网络例句
索烃类
- 与 索烃类 相关的网络例句 [注:此内容来源于网络,仅供参考]
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It could be observed that the [2] catenanes showed absorption maxima in 438. 0nm, 463. 0nm and 517. 0nm respectively, due to the interaction between calix [4] arenocrowns and the bipyridinium ring units.
另外,通过紫外-可见光谱,研究杯[4]并冠醚[2]索烃类化合物中的电子转移情况,发现组装后生成的杯[4]芳烃[2]索烃类化合物中,由于富电子的杯[4]芳烃冠醚和缺电子的联吡啶盐之间π-π堆积相互作用依次增强,它们分别在438.0nm,463.0nm,517.0nm的位置产生新的吸收峰。
- 推荐网络例句
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I can not make it blossom and suits me
我不能让树为我开花
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When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.
当温度高于 80 °C 左右时,滚道或滚动元件褪色是很常见的特征。
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The lawyer's case blew up because he had no proof.
律师的辩护失败,因为他没有证据。