(HL2),它们与Cd (Ⅱ)配位形成四方锥型化合物.该配合物为单斜晶系,空间群P21/c.a=18.1089(1)A,b=8.9986(1)A,c=19.3070(2)A,β=113.085(1)和Z=4. 相似文献