查询词典 x ray diffraction

The first part is to synthesize 5-formyl -8- quinolinol from 8-uinolinol and chloroform , using ethanol as a solvent. Then analysizing the 5-formyl-8-quinolinol by IR. The second part is , according to ideas of molecule designing, to synthesize the new self-assembly Inorganic-Organic coordination polymers Co(u2-bpyV2O6,(C4H4N2)Ni2(H2O)2-V4Ol2,(Cl2Hl2N2)Co-V2O6 using Cu, Ni, and Co as templating, 4-cyano-pyridine(4-CNPy), 4,4-bipyridine,pyrazine, l,2-bis(4-pyridyl)ethane, 5-formyl -8- quinolinol as building blocks and Ammonium Metavanadate (NH4VO3) as subordinate building blocks by Hydrothermal , analysizing their content of element determining their structures by X-Ray diffraction.

本课题实验分为两部分：一是配体的合成，以8-羟基喹啉、三氯甲烷为原料，以乙醇为溶剂，合成了5—甲醛基—8羟基喹啉并且对其进行了IR的分析测定；二是配位聚合物的合成，通过分子设计，采用溶剂热法以Cu、Ni、Co为中心离子，以5—甲醛基—8羟基喹啉、4，4-联吡啶、吡嗪、1，2-二吡啶基乙烷为配体，以偏钒酸根(VO_3~-)为辅助配体，通过水热法自组装合成了新的3-D网状结构配位聚合物Co(μ_2-bpy)V_2O_6，(C_4H_4N_2)Ni_2(H_2O)_2·V_4O_(12)，C_(12H_(12)N_2Co·V_2O_6，并对其进行了元素分析和晶体结构的测定。

By means of optical and TEM microstructure analyses, room temperature and 900 ℃ tensile tests and X-ray diffraction phase and microchemical quantitative analyses, the structure and mechanical property changes of GH4199 superalloy after prolonged aging in the temperature range of 600℃ to 900℃ and time period of 100 h to 1000 h have been investigated.

采用金相和电镜微观组织观察、室温和高温拉伸试验、物理化学相分析等综合试验方法，对经600、700、800、900℃和100、200、500、1000h长期时效处理的GH4199合金进行测试和研究。

Five of their single crystals were obtained and their structures were determined by X-ray diffraction. By comparison, it was found that dithiocabamate complexes often formed an exactly planar MS4 unit, such as [Mo(R2dtc)2]; and also formed a special MS 5 unit, such as [Cu2(R2dtc)4], the copper atom lies in a distorted square-pyramidal environment.Four kinds of heteropoly acids were prepared and characterized; a series of solid superacid catalyst of supported heteropoly acid were prepared and characterized; regioselectivites of chlorobenzene mononitration with nitric acid with different heteropoly acid on different supports and reaction conditions have been investigated.

培养并解析了5个该类配合物的单晶结构，通过比较，发现二硫代氨基甲酸盐与过渡金属容易形成四配位结构，金属原子与4个硫原子共平面，比如二乙基二硫代氨基甲酸钼；也能形成比较特殊的五配位结构，比如二乙基二硫代氨基甲酸双核铜，Cu原子与5个S原子相连，处于一个变形的四方锥结构的配位环境。

Single-crystal X-ray diffraction analysis of 3, 3'-BTDA and 3, 4'-BTDA showed that they both have bent and noncoplanar structures.

发现螺双内酯在乙酸酐中回流可以直接有效地转化成二酐3，3'-BTDA，并提出了转化机制。

Phosphotungstic acid catalysts supported on ceria with various PW loadings were prepared by the impregnation method , and characterized by X- ray diffraction, acid strength and nitrogen adsorption techniques.

以CeO2为载体，用浸渍法制备了不同负载量的磷钨酸催化剂，并且考察了催化剂光催化脱色甲基橙溶液的催化性能。

X-ray diffraction showed that the hydroxy-chromium oligocations can be used as a stable pillaring agent after aging at 70 ℃ for four days, and a pillared composite with high crystallinity can be obtain...

与原料2H-MoS2相比，柱撑材料的层间距增大，晶粒变小，比表面积增加并且热稳定性提高。对催化苯饱和加氢反应表明，柱撑材料Cr-MoS2的催化活性明显优于未柱撑的2H-MoS2和RaneyNi催化剂，且结晶度较好的柱撑材料更具有较高的催化活性和较好的可重复性。

Early hydration characteristics and paste structure of complex binding material containing high-volume steel slag were studied by the determination of hydration heat evolution, type of hydration products as well as micromorphology of hardened paste using calorimetry, X-ray diffraction, pressure porosimeter, and envirnoment scanning electron microscope.

通过对胶凝材料早期水化放热性能和水化产物种类的测定，以及对硬化浆体显微形貌和孔结构的观察，研究了大掺量钢渣复合胶凝材料的早期水化性能和硬化浆体结构。

Two novel pyrazolone derivatives 2-ethylamino-6H-5-(1-phenyl-3-methyl/phenyl-5-pyrazolone-4-ylene)-1,3,4-thiadiazine (PMCP-ETSC/DPCP-ETSC) containing NNS six-membered heterocycles were synthesized by the condensation reaction of 1-phenyl-3-methyl/phenyl-4-chloroacetyl-pyrazolone-5 with 4-ethyithiosemicarbazide. The title compounds were characterized by elemental analysis, IR, 1H NMR, 13C NMR and single-crystal X-ray diffraction.

利用1-苯基－3-甲基／苯基－4-氯乙酰基－吡唑啉酮－5与4-乙基氨基硫脲发生缩合反应，生成了2个新的双杂环化合物2-乙氨基－6H-5-（1-苯基－3-甲基／苯基－5-吡唑啉酮－4-基）－1，3，4-噻二嗪(PMCP-ETSC/DPCP-ETSC)，并对其进行元素分析、红外光谱、核磁共振表征和晶体结构分析。

We proposed that π-interrupted spiro framework is an effective tool to tune the intermolecular interaction of chromophore moieties, which has been confirmed by single crystal X-ray diffraction analyses.

另外，我们设想螺桥是调制光电功能基团超分子作用的有效工具，设计了一个含螺桥的氧化噻吩寡聚物，这是一个有效的讨论螺桥是如何通过自身的参与来有效地调制光电功能基团的相互作用的模型。

Carbon nanocoils were in situ synthesized by the flame combustion of ethanol using stannic chloride as catalyst precursor. The morphology and structure of CNCs were characterized by means of scanning electron microscope, transmission electron microscope, X-ray diffraction and Raman spectrum.

采用乙醇火焰燃烧，借助于基板材料上涂敷锡盐作为催化剂前驱体，制备了螺旋结构碳纳米纤维；借助于扫描电子显微镜、透射电子显微镜、XRD和拉曼光谱等分析了螺旋碳纤维的形貌和结构。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。