晶体衍射

The crystal structure,morphology and tribological properties of Ag films deposited at low temperature were analyzed by X-ray diffraction,scanning electron microscopy and ball-on-disk vacuum tribometer,respectively.

利用X射线衍射仪、扫描电镜和真空摩擦试验机对低温沉积银膜的晶体结构、表面形貌和摩擦学性能进行了研究。

The crystal belongs to triclinic, space group P-1 with α=0.775 1(2) nm, b=0.837 7(2) nm, c=1.003 7(2) nm,α=75.57(3),β=83.05(3),γ=86.08(3), D=1.296 g/cm^3, Z=2, F(000)=256,μ=0.095 mm^(-1), and the final deviation factor R=0.0545 and wR=0.146 0. X-ray analysis reveals that molecules are linked by intermolecular O-H…O hydrogen bonds formed between the adjacent molecules.

具体测定结果如下：该晶体属于三料晶系，P-1空间群，α=0.7751 (2) nm， b=0.8377 (2) nm， c=1.0037 (2) nm，α=75.57 (3)，β=83.05 (3)，γ=86.08 (3)， D=1.296 g/立方公分，Z=2， F(000)=256，μ=0.095 mm^(-1)，最终偏差因子分别为R=0.0545，wR=0.1460.X-射线衍射分析表明，分子之间通过相邻分子间形成的O-H…O氢键相连。

Treatment of N-p-tolylsulfonylindole 1 with acetyl chloride in dried dichloromethane gave the title compound, N-p-tolylsulfonyl-3-acetyl-indole 2 C17H15NO3S, M(subscript r=313.36 in 89% yield. Single-crystal structure of 2 was determined by X-ray crystallography.2 crystallizes in the triclinic system, space group P-1 with a=10.0264(13), b=12.5913(16), c=14.1621(18)?

N-对－甲苯磺酰－吲哚(1)在二氯甲烷中与乙酰基氯反应得到产率为89%的N-对－甲苯磺酰－3-乙酰基－吲哚(2)（分子式：C17H15NO3S，分子量：313.36），用单晶X-射线衍射方法测定了2的晶体结构并表明：属三斜晶系，空间群为P-1，单胞参数为a=10.0264(13)，b=12.5913(16)，c=14.1621(18)？

METHODS The structures of compound I, extracted from Clausena lansium Skeels, and synthesized compound III were determined by single crystal X-ray diffraction analysis. The stereo-structures of compound II and IV were also built up through Tripos force field based on crystal structures of compound I and III. RESULTS The molecular formula and molecular weight were found to be C18H17O2N and 279.34 respectively.

方法用单晶X-射线衍射分析法测定了从植物黄皮提取物中分离得到的化合物I和采用合成方法得到的化合物III的晶体结构，并用分子力学计算方法分别模建化合物II和IV的立体结构。

The crystal structure of BC in dried and wet states is studied by FT-IR, X-ray diffractometry and CP/MAS solid-state^13C NMR The cellulose Ⅰ(subscript α) and crystallinity index of the bacterial cellulose in dried state are very high compared with the other native cellulose such as cotton and Valonia.

用傅立叶红外光谱、广角X射线衍射、交叉极化／魔角旋转固体核磁共振(CP/MAS^13CNMR)分析细菌纤维素在干态下和湿态下的晶体结构。

The irregular variation of lattice constants of the a-LiIO3 single crystal originated in the growth process and the fluctuation phenomena of lattice constants under the action of an electrostatic field were investigated by an X-ray double-crystal spectro-meter in the arrangement.

本文用X射线双晶衍射平行排列的方法，观察了α-LiIO_3单晶体生长过程点阵常数a与c不规则的不均匀性以及在静电场作用下c的起伏现象。观测出在静电场作用下a与c的变化和沿电场方向晶体表面层存在点阵常数的梯度。

The crystallization behavior and crystals structures of copoly (vinylidene fluoride-chlorotrifluoroethylene), which was synthesized with n: n=1: 4, were investigated by DSC, WAXD and FTIR, respectively.

用示差扫描量热法、广角X射线衍射和傅里叶红外光谱研究了偏氟乙烯／三氟氯乙烯单体摩尔比为1： 4的无规共聚物的结晶与晶体结构。

Al impurity, the floatabilities of hematite and aegirine were resemble, which is contributed to the existence of structrual iron ion on surfaces of both minerals. It is the structrual iron ion that accelerates the floatability of aegirine greatly and leads to difficult separation with hematite. 2. The basic mechanism of actions of fluorosilicate salts as selective depressants of aegirine during the direct flotation of hematite was investaged detaily by using FTIR and XPS spectrocppy, fluorosilicate salts are poor depressants for hematite, but are very strong depressants for iron-containing silicate such as aegrine in weakly acid medium, which can enlarge the flotation differences between two minerals.

运用X射线衍射、俄歇能谱等测试手段研究了赤铁矿与钠辉石纯矿物的晶体结构特征，表面破裂面的元素组成与赋存状态，发现在白云鄂博不同的矿床（氧化矿段，原生矿段，风化矿段）存在着三种颜色与可浮性均有所差别的钠辉石，其可浮性的差异主要是由于表面含铁量及Ca、Al等杂质含量的不同而引起的，结构Fe〓的存在导致钠辉石可浮性剧增从而与赤铁矿难以分离。

Using the hanging drop method, good crystals of maltotetraose-forming amylase isolated from culture of Alcaligenes sp have been grown. Diffraction density data to 2.7? resolution were collected on a Mar Research Image Plate Detector System.

用悬滴汽相扩散法生长了从产碱菌中分离纯化得到的麦芽四糖淀粉酶的晶体，并在MarRe search面探测器上收集了一套2.7埃分辨率的衍射强度数据。

Quenching at other lower start temperature,the X-ray diffraction pattern of alite was like the character of the MⅠpattern alite.

在其它较低温度开始淬冷，掺杂熟料中阿利特更多呈现MⅠ型晶体的衍射特征。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。