这些元素是很好的电子给体。
意味着,这些元素是非常好的电子给体。
Which means that these elements are very good electron donors.
包括镁，钛，卤素和电子给体的催化剂组分，它的制备和应用。
Catalyst component comprising magnesium, titanium, halogen, and electron donor, its preparation and use.
并研究了不同的电子给体对染料的光物理、电化学和光伏性质的影响。
The photophysical, electrochemical properties and photovoltaic performaces of the three as-synthesized dyes with different electron donors were investigated systematically.
平均价电子能都较低的元素，我是指那些低于11电子伏的，这些是很好的电子给体。
OK, elements with low average valence electron energy, and here I'm saying below 11 electron volts, these are good electron donors.
自由基2作为电子给体在四氯化碳中可发生光诱导的氧化还原反应，导致生成相应的哌啶羟胺盐酸盐；
The radical 2 as an electron donor underwent a rapid photo-induced redox reaction in carbon tetrachloride leading to the formation of the corresponding piperidine hydroxylamine hydrochloride.
用于本发明的电子给体组合包括多种取代的蒽化合物或者至少一种取代的蒽化合物与未取代的蒽的组合。
Electron donor combinations used in the invention include multiple substituted anthracene compounds or a combination of at least one substituted anthracene compound with unsubstituted anthracene.
设计合成了一类以蒽为电子给体，带不同吸电子取代基的苯为电子受体的新型短程有机电子给体受体体系。
A new series of short range donor acceptor systems consisting of anthracene and different substituted benzoic esters were synthesized.
在DMSO - H_2O混合溶剂中，用TPP和它的四种金属络合物作为敏化剂，EDTA作为电子给体，经可见光照射，成功地还原了甲基紫精。
In DMSO-H2O mixture, using TPP and metal TPP's as sensitizers, EDTA as electron donor, methyl viologen was reduced to the blue methyl viologen cation radical upon irradiation with white light.
结合室内模拟环道评价装置，测定聚合物的减阻性能，确定DDS作为外给电子体对聚合活性中心数量和分布的调变作用。
By determining drag reduction efficiency of polymer in a simulative loop evaluation apparatus, effects of DDS as external electron donor on number and distribution of active centers were confirmed.
研究了所合成的催化剂催化丙烯常压聚合反应行为，考察了琥珀酸酯类给电子体对催化剂活性及聚丙烯等规度的影响。
The behaviors of propylene polymerization under atmospheric pressure and the influence of electron donors on the activity and the isotacticity of the catalyst were investigated.
在这种包合物中有机小分子是电子的受体，而碳笼则为电子的给体，这与金属富勒烯包合物恰恰相反。
The dopant is an electron acceptor and the cage is a donor which is different from the case of metallofullerenes.
通过对一种1,4 -二醚为内给电子体的聚丙烯催化剂进行性能研究，揭示此类催化剂的一些特殊性能。
The internal donor is 1, 4-diether in this polypropylene catalyst, and this catalyst has some special properties.
采用CIS方法研究体系的激发态情况，发现给体的给电子能力和分子平面性共同决定激发能的大小。
The excited states were also investigated by using CIS method, the transition energy was determined by the ability of donor giving electrons and the molecular plain.
采用CIS方法研究体系的激发态情况，发现给体的给电子能力和分子平面性共同决定激发能的大小。
The excited states were also investigated by using CIS method, the transition energy was determined by the ability of donor giving electrons and the molecular plain.
应用推荐