配位

Because they have one nitrogen atom with lone pair electrons, benzimidazole compounds are endowed with capability of complex and molecular recognition and they can analogue biological molecule.

苯并咪唑具有一个含孤对电子的氮原子，从而使苯并咪唑类化合物具有很强的配位能力及分子识别能力，可以用于生物分子的模拟。

In the four EDTB metal complexes the central ion is coordinated by four benzimidazole N atoms and two amine N atoms.

晶体解析表明EDTB-Cu和EDTB-Ni配合物中，中心离子分别与四个苯并咪唑氮和两个氨基氮配位，Cu

In chapter 2,all kinds of numerical methods of computational fracturemechanics are summarized,the development histories and present situation ofboundary collocation method,boundary integral method,finite difference method,boundary element method and finite element method are expounded,and theapplication of finite element method in fracture mechanics are emphaticallydiscussed.

第二章 总结了计算断裂力学中各种数值方法，论述了边界配位法、边界积分法、有限差分法、边界元法及有限元法的发展历史和现状，并着重讨论了有限元法在断裂力学中的应用。

Leaf blade papery, oblong to oblanceolate, margin serrate-dentate, teeth callose; inflorescences 1.5-4 cm, paniculate.

纸质的叶片，长圆形到倒披针形，边缘有锯齿配位基，切成齿形；花序1.5-4厘米，圆锥状。

In chapter 3, we studied the syntheses and structures of the diazene-coordinated dimetal bridging carbene complexes.

在第三章中，我们对含有杂环配位的双金属桥卡宾络合物的合成进行了初步的研究。

The metal catalyst complex has an N-heterocyclic carbene ligand, and thus, is excellent in thermal stability and reactivity.

所述金属催化剂配合物含有N-杂环卡宾配位体，因此，其具有极好的热稳定性和反应性。

The experimental results indicated that the two N-heterocyclic carbene palladium complexes with coordination of pyridine could catalyze the coupling of bromobenze and gave yield of 80%.

结果表明，这两个含吡啶配位的N-杂环卡宾钯络合物，对溴苯与丙二腈的交叉偶联，产率可达80％。

This thesis consists of three main parts of the research work on the syntheses, structures and reactivities of the olefin-coordinated transition metal carbene and carbyne complexes. In chapter 1, on the basis of our previous research works on the reacitivites of the cationic carbyne complexes of transition metals with metalcarbonyl anions, we explored the reactions of the cationic carbyne complexes of manganese (1) and rhenium (2) with polymetalcarbonyl anions, and developed a new method for the preparations of heternuclear trimetal bridging carbyne complexes.

本论文对烯烃配位的过渡金属卡宾和卡拜络合物的合成、结构和反应性能进行了研究，主要进行了如下三方面的工作：第一章在本小组过去的研究基础上，进一步考察锰和铼的阳离子卡拜络合物1和2与羰基金属阴离子化合物的反应，用来合成异核多金属桥卡拜络合物，发展合成多金属桥卡拜络合物的新方法和新路线。

In these complexes, there are hydrogen bond reciprocity between carboxyl groups and crystal lattice water molecules.

在这些配合物中，羧基氧、配位水分子和晶格水分子之间存在大量的氢键相互作用。

In terms of crystal structure, we analyzed the coordination modes of carboxyl groups and aggregate mode with credible experiment data.

本论文重点探讨过渡金属配合物分子的有序聚集问题，从晶体结构的角度出发，用可靠的实验数据对羧基的配位方式和聚集体的聚集方式进行了分析讨论。

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。