合成体

In addition, there are a large number of strong hydrogenbondings(N-H…O,O-H…O) and weak hydrogen bondings in involving the cations,perchlorate counter-ions,PNOS and water molecules, which result in formation 3-D networkstructure.

晶体中Ni与配体希夫碱中的N 、N(吡吡啶醛类过渡金属希夫碱配合物的合成、晶体结构及谱学表征啶)、O原子配位形成变形的八面体构型，由于分子间，存在大量的强氢键和弱氢键，这些氢键的交互作用使得该配合物形成二维网状结构。

When chromatin is reproduced, a stretch of DNA already associated with nucleosomes is replicated, giving rise to two daughter duplexes.

体外合成核小体要从考虑自由DNA和组蛋白的组装过程开始，但体内的核小体仅在DNA复制时形成。

This year's work from FAH centered around recent work on the ribosome, which is relevant both for fundamental biology (how proteins are synthesized, also known as "translation") as well as a better understanding of how many antibiotics work (roughly 50% of all antibiotics target the ribosome).

今年FAH的工作集中在核糖体方向，它不仅与基础生物学(蛋白质如何合成，亦称&转录&)相关，并且能更好的理解抗生素运作原理(大约50%的抗生素依赖于核糖体)。

It has been tried to in- duce active hydrolytic grop to the ligands of BAT, attempting to use chemical hydrolyses instead of biological hydrolyses to find ide- al brain radiopharmaceuticals. However, because of the immense work, the shortage of funds, only the syntheses of some latents have been done in this theses, and further study is still needed.

本论方中企图通过对BAT类配体引入活泼水解基因，采用化学水解代替生物水解找到理想的脑放射性药物，但因工作量大，消耗经费等问题，本论文中只作了一些潜体的合成，有关工作，有待于进一步研究。

In order to study the effect of PPh_2 group in the application of chiral ligands 4, 5, 7 and 8 to asymmetric reactions, two ferrocenyl amino alcohols 9a and 9b were Scheme 3 synthesized from chiral amino alcohol derived imines 3 (Scheme 3) and applied in the same asymmetric reactions.

为了探讨二苯氧膦基在配体参与不对称催化反应时对其催化活性和选择性的影响，合成了两个手性二茂铁基氨基醇配体9a和9b(Scheme 3)。

Polyols can be divided into latex polyol and dispersion polyolaccording to the way of preparation. In this paper, acrylic latex polyol and acrylic dispersionpolyol were synthesized respectively. One kind waterborne polyisocyanate, which was waterbornehexamethylenediisocyanate trimer, was obtained by hydrophilic modification. Andisophorone diisocyanate trimer (T1890E), which can formulate into 2K-WPU coatings withpolyols, was selected from the unmodified polyisocyanates.

本文合成了两种羟基组分：丙烯酸乳胶多元醇和丙烯酸分散体多元醇，亲水改性得到了一种水性多异氰酸酯组分：水性六亚甲基二异氰酸酯三聚体，同时在未改性的多异氰酸酯组分中遴选了一种多异氰酸酯：异佛尔酮二异氰酸酯三聚体(T1890E)，可用来组成双组分水性聚氨酯涂料。

Five new solid complexes were synthesized by the coordination of tranisition metals with a Schiff base(C17H21NO,HL) derived from adamantaneamine and salicylaldehyde ,and characterized by elemental analysis,molar conductance,infrared spectra,1H NMR spectra,thermal analysis.

合成了金刚烷胺水杨醛Schiff碱配体(C17H21NO，以HL表示)与5种过渡金属的新的配合物[MCl22]M=Mn(Ⅱ、Co、Ni、Cu、Cd，用元素分析、摩尔电导、红外光谱、1H NMR谱和热重分析对产物进行了表征；讨论了配体与中心金属离子的键合情况，并推测了配合物的结构。

One has the ability of photo-cleavage of DNA and another one as potential anti-cancer drug has the ability of oxidative cleavage of DNA. 1. As for the first system, a new ligand----Tpphz is used as the intercalator of the targeted compound. The 〓 is synthesized and characterized by elemental analysis,〓H NMR, molar conductivity, AgNO〓 titration, UV and fluorescence spectra.

核酸的光切割方面，我们选择了近年来新发现的一个配体Tpphz作为目标化合物的插入配体，合成了新颖的〓单核配合物，并通过元素分析、〓H NMR、摩尔电导测定、中心离子滴定法、紫外光谱和荧光光谱对此化合物进行了详细的表征。

He has managed to synthesise all the RNA components in such a way that, when they are mixed with natural ribosome proteins, they form working ribosomes.

他成功合成了全部RNA成分，使得当他们与天然核糖体蛋白质混合时，他们组成活的核糖体。

The nucleolus is the site of ribosomal RNA transcription and assembly of ribosomal subunits.This subnuclear compartment forms around an array of repeated rDNA genes.

核仁是真核生物核糖体RNA合成、加工和核糖体亚单位装配的场所，这一亚核空间在成簇排列的串联重复rDNA基因周围形成。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失