杂原子

The results of this study indicate that the introduction of a heteroatom into the methylene (–CH2–)n skeleton of bis spacers is an efficient method for construction of novel MOFs.

这部分工作表明通过向柔性双咪唑配体的烷基链骨架(–CH2–)n中引入杂原子O来进行修饰对于构建具有新奇结构的金属-有机框架是一种行之有效的方法。

Difunctional group reagents, which have metal and heteroatom linked to the olefinic carbon atoms, play an important role in organic synthesis, especially in developing many convenient methods for the stereoselective synthesis of substituted alkenes.

含金属或杂原子的双官能团试剂为取代烯烃的立体选择合成提供了许多方便方法，在有机合成中具有重要作用。

These phenomenon showed that there were interactions between the frontier orbits of TiO〓 semiconductor and the heteroatom. It give a further support to the new point of view drown by us that the DOS at the lower part of CB and the upper part of VB of semiconductor nano-TiO〓 was important to the photocatalytic activity.

说明了杂原子的前线轨道能级与TiO〓半导体的前线轨道之间有相互作用，从而进一步印证了我们提出的半导体光催化剂价带顶部和导带底部的能级密度对纳米TiO〓催化剂光催化活性有较大影响的新观点。

There were hundreds of catalysts from the first single inorganic acid to current heterogeneous catalysts such as metallic oxide, heteroatom molecular sieve and heteropoly acid catalyst.

目前已见报道的催化剂已不下百种，其发展过程从最初单一的无机酸和无机盐类催化剂，发展到非均相的金属氧化物、杂原子分子筛、杂多酸盐催化剂等。

The procedure can be simply described as follows: heteroatoms source such as AlCl3 or TiCl4 is added into the reaction system together with silica source and surfactant and heteroatom species will uniformly dispersed in the form of ions.

调节pH值的目的在于使杂原子物种不再以离子形式而以酸根形式存在从而可以与孔壁上的硅羟基通过缩合结合在一起从而进入介孔骨架。

From the result of CV, it can be concluded that azomethine diamine and p-amino-phenyl-9-ethyl- carbazolyl azomethine possess electrochemical activity, and the electrochemical activity arised from the heteroatom of molecules.

我们用循环伏安表征了化合物的电化学性质，从循环伏安的结果来看，偶氮甲碱二胺和对氨基苯基-9-乙基咔唑基偶氮甲碱具有一定的电化学活性，并且这些电化学活性主要来自分子中的杂原子。

The electrochemical property of PDT and PDT metal complexes were characterized by CV, from the result of CV, it can be found that PDT and PDT metal complexes possesses electrochemical activity, which arised from the heteroatom of molecules.

我们用循环伏安表征了对二苯甲醛缩氨基硫脲及其金属络合物的电化学性质，从循环伏安的结果来看，对二苯甲醛缩氨基硫脲及其金属络合物具有一定的电化学活性，并且这些电化学活性主要来自于分子中的杂原子。

The molar extinction coefficient was lowered because of the presence of heteroatom in above-mentioned molecules, so the UV-vis absorption was weakened, but the brightness of 36a-e fluorescence was increased.

由于N、O和S杂原子的引入降低了卟啉衍生物的摩尔消光系数，因而紫外吸收较弱，但化合物36a-e荧光发射能力增强。

With the electronegativity of heteroatom (such as sulfur, oxygen and nitrogen attaching directly to phosphorus) increasing, 31P NMR chemical shift moves to low field.

与磷相邻基团的电负性增加时，31P NMR化学位移向低场位移，如：杂原子硫、氧、氮，与磷直接相连将使磷谱向低场位移。

When the mesostructure is basically formed, the pH value of the reaction system is adjusted to 7-8 and then the hydrothermal crystallization is prolonged for some time to obtain heteroatom-incorporated mesoporous silica. The aim of adjusting pH value to near neutral is to change heteroatom species from the cationic to oxo form and therefore can enter the mesoframework through condensation with silanol groups in the wall.

该方法主要的特点是：操作简单（以调节体系pH值代替繁琐的后处理过程），效率高（可以得到Si/Al=5且铝物种全部处于四配位的骨架位置的Al-SBA-15），不破坏产物有序结构（产品具有高度有序的介孔结构），具有普遍性（适用于多种杂原子的掺杂如铝、钛、钒）。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。