锗（Ⅳ）─氨基酸息夫碱配合物的合成与表征

以水杨醛和α─氨基酸（甘氨酸、丙氨酸、缬氨酸、亮氨酸、丝氨酸、半胱氨酸、笨丙氨酸）缩合而成的息夫碱（简写为ｓａｌ＝ａａ·ｋ）作为配体，与四氯化锗作用生成ＧｅＣｌ４·（ｓａｌ＝ａａ·ｋ）２型的配合物，并通过元素分析、摩尔电导、红外光谱、核磁共振、紫外─可见光谱、热分析等手段研究了配合物的组成和性质．     

Synthesis of Novel 1,3-Dioxolane Nucleoside Analogues

Novel 1,3-dioxolane C-nucleoside analogues of tiazofurin 2-(2-hydroxymethyl-1,3-dioxolan-4-yl)-1,3-thiazole4-carboxamide as well as N-nucleoside analogues of substituted imidazoles 1-(2-hydroxymethyl-1,3-dioxolan4-yl)-4-nitroimidazole and 1-(2-hydroxymethyl-1,3-dioxolan-4-yl)-4,5-dicyanoimidazole were synthesized from methyl acrylate through a multistep procedure. Their structures were confirmed by IR,^1H NMR,^13C NMR spectraand elemental analysis.     

双变形镜自适应光学系统全场补偿实验验证

在双变形镜自适应光学系统中,需要主激光出射时与信标光的振幅分布一致、相位共轭.当主激光到达目标时,光波的分布与目标上发射的信标光光波分布相同,主激光的振幅和相位都得到了校正.根据双变形镜自适应光学技术的概念,设计了一套基于双变形镜的自适应光学系统,对比了双变形镜和传统单变形镜对波前的空间校正能力,在实验上验证了双变形镜...