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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
Synthesis of four novel pendant armed macrocyclic ligands and their interaction with lanthanide(III) cations
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The ability of La3+ ions to form stable complexes with four novel pendant-armed NxOy-macrocycles derived from 2,6-bis(2-formylphenoxymethyl)pyridine, L1, L2, L3, and L4, has been studied.
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The pendant-armed ligands were then synthesized by the alkylation of the free-NH groups with p-(L1 and L3) and o-nitrobenzyl bromide (L4), and 2-chloromethylpyridine chlorohydrate (L2).
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The number of complexes obtained from the pendant-armed macrocycles is lower than that of the (unsubstituted) parent ones, suggesting that the introduction of pendant arms in the macrocyclic skeletons increases the selectivity of the ligands.
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In the series of two-armed chromosomes, there is a pair of large submetacentric ones, while there are two pairs of large subtelocentric chromosomes in the one-armed series.
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| | After the breakout of the War of Resistance Against Japan, people of Guangdong, under the leadership of the Communist Party of China, set up successively a number of anti-Japanese guerrillas such as Dengjiang, Qiongya, Zhujiang, Hanjiang and South Route guerrillas, which were, in time, known as South China Anti-Japanese Column. As an anti-Japanese banner for national liberation in the southern most part of China, the Column resisted the 60% of the Japanese troops stationed in South China and made this area"... | | 抗日战争爆发后,广东人民抗日武装在中国共产党的领导下,先后建立了东江、琼崖、珠江、韩江和南路抗日游击纵队.后来统称为“华南抗日纵队”。在祖国的南疆树起了一面抗日民族解放的旗帜,抗击着华南地区百分之六十的日军,“成为敌后三大战场之一”;配合了东南亚各国人民的对日作战,抢救了大批爱国人士、文化界人士和国际友人,促进了抗日民族统一战线和国际反法西斯统一战线的发展,为抗日战争和世界反法西斯战争的胜利作出了贡献。 | | 文摘来源 | | Abstract The writer systematicly analyse the whole process of corps' birth, death and renewal.The historical ma tenal owns some legend colourness . | | 1938年冬,中共江北特季遵照中共中央和毛泽东同志关于独立自主地发展敌后抗日游击战争的指示,派人深入如东海滨盐区,发动盐民群众.成立盐民抗日协会。在此基础上.组建了由中共党员掌握的如皋盐民自卫队、这支盐民武装受到国民党顽固势力的重重包围.遭到多次算计和破坏.一度垮散,但终于东山再起。本文详悉介绍了她诞生、成长、夭折、复起的全过程,史料本身带有一定的传奇色彩。 | | 文摘来源 | | The local strength groups had played an active part in the Anti-Japanese war.Not only it was a important component of Anti-Japanese armed force of China, but along with communist party of China and democratic powers had made certain contributions to upholding the national united front for Anti-Japanese and a situation of entire nation fighting. | | 地方实力派在抗日战争中发挥了积极作用,它不仅是中国抗日武装力量的重要组成部分,同时还与中国共产党、民主势力一道,为维护抗日民族统一战线和全民族抗战的局面作出了一定程度的贡献。 | | 文摘来源 | |   | | << 更多相关文摘 |
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