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Copper Coordination Polymers of N1,N4‐Bis(pyridin‐2‐ylmethyl)terephthalamide: Synthesis, Structures, DNA Binding and Cleavage, and Catalytic Activity for Oxidation of 1‐Phenylethanol
Zeitschrift für anorganische und allgemeine Chemie ( IF 1.1 ) Pub Date : 2020-06-09 , DOI: 10.1002/zaac.202000129
Zhou-Ping Hu 1 , Wei-Dong Yu 1 , Xia Liu 1 , Qing Tang 1 , Zi-Wei Fang 1 , Shou-Chun Zhang 1
Affiliation  

Two Cu coordination polymers [Cu(bpmt)Cl2·2DMF]n (1), [Cu(bpmt)(μ‐Cl)·DMSO]n (2) [bpmt = N1,N4‐bis(pyridin‐2‐ylmethyl)terephthalamide)], were synthesized and characterized. X‐ray single‐crystal diffractions revealed complex 1 exhibits a one‐dimensional (1D) chain in which central CuII ions are located in a six‐coordinate slightly distorted octahedral structure. Complex 2 features 1D chain composed of CuI–Cl bridges and all the central CuI ions are situated a twisted tetrahedral configurations. Multi‐spectroscopic DNA interaction studies indicate that the two complexes may bind to DNA via groove binding modes, and the calculated binding constants are 1.42 × 104 (1‐CT‐DNA) and 1.41 × 104 (2‐CT‐DNA). Both complexes are also capable of efficiently cleaving plasmid pBR322 DNA in the presence of H2O2 via an oxidative mechanism. Furthermore, 1 and 2 are employed as catalysts for the oxidation of 1‐phenylethanol to acetophenone. Complex 1 displays good catalytic potential with the conversion rate reaches 99 % using tert‐butyl hydroperoxide (TBHP) as oxidant and CH3CN as solvent at 60 °C for 2.0 h.

中文翻译:

N1,N4-双(吡啶-2-基甲基)对苯二甲酰胺的铜配位聚合物:合成,结构,DNA结合和裂解以及对1-苯基乙醇氧化的催化活性

两种铜配位聚合物[Cu(bpmt)Cl 2 · 2DMF] n1),[Cu(bpmt)(μ‐ Cl)· DMSO] n2)[bpmt = N 1,N 4 -bis (pyridin-2) -(ylmethyl)terephthalamide)],进行了合成和表征。X射线单晶衍射表明,配合物1表现出一维(1D)链,其中中心Cu II离子位于六坐标轻微扭曲的八面体结构中。Complex 2具有由Cu I -Cl桥和所有中心Cu I组成的一维链离子位于扭曲的四面体构型。多光谱DNA相互作用研究表明,这两种复合物可能通过凹槽结合模式与DNA结合,计算出的结合常数为1.42×10 41 -CT-DNA)和1.41×10 42 -CT-DNA)。在H 2 O 2存在下,两种复合物还能够通过氧化机理有效地裂解质粒pBR322 DNA 。此外,使用12作为将1-苯基乙醇氧化为苯乙酮的催化剂。配合物1表现出良好的催化潜力,使用叔胺的转化率达到99%于60°C的条件下,以叔丁基过氧化氢(TBHP)为氧化剂,以CH 3 CN为溶剂2.0 h。
更新日期:2020-06-09
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