衍射光谱

Some new lignans of dibenzocycloheptadiene and benzofuran analogues were first synthesized successfully by intramolecular nonphenolic oxidative coupling and rearrangement of the 1,4-biaryl-2,3-dimethyl-2,3epoxide substituted butanes with DDQ in TFA.

以DDQ为非酚氧化偶合试剂与1，4-二芳基-2，3-环氧类化合物进行分子内的非酚氧化偶合反应，首次合成了二苯骈环庚二烯类和苯骈呋喃类的新型木脂素，其结构由不同光谱和X-单晶衍射所确证。

The derived equation for describing the transverse intensity distribution gives good approximation to the experimental result as well as the zero-order Bessel function.

模拟得到的光场分布与实验结果及基于菲涅尔衍射积分理论或空间光谱理论得到的零阶贝塞尔光束很接近。

The carbonated tree in volcanic breccia has been studied through high resolution transmission electronic microscopy,X-ray powder diffraction and laser Raman spectroscopy.

对浙江温岭火山角砾岩中的碳化树木进行了高分辨电子显微镜、X粉晶衍射和激光拉曼光谱研究。

Products on the sulphurized surfaces of cerussite and smithsonite have been studied by means of infrared spectra,Auger electronic spectra,X-ray pho- toelectron spectroscopy and X-ray diffraction techniques etc.

本研究采用红外光谱、俄歇电子能谱、X 射线光电子能谱、X 射线衍射等手段测定了白铅矿、菱锌矿硫化表面产物。

The loss of weight of powder during combustion process, phase change, conglobation, grain size, crystalline grain distortion situation, maximum magnetic energy and coercive force were get detaily.

通过差重分析、红外光谱、扫描电子显微镜、能谱、化学相态分析、X射线衍射、振动样品磁强计等检测手段对所得的样品进行燃烧过程重量损失、相态变化、样品的分散性和均匀性、团聚情况、晶粒尺寸计算、晶格畸变情况、样品的最大磁能积、矫顽力等相关的性能进行检测。

The structure was determined by single crystal X-ray diffraction analysis.

通过X射线单晶衍射、元素分析和红外光谱对其结构进行了表征。

The complexes were characterized by elemental analysis, IR spectrum, and single crystal X-ray diffraction.

通过元素分析、红外光谱和X射线单晶衍射方法对配合物进行了表征。

It was characterized by X-ray single crystal diffraction, elemental analysis, FT-IR spectroscopy and 1H NMR.

通过X射线单晶衍射、元素分析、FT-IR光谱和1H NMR对其进行了表征。

The complex was characterized by elemental analysis, IR spectrometry and single crystal X-ray diffraction.

进行了元素分析、红外光谱表征，并用X-ray单晶衍射法测定了配合物1的晶体结构。

Two ferrocenyl and trimethylsilyl substituted cyanohydrin ethers have been prepared by the addition of trimethysilyl cyanide to two acetyl-substituted ferrocenes: 1-(1-cyano-1-trimethylsilyloxyethyl)-ferrocene (1) and 1, 1'-bis(l-cyano-1-trimethylsilyloxyethyl)ferrocene (2). The structures of these two compounds were characterized by elemental analysis, IR, 1H NMR and X-ray crystallography.

通过两种取代的乙酰基二茂铁与三甲基氰硅烷的加成反应，得到两种取代二茂铁基三甲基硅烷基氰醇醚的晶体：1-（1-氰基－1-三甲基硅烷氧基乙烷基）二茂铁(1)，1，1-二（1-氰基－1-三甲基硅烷氧基乙烷基）二茂铁(2)，用X射线单晶衍射、元素分析、红外光谱和核磁共振氢谱对分子结构进行了表征。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。