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The cyclization is quantitative and independent on the concentration of the reaction solution.

分子内的thioester ligation定量的产生单环化产物,反应不受浓度和其它官能团的影响。

The experimental results showed that strong phosphorescence could be observed in p-cyclodextrin aqueous solution only at low pH value.

实验结果表明,在环糊精水溶液中只有在较低pH时,才能有效抑制分子内的PET过程,使磷光体发射强的磷光,体系的磷光状态为OFF-ON,同时体系包含了AND(β-CD and proton)和NOT(O_2)逻辑功能,可作为一种三输入的INHIBIT逻辑开关。

Physics properties and photoelectric properties of starburst complex can be optimized independence and we can control the interaction in the molecule.

它的物理性质和光电性质可被独立优化,使之适合控制分子内的相互作用。

UV-Vis spectra were measured in weak acidity, neutrality and weak base, the absorption spectra were changed with a large red shift in weak base because of intramolecular charge transfer and azophenol-quinone tautomerism.

并且测量了它们在弱酸性,中性和弱碱性条件下的紫外吸收光谱,讨论了吸收光谱与分子结构之间的关系,认为分子内的电荷转移和醌式互变是碱性条件下吸收光谱发生明显变化的根本原因。

The reaction takes place as soon as 3a is dissolved in solution. With the presence of a tethering terminal vinyl group bound to the vinylidene ligand, the [2+2] cycloaddition of two C=C double bonds readily occurred.

当有一乙烯基键结在丙二烯基上,分子内的两个碳碳双键会马上发生[2+2]的环化加成反应。

The presence of a gem-diphenylmethylene moiety at the vinylidene ligand with the appropriate terminal vinyl or alkynyl group along with the proper steric environment implements such a novel reactivity in the ruthenium vinylidene complexes.

因此推测丙二烯基与末端的不饱和键确实可以进行一些分子内的反应,但是gem-diphenylmethylene 官能基需位於适当的立体位置方可进行。

Transformation into active enzymes occurs as one or more peptide bonds in the zymogen are cleaved.

活化作用即是打断原分子内的一个或多个键。这作用受不同的催化或受的活化型本身的催化。

The absorption peaks of cyanine dye part in two compounds were bathochromic shiftsin some content because they were infected by [60]fullerene, this indicated that therewas interaction between [60]fullerene part and cyanine dye part in the compounds.

但染料部分的吸收由于受〓富勒烯的影响,在不同程度上发生了红移,这初步说明了:〓富勒烯和染料之间有分子内的作用。

The presence ofelectron donor(methoxy or methylenedioxy group) and electronacceptor anhydride group) moieties on phenyl fulgide derivativesleads to an intramolecular charge transfer upon exication that results ina solvatochromic effect.

可将苯基俘精酸酐视为由给电子基和得电子基两部分组成,分子内的电荷转移是造成正溶剂效应的主要原因。

Their photophysical properties were investigated in solvents of different polarities by absorption and emission techniques.

研究了不同极性溶剂中这些化合物的分子内的光诱导电荷转移现象。

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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。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力