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Hou-Jin Li Cai-Wu Jiang Meng-Yang Xu Dan-Feng Yan Jun Xu Wen-Jian Lan 《Tetrahedron letters》2019,60(34):150953
Three sesquiterpenoids pseudapenes A–C (1–3) were isolated from the marine-derived fungus Pseudallescheria apiosperma F52-1. Pseudapene A (1) has an unprecedented 2-methyl-5-methylene-3-(2-methylbut-2-ene)-dicyclo(3, 3, 0)-octane carbon skeleton and pseudapenes B (2) and C (3) possess an unique 2-methyl-4-methylene-2-(2-methylpent-2-ene)-dicyclo(3, 2, 0)-heptane chemical scaffold. Their structures were determined by use of MS and NMR spectroscopic data, and ECD, optical rotation and 13C NMR calculations. 相似文献
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合成了两个新型不对称三齿多吡啶配体 ,3 ( 1,10 菲咯啉基 2 ) 1,2 ,4 三唑 (PHT) ,3 ( 1,10 菲咯啉基 2 ) 5 甲基 1,2 ,4 三唑 (PHMT) ,及其混配配合物 [Ru(tpy) (PHT) ] 2 + (Ru1)和 [Ru(tpy) (PHMT) ] 2 + (Ru2 ) ,通过元素分析、FAB MS ,ES MS ,1HNMR ,IR ,UV vis ,发射光谱和电化学对它们进行了表征 .运用电子吸收光谱、竞争性结合实验和粘度测试等方法研究了配合物与DNA的作用机理 ,结果显示它们均是通过静电作用与DNA结合 ,且Ru2与DNA的作用比Ru1与DNA的作用更强 . 相似文献
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Jiang Cai-Wu Chao Hui Li Run-Hua Li Hong Ji Liang-Nian 《Transition Metal Chemistry》2002,27(5):520-525
Three RuII complexes [Ru(bpy)2(PIP)]2+, [Ru(PIP)2(bpy)]2+ and [Ru(PIP)3]2+ (PIP = 2-phenylimidazo[4,5-f][1,10]phenanthroline, bpy = 2,2-bipyridine) were prepared and characterized by electrospray mass spectrometry, 1H-n.m.r, u.v.–vis. and electrochemistry. The nonlinear optical properties (NLO) of the RuII complexes were investigated by Z-scan techniques with 12 ns laser pulses at 540 nm, and all of them exhibit both NLO absorption and self-defocusing effects. The corresponding effective NLO susceptibility |3| of the complexes is in the (4.15 – 4.86) × 10–12 e.s.u. range. 相似文献
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新型不对称三齿多吡啶配体及其混配钌(Ⅱ)配合物的合成、表征及与DNA相互作用研究 总被引:3,自引:2,他引:1
合成了两个新型不对称三齿多吡啶配体,3-(1,10-菲咯啉基-2)-1,2,4-三唑(PHT), 3-(1,10-菲咯啉基-2)-5-甲基-1,2,4-三唑(PHMT),及其混配配合物[Ru(tpy)(PHT)]2+ (Ru1)和[Ru(tpy)(PHMT)]2+ (Ru2),通过元素分析、FAB-MS, ES-MS, 1H NMR, IR, UV-vis,发射光谱和电化学对它们进行了表征.运用电子吸收光谱、竞争性结合实验和粘度测试等方法研究了配合物与DNA的作用机理,结果显示它们均是通过静电作用与DNA结合,且Ru2与DNA的作用比Ru1与DNA的作用更强. 相似文献
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