查询词典 intramolecular

Recently, Shelnutt and co-workers obtained discrete porphyrin nanosheets reprecipitated from their solutions;[3] Sathish and co-workers constructed hexagonal C60 nanosheets using a liquid–liquid interfacial precipitation method;[4] the groups of Yao[5] and Hu[6] prepared singlecrystalline nanosheets of polycyclic aromatics using a surfactant- assisted reprecipitation and a physical vapor transporting method, respectively; and Zhang and co-workers suggested that molecules with intramolecular charge-transfer dipole moments could be grown into quasi-2D nanostructures.

近年来，Shelnutt及其同事由他们的溶液再沉淀获得了离散的卟啉纳米片[3]； Sathish和他的同事用液－液界面沉淀法构建了六边形的C60纳米片[4]； Yao[5]和Hu[6]分别用表面活性剂辅助的再沉淀和物理气相输运法制备了多环芳烃的单晶纳米片；而Zhang和他的同事提出，具有分子内电荷转移偶极矩的分子可以生长成准二维的纳米结构[7]。

Recently, Shelnutt and co-workers obtained discrete porphyrin nanosheets reprecipitated from their solutions;[3] Sathish and co-workers constructed hexagonal C60 nanosheets using a liquid–liquid interfacial precipitation method;[4] the groups of Yao[5] and Hu[6] prepared singlecrystalline nanosheets of polycyclic aromatics using a surfactant- assisted reprecipitation and a physical vapor transporting method, respectively; and Zhang and co-workers suggested that molecules with intramolecular charge-transfer dipole moments could be grown into quasi-2D nanostructures.

最近，舍纳特和同事获得离散卟啉薄片reprecipitated其解决方案； [3] Sathish和同事构建六角 C60的薄片采用液液界面沉淀方法； [4]姚明集团[5]和胡[6]准备singlecrystalline 多环芳香烃薄片的使用表面活性剂再沉淀和辅助物理气相传输法分别，张和同事建议随着分子内电荷转移分子偶极时刻可以发展成为准二维纳米结构。

Recently, Shelnutt and co-workers obtaineddiscrete porphyrin nanosheets reprecipitated from theirsolutions;[3] Sathish and co-workers constructed hexagonalC60 nanosheets using a liquid–liquid interfacial precipitationmethod;[4] the groups of Yao[5] and Hu[6] prepared singlecrystallinenanosheets of polycyclic aromatics using a surfactant-assisted reprecipitation and a physical vapor transportingmethod, respectively; and Zhang and co-workers suggestedthat molecules with intramolecular charge-transfer dipolemoments could be grown into quasi-2D nanostructures.

近日，舍纳特和同事获得离散卟啉薄片reprecipitated其处理方案； [3] Sathish和同事构建六角C60的薄片采用液液界面沉淀方法； [4]姚明集团[5]和胡[6]准备singlecrystalline多环芳香烃薄片的使用表面活性剂再沉淀和辅助物理气相传输法分别，张和同事提议随着分子内电荷转移分子我极时刻可以发展成为准二维纳米结构。

In the first part, the prototropic hydroxy-oxo tautomerisms of 2 (1H)- pyridones/2-hydorxypyridines, one of the most important model systems in molecular biology, have been investigated with self-consistent reaction field method based on continuum model. The influence of the nature and position of substituent groups, the existence of intramolecular hydrogen bonding and tautomeric competition between 2-hydroxy and 4-hydroxy on the tautomeric equilibria have also been examined.

第一部分，首先从溶剂敏感的异构化性质入手，用基于连续介质的自洽反应场理论方法对一类重要的生化模型体系—2（1H）-吡啶酮／2-羟基吡啶互变异构体系进行了研究，系统地考察了取代基性质、取代基位置、分子内氢键的形成以及互变异构竞争的存在对异构化平衡的影响。

Finally, the construction of a tetracyclic core of the target molecule was achieved by oxidation of the furan ring and intramolecular Michael addition. The total synthesis of 8-demethyl-pallavicinin B will be completed after two or three more operations starting from a pivotal precursor.

在构建目标分子骨架结构的研究中，成功的运用过酸氧化呋喃环-分子内Michael加成策略构建了四环体系，再经过两到三步的转化即将可以完成8-去甲基-pallavicinin B的全合成。

It was found that the introduction of t-butyl or methoxy group in the triphenylamine subunit could lead to more efficient photoinduced intramolecular charge transfer, thus improving the overall photoelectric conversion efficiency of the resultant DSSC.

研究结果表明叔丁基或甲氧基取代三苯胺基团能够促进分子内电子转移，进而提高染料分子的敏化效率。

It was found that this pathway did not involve an orthoester intermediate, as has been reported to form in other intramolecular reactions between epoxy and ester moieties.

有人认为，这通路不涉及一个酸酯中间，如据报道，在其他形式的分子内反应与环氧酯基。

The left coumarin moiety was assembled by aldol condensation and then intramolecular esterification in one pot, which would be a popular method to build 3-substituted coumarins later.

最终，我们以12%的总产率和98.7%的ee值首次实现了-rutamarin的手性全合成；同时，我们还以17%的高产率实现了其消旋体的合成，比之以前文献报道的产率提高了2.5倍。

At present, some theoretical procedures were proposed to investigate the energies of intramolecular hydrogen bonds for special systems, such as cis-trans method, ortho-para method, and isodesmic reaction method.

现在，已有几种方法用来计算一些特殊体系中的分子内氢键键能，例如cis-trans方法、ortho-para方法和isodesmic reaction方法。

A plausible process of this reaction is as following: Aldehyde was in equilibrium with the enol form, aldehyde reacted with aniline catalyzed by 2,2,2-trichloroacetic acid to afford imine, the generated imine immediately reacted with enol to form intermediate via intramolecular cyclization.

我们发现一分子芳基叠氮和一分子三苯基磷反应生成一分子磷亚胺，后者与由两分子取代的苯氧乙酰氯原位生成的烯酮反应生成4-亚烷基-β-烷基-内酰胺，其串联过程涉及烯酮亚胺的形成及其与烯酮的[2+2]的环加成反应。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。