杂原子

The synthesis of pure siliceous and aluminosilicate and various hetero-atoms substituted MCM-48 cubic mesoporous molecular sieves has been studied systematically.

系统考察了全硅和硅铝及各种杂原子取代的MCM-48立方相中孔分子筛的合成。

The mesoporous sieve of the M41S family has framewoks with pore diameters withinthe mesoporous range(2～10nm), huge surfaces areas about 1000cm2/g and amorphism porouswall tent to incorporate hetero atom so that has been used abroad in big moleculer catalysisand separation, life science and environment protection fields and so on.

M41S系列介孔分子筛具有2～10nm左右的规整孔道、大约1000cm~2／g的高比表面积和容易引入杂原子的无定形孔壁等独特优点，被广泛应用在大分子催化、分离和生命科学、环境保护等热点领域。

The results of kinds of characterization showed that the boron was incorporated in the framework.

含杂原子的ZSM-11沸石也是人们关注的焦点之一。

This thesis is a part of our ongoing developing the methodology of Pd -catalyzed reactions, and the methods of quenching carbon-palladium bond and regenerating the divalent palladium.

这对过渡金属催化的涉及碳-杂原子的反应是一个拓展，同时提供了一条新的合成方法。

The former is to prepare polymolybdates coordinated' directly by organic ligands using Na2MoO4 and MoO3 precursors; The latter plays emphasis on exploiting a simple and effective routine to synthesize Keggin polytungstates in which the transition metal or Si acts as the heteratom by reaction precursor Na2WO4.We have synthesized a 4,4'-bipyridine bridging dumbbell-like polymolybdates a metatungs...

前者主要是制备有机配体键合的多金属钼酸盐；后者重点是探索出一个简易、有效的合成过渡金属或主族元素硅作杂原子的Keggin多金属钨酸盐的方法，然后通过变换过渡金属或有机配体的种类探讨对产物结构的影响，再对所得化合物的结构和组成通过物理测试手段进行表征，同时研究其在光、电、磁等方面的性质。

The bisquaramidoacids also showed good enantioselectivities in the reduction of diketones and up to 90％ ee were obtained.

配体中方环C3位的杂原子在反应中可能起到了Lewis碱的作用，从而使这类配体具有了双功能性。

In addition, the amount of heteroatom substitution is another factor that can influence the hydrothermal stability.

本文还开发了另一种新颖的在强酸性体系中合成杂原子分子筛的方法—"pH-adjusting"方法。

At present, the direct synthesis of heteroatom doping SBA-15 study less [9-10]. Yue, etc.

目前直接合成杂原子掺杂的SBA-15的研究较少[9-10]。

At the same time several fused bicyclic heteroatom analogs were synthesized. Some of our Smac mimetics promote apoptosis in cancer cells.

与此同时，我们还合成了一些杂原子取代的并环Smac模拟物并测试其生物活性。

This is a new development after the discovery of the protonolysis of the C-Pd bond in the presence of halide ions and β-heteroatom elimination in presence of nitrogen-containing ligands in our group.

这是我们小组继发现卤离子效应下质子解淬灭C-Pd键，以及含氮配体下β-杂原子消除再生两价钯的研究后，又一新的进展。

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。