耐高压球形锗窗的研制

研制了耐高压的球形锗窗，测量了其光学和力学性能。     

基于Al6Ge2O13还原制备Ge纳米粒子及其光致发光性能研究

以3-三氯锗丙酸和硝酸铝为原料，通过共沉淀法合成了Al₆Ge₂O₁₃陶瓷粉体，并利用TG-DSC、FTIR、XRD等研究了其形成过程。采用选择还原技术对Al₆Ge₂O₁₃进行还原处理，还原产物观察到发光峰位于564、611、681、730和774 nm的室温光致发光现象。比较不同温度下还原的样品，发现550 ℃保温3 h还原制备的样品发光强度最强，通过XRD、XPS和Raman光谱研究表明样品在可见和近红外光区的发光是源于平均粒径为1.98 nm且未能形成完整晶格的Ge纳米粒子团簇。     

云南临沧锗矿区及其周围现代植物对锗的富集作用研究

研究表明云南临沧锗矿区及其周围现代植物中锗含量明显高于国内外报道的某些地区现代植物中的锗含量；元素的植物吸收系数为６．３，表明锗在研究区现代植物中为强聚集元素。     

三元络合物分光光度法测定微量元素锗

介绍了用三元络合物分光光度法测定粮食，植物，药材中微量锗的方法，方法简单，快速，适合基层实验室采用。     

大直径红外光学锗单晶

采用直拉法研制了大直径红外光学锗单晶，测量了其光学性能和力学性能。     

New Photoluminescence Phenomena of Ge／SiO2 Glass Synthesized by Sol-gel Method

New Ge/SiO2 glasses have been synthesized by heating the GeO2/SiO2 dry gels under H2 gas at 700℃. The resulting fluorescence spectra show that this kind of Ge/SiO2 glasses emit strong photoluminescence at 392 nm (3.12 eV), medium strong photoluminescence at 600 nm (2.05 eV) and weak photoluminescence at 770 nm (1.60 eV) respectively. Possible photoluminescence mechanisms are also discussed based on the results of X-ray diffraction (XRD) and X-ray photoelectron spectra (XPS).     

分光光度法测定益本昌类药酒中微量锗

用苯基荧光酮-溴化十六烷基三甲基铵分光光度法测定了益本昌药酒和益本昌风湿骨痛药酒中锗含量.结果显示,益本昌风湿骨痛药酒中锗含量(1.8512±0.0376 mg/L)比益本昌药酒(0.5481±0.0169 mg/L)丰富.探讨了该类药酒中锗与疗效的关系.     

锗元素和肝炎关系的研究

为研究肝炎和锗元素的关系，检测了肝炎患者在服用Ｇｅ－－１３２治疗前和一或二个疗程治疗的头发、因清中锗元素含量，并设立对照组５０例。治疗结果显示，患者临床症状和实验室检查有明显改善，时其昨有一定的临床和治疗价值。     

Thermal behaviour of mixed Sn and Ge phosphates

Pure and mixed Ge and Sn hydrogenphosphates, prepared either by refluxing in 8M H₃PO₄ or by hydrothermal treatment at 180° or 300°C, have been characterized in terms of chemical composition and thermal behaviour and also tested as catalysts in the 1-butene isomerization, in order to correlate acidic properties with preparation method. Solid solutions for every composition in this system are formed only when using the refluxing method, as proved by X-ray and TG-DTA data. The hydrothermal treatments are strongly influenced by the hydrolysability of the Ge phosphate: in almost all the samples, where Ge was present, GeOHPO₄ was identified on TG-DTA curves by the endothermic H₂O weight loss at 700°–800°C. The acidic properties of the various materials decrease as GeOHPO₄ content increases.     

芪麦口服液锗元素测定

芪麦口服液是广西中医学院药剂科用中药配制成具有补气补血,提高机体免疫力的药剂。测定了该药中锗元素的含量。     

Ge弥散莫来石复合材料的制备及其光致发光性能

以硝酸铝、正硅酸乙酯(TEOS)和3-三氯锗丙酸为原料, 通过溶胶-凝胶法合成了Al12Si3.75Ge0.25O26莫来石固溶体粉体, 并利用热重-差热分析(TG-DSC)、X射线衍射(XRD)、红外光谱(FT-IR)等技术对陶瓷粉体的形成过程进行了表征. 对其进行还原处理并对产物的光致发光性能进行了研究, 观察到发光峰位于565、613、682、731和777 nm的室温光致发光现象. 比较不同还原温度下制备的样品, 结果发现500 益还原样品的发光强度最强. 通过晶格常数计算并结合XPS研究表明, 在500 ℃还原时已有Ge4+从基体中被还原为Ge0粒子. 拉曼光谱显示, 500 益还原样品中, Ge0主要是以平均粒径约为1.95 nm的团簇形式存在.     

