配

Its bonding characterization and stability are discussed. The results show that these complexes are covalence complexes and that both the in-plane σ-bond and the in-plane π-bond in these complexes play an important role. The ESR spectra of VO -Ser system, VO -Ser-Phen system and VO -Ser-Bipy system in binary solvent glycol/water (V/V=1: 1) solution at various acidities (pH=1～14) have been observed at low temperature. It is found that in different pH ranges different structural complexes are formed.

测定了五种氨基酸席夫碱铜配合物的室温多晶粉末ESR谱、在不同溶剂中的室温及低温溶液ESR谱，确定配合物的配位环境；对室温溶液谱中观察到的二级效应和驰豫效应给予了理论解释、计算了驰豫参数；根据低温ESR波谱，计算了配合物的成键特性及稳定性，发现此类配合物为共价型配合物，平面内σ配键和平面内π配键均起重要作用。

The fundamental principle and the method of coal crag of coal blending were studied.

研究了煤岩配煤的基本原理及方法，介绍了用煤岩配煤方法指导配煤生产的使用效果。

ACTH〓 at concentration of 10〓-10〓 had no significant influence on the saturation curve, Scatchard plot and Hill plot of 〓-DAGO binding to rat brain membrane.

〓在〓范围内对〓的饱和曲线，Scatchard图形及Hi11图形没有明显的影响；但在较高浓度时可以完全取代〓与其受体的结合，〓为37.1±21.8μmol/L，其抑制μ配体〓结合的强度与δ受体的配体DPDPE和κ受体的配体U50488H大致相当，只是稍弱一些，分别是它们的1／8和1／4。

From the equilibra configures obtained during simulating, it was suggested that there is mainly chaintype structure in the LiBO〓 melt, and the dominative variations during the process of being fused may be the decomposition of the long chains, then large member of nonbridge oxygen was come into being in the shorter chains resulting from the decommission.

模拟得到的二硼酸锂熔体中，三配位和四配位的硼氧结构共存，其间相互结合成环状结构；而在偏硼酸锂熔体中没有发现四配位构型，由平衡构像分析，该熔体中可能以链式结构为主，熔化过程中主要的结构变化是长链的分解，分解产生的短链结构产生了大量非桥氧。

We attached for the first time -NOBIN to Frechet-type dendron units. The syntheses of 16 kinds of dendrimer-based NOBIN Schiff-base ligands were achieved in a straightforward manner by simple condensation of -NOBIN with the corresponding salicylicaldehyde derivatives, of which 12 belong to the dendritic Schiff-base ligands and 4 belong to the non-dendritic Schiff-base ligands.

通过手性拆分获得了光学纯化合物NOBIN，首次将NOBIN手性单元连接到树枝状大分子中去，设计合成了四个系列16种新的NOBIN衍生的希夫碱三齿手性配体，其中4种为非树枝状手性希夫碱配体，12种为树枝状手性希夫碱配体。

The fluorescence properties of complexes of europium with β-diketone and terbium with benzoic acid and its derivatives were analyzed and the synergic effect of the second ligand was illustrated from the energy matching of the minimum triplet state of ligands and the resonance energy level of rare earth ions.

提出了掺杂离子荧光增强效应的机理。 4。首次采用ab initio CIS方法，在劈裂价层基组3—21G水平上对各配体进行了量化计算，系统分析了前线分子轨道特征和激发态的能级，从配体最低激发三重态能级与稀土离子共振能级的能级匹配，分析了铕与β-二酮的配合物的荧光性能和铽与苯甲酸系列衍生物的配合物的荧光性能，解释了第二配体的协同效应。

As a complicated multidentate ligand, theβ-diketone ligands and their derivatives have played a significant role in the realm of modern coordination chemistry, crystal engineering, supramolecular chemistry and biomedicine.

β-二酮类衍生配体作为一种优良的含氧配体，一直以来都是现代配位化学、晶体工程和材料科学、超分子化学、生物医学等领域的研究热点之一。

By applying density functional theory, the relationships between the electron structures and the complexation of the two types of bis-β-diketone ligands (dithiol-γ-linked or alkyl-γ-linked) were investigated, based on the polarized continuum model of the self-consistent reaction field. Using the model B3LYP/6-31G**, the geometries of the ligands were optimized and the electron structure changes calculated.

基于自洽反应场中的极化连续介质模型，采用密度泛函理论B3LYP/6-31G**计算了以二硫醚和芳环为桥基的两类双β-二酮配体的空间构型和电子结构，结合其配合物晶体结构数据，研究配体分子电子结构与配位性的关联性。

Then, the minutiae sets are aligned globally through coordinate transform, and the alignment parameters are optimized by using affine transform and least square method. Finally, minutiae matching and directional field matching are respectively achieved based on the minutiae alignment, and the two matching scores are fused into a single to obtain a more reasonable result. Experimental results show that this method contributes to ensure the accuracy of fingerprint identification as well as possesses the real-time performance.

该算法首先利用脊线信息快速确定满足局部匹配要求的细节点对，在此基础上进一步通过全局坐标变换完成细节点的全局配准，并采用仿射变换模型通过最小二乘估计对配准参数进行优化，然后在配准的基础上分别进行细节点匹配和方向场匹配，最后对两种匹配分值进行融合，以取得较合理的匹配结果。

Each Ln ion adopts a dodecahedron coordination environment with eight coordinated oxygen atoms from two terminal monodentate coordinated FcC6H4COO- units, two terminal monodentate coordinated H2O molecules, and fourμ_2-η~2--OOCH_4C_6Fc units.

稀土离子都是八配位的三角十二面体构型，其中两个来自单齿配位的FcC6H4COO-，两个来自配位的水分子，四个来自双齿桥联的μ_2-η~2--OOCH_4C_6Fc。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