Platinum(<scp>ii</scp>) complexes showing high cytotoxicity toward A2780 ovarian carcinoma cells
作者:Katarzyna Choroba、Barbara Machura、Luis R. Raposo、Jan G. Małecki、Slawomir Kula、Michał Pająk、Karol Erfurt、Anna M. Maroń、Alexandra R. Fernandes
DOI:10.1039/c9dt02894c
日期:——
the Pt(ii) complexes was determined by 1H and 13C NMR spectroscopy, HR-MS spectrometry, elemental analysis and X-ray analysis (for (1)). The electrochemical and photophysical properties of [Pt(Ln)Cl]CF3SO3 were compared with the behaviour of the Pt(ii) complexes with aryl-substituted 2,2':6',2''-terpyridine ligands. What is noteworthy is that the coordination ability of dtpy toward the Pt(ii) centre
使用由9-蒽基(L1),9-菲基(L2)和1-吡啶基(L3)基团官能化的2,6-双(噻唑-2-基)吡啶制备[Pt(Ln)Cl] CF 3 SO 3(1-3)。Pt(ii)配合物的组成通过1H和13C NMR光谱,HR-MS光谱,元素分析和X射线分析确定(用于(1))。将[Pt(Ln)Cl] CF3SO3的电化学和光物理性质与带有芳基取代的2,2':6',2''-吡啶吡啶配体的Pt(ii)配合物的行为进行了比较。值得注意的是,首次研究了dtpy对Pt(ii)中心的配位能力。所有复合物均通过MTS分析在以下四个肿瘤细胞系上进行了体外测试:A2780(卵巢癌),HTC116(结肠直肠癌),MCF7(乳腺癌),和PC3(前列腺癌)以及正常的原代成纤维细胞上。化合物(1-3)在A2780细胞系中表现出剂量依赖性的抗增殖作用,其中(3)>(2)>(1),这种A2780细胞活力的丧失是由于通过线粒体和自
Aryl substituted 2,6-di(thiazol-2-yl)pyridines –excited-state characterization and potential for OLEDs
compounds 3, 4 and 6, which show a large, positive solvatochromism, the excited states gain significant chargetransfer (CT) character. The efficiency of the ICT/TICT state formation was found to depend on solvent polarity and torsional hindrance between the aryl and dtpy moieties. To investigate the impact of torsional hindrance on ICT formation, ultrafast pump–probe measurements were performed for compounds
一系列2,4-二(噻唑-2-基)吡啶(dtpy)在4-位上用1-萘基(1),2-萘基(2),9-蒽基(3),2-蒽基(dtpy)官能化4),9-菲基(5)和1-吡啶基(6)已被合成并进行了彻底的研究。的分子式1 - 6通过测定1 H和13 C NMR,元素分析和X射线分析(1,3和5)。在固态结构中,dtpy骨架显示出良好的平面性,而芳基取代基则明显向中心吡啶倾斜,以最小化环间H-H斥力和氢-π环空间斥力。通过在溶液和固态中进行吸收和发射UV-Vis研究以及量子化学计算,已经探索了涉及光物理过程的激发态的性质。较大的芳基取代基(如蒽基和pyr基)与更强的π-离域作用相一致,会引起吸收带和发射带发生明显的红移。对于化合物3,4和6,表现出大的正溶剂变色,激发态获得显着的电荷转移(CT)特性。发现ICT / TICT状态形成的效率取决于溶剂极性和芳基与dtpy部分之间的扭转位阻。为了研究扭
Self-activating nuclease and anticancer activities of copper(ii) complexes with aryl-modified 2,6-di(thiazol-2-yl)pyridine
作者:Lüying Li、Kejie Du、Yi Wang、Haina Jia、Xiaojuan Hou、Hui Chao、Liangnian Ji
DOI:10.1039/c3dt50395j
日期:——
Three mononuclear coppercomplexes [Cu(PDTP)Cl2] (PDTP = 4-phenyl-2,6-di(thiazole-2-yl)pyridine, CuPDTP), [Cu(ADTP)Cl2] (ADTP = 4-(anthracen-9-yl)-2,6-di(thiazole-2-yl)pyridine, CuADTP) and [Cu(BFDTP)Cl2] (BFDTP = 4-(benzofuran-2-yl)-2,6-di(thiazole-2-yl)pyridine, CuBFDTP) were synthesized and characterized. The X-ray single crystallography results indicated that the Cu(II) ions showed slightly distorted