Sol-Gel Synthesis of Ge Nanocrystals-Doped Glass and Its Photoluminescence

Ge nanocrystal-embedded SiO₂ glasses were prepared by a sol-gel process. The glasses synthesized through the hydrolysis of Si(OC₂H₅)₄ and GeCl₄ were heated in H₂ gas atmosphere at 500 to 800°C, in which Ge⁴⁺ ions were reduced to precipitate nanosized Ge crystals with the size smaller than 10 nm diameter. Glasses doped with Ge nanocrystals of diameter of ≈5 nm showed the optical absorption edge at ≈2.8 eV and a broad photoluminescence exhibiting the peak at around 2.2 eV. Large Ge crystals precipitated by heating above 800°C showed no photoluminescence.     

再障患者锗元素检测和粒单祖细胞培养的临床意义探讨

采用原子吸收光谱技术测定再障患者４３例头发，血清和骨髓组织的锗元素含量，并与急性白血病２０例，缺铁性贫血１０例和正常人４４例作对照比较，再障，急性白血病和缺铁性贫血组头发，血清锗含量均低低于正常人，Ｐ〈０．０５；再障骨髓锗含量同时也低于正常人，Ｐ〈０．０５；再障骨髓锗含量同时也低于正常人，Ｐ〈０．０５；原发生再障发锗含量低于继发性再障，Ｐ〈０．０５。再障骨髓ＧＭ－ＣＦＵ的数量则显著低于正常人，Ｐ〉     

ChemInform Abstract: Complex Intermetallic Compounds: CaNi5Ge3, Ca15Ni68Ge37, and Ca7Ni49Ge22. Three Multifaceted Ni—Ge Framework Structures Combining the Structural Motifs of Ni3Ge and CaNi2Ge2.

The title compounds are prepared by arc‐melting of the elements followed by heating in Ta ampules (950—1150 °C, 1—12 h).     

High-resolution solid-state MAS 73Ge NMR spectra of some organogermanes

High-resolution solid-state magic angle spinning (73)Ge NMR spectra of some organogermanium compounds were measured. Most tetrasubstituted germanes with identical substituents exhibited signals except for one case. Tetrasubstituted germanes with two kinds of different but somewhat similar substituents exhibited broad peaks. Trisubstituted germanes failed to show signals, indicating the importance of symmetry around germanium.     

Der Chemische Transport ternärer intermetallischer Phasen in den Systemen Cr/Co/Ge und Co/Ta/Ge

Chemical Vapor Transport of Intermetallic Systems. 11 Chemical Vapor Transport of Ternary Intermetallic Phases in the Systems Cr/Co/Ge and Co/Ta/Ge By means of chemical vapor transport using iodine as transport agent it is possible to prepare a number of ternary intermetallic compounds in the system Co/Cr/Ge as single crystals. The transport behaviour in this ternary system is related to that in the binary systems. Some informations are given about transport phenomena in the systems Co/Cr and Co/Ta/Ge.     

原子团簇Ge_7的结构与稳定性

用分子图形软件设计出多种锗原子团簇Ge7的模型,并进行B3LYP密度泛函几何构型优化和振动频率计算,得到8种稳定的同分异构体结构。在锗原子团簇中,大部分原子以三、四、五配位成键。根据分子的总能量,最稳定的Ge7构型为D5h构型。Ge7稳定结构中高配位原子越多,构型越稳定。     

Hydrothermal treatment of Zr,Ti, Sn and Ge hydrogenphosphates

The Zr, Ti, Sn and Ge hydrogenphosphates, generally prepared in a crystalline form by the refluxing method, have been submitted to hydrothermal treatment at 180° and 300°C in order to observe if the preparation time can be shortened maintaining their chemical composition and their -structure. Simultaneous TG and DTA together with XRD revealed to be very suitable techniques for the characterization of the obtained products.Zr phosphate is the most stable and gives in all conditions the -monohydrated hydrogenphosphate phase. Similar behaviour for the Ti phosphate at 180°C, while at 300°C the compound transforms into -Ti(HPO₄)₂·2H₂O. Sn phosphate, even on maintaining its -structure, gives rise to more and more dehydrated phases on the increasing of the temperature of the HT and the concentration of the used phosphoric acid.Ge hydrogenphosphate resulted the least stable under hydrothermal conditions, since even at 180°C it gives rise to GeOHPO₄. Because of the easy hydrolyzability of Ge, the hydrothermal method is not a way to prepare the crystalline -germanium hydrogenphosphate.Thanks are due to C. N. R. — Progetto Finalizzato Materiali Speciali per Tecnologie Avanzate for the financial support.     

原子团簇Ge11同分异体的密度泛函研究

用分子图形软件设计出多种Ge_11原子团簇模型,使用B3LYP密度泛函方法进行几何构型优化和振动频率计算,比较了14种同分异构体的总能量,得到了新的基态构型。锗原子团簇的大部分原子以三、四、五和六配位成键。在Ge11原子团簇中,双角反四棱柱衍生出来的构型能量较低,它是设计大分子锗原子团簇初始模型的重要结构单元。由三棱柱演变的构型能量居中。带心结构和共边构型带有高配位原子,其总能量较高,是不稳定的结构。