A New Copper（Ⅰ） Iodide Coordination Polymer Incorporating Cu2I2 Double-stranded Stair: Synthesis,Crystal Structure and Luminescent Property

A new coordination compound, [(CuI)(Btd)]n(1, Btd=2,1,3-benzothiadiazole), was obtained at room temperature by the reaction of 2,1,3-benzothiadiazole with CuI and KI saturated aqueous solution. It was characterized by elemental analysis, IR spectroscopy, single-crystal X-ray diffraction analysis and photoluminescence. The complex crystallizes in the triclinic Pī space group, with a=4.1620(6), b=10.4590(15), c=10.5052(15), α=69.310(2), β=83.608(2), γ=78.873(2)o, V=419.30(10)3 , Z=2, C6H4N2SCuI, Mr=326.61, Dc=2.587 g/cm3 , F(000)=304 and μ(MoKα)=6.464 mm-1 . The final R=0.0418 and wR=0.0936 for 1451 observed reflections with I>2σ(I) and R=0.0422 and wR=0.0939 for all data. In the complex, the Cu atoms are coordinated by one nitrogen atom and three iodine atoms to form a double-stranded stair, and such stairs are further linked to build a 2D framework via C-H…I interactions.     

纳米尺度下光热治疗等离激元耦合影响分析

作为一种高效、局域化且高度可控的纳米热源,金纳米棒越来越多的应用于肿瘤的光热治疗之中。为探讨微观尺度下金纳米棒的产热与传热机理,以及颗粒之间耦合作用对体系光热效应的影响。本文运用基于有限元的COMSOL软件,建立了金纳米棒光热耦合的三维模型,分析了排布方式和颗粒间距等因素对纳米棒光学性质和光热响应的影响。研究表明,不同排布方式下近距离耦合颗粒之间的耦合强度随间距的增大呈指数衰减,在一定间距范围内这种衰减行为可以被等离子体尺度方程描述;单体共振波长照射下,颗粒间的聚集影响光热治疗的效果,在颗粒耦合作用范围内,分散性越高,体系加热效果越好。本文研究模型及所得结论可为金纳米棒的产热与传热机理及肿瘤的光热治疗提供参考与指导。     

AuNPs/g-C3N4/BiOCl0.5Br0.5异质结增敏传感器对2-氯乙基磷酸的光电化学传感

利用石墨相氮化碳/非整比氯-溴化氧铋(g-C3 N4/BiOCl0.5 Br0.5)异质结协同金纳米粒子(AuNPs)的等离子共振效应,构建了AuNPs/g-C3 N4/BiOCl0.5 Br0.5/ITO增敏光电化学传感器,用于植物激素2-氯乙基磷酸(ETH)的快速、灵敏检测.采用扫描电镜(SEM)、X射线衍射(XR...