索烃

The flexible H〓bta triacid ligand in this work was demonstrated to form 1D polycatenaned ladder (15) with cis, trans, trans.

柔性羧酸配体采用cis，trans，trans构象，形成了一维梯状聚索烃（15）。

The assembled tweezer has been successfully utilized to direct the self-assembly of a series of dynamic [2]catenanes from three components via three different non-covalent interactions.

通过三种不同的非共价键作用力，这种分子镊通过超分子识别和组装的原理被成功地用于构建一系列新颖的三组分动态[2]索烃。

Its synthetic strategies, structural characters, properties and applications to the self-assembly of rotaxane s and catenanes are reviewed.

详细描述了盒状主体缺π电子联吡啶大环CPQT的结构和性质，总结比较了它的各种制备方法，并对其与富π电子氢醌醚链衍生物自组装合成索烃、轮烷和准轮烷等方面的应用进行了综述

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。

The organic molecules with it-conjugated structure are ideal structural units for molecular wires. The asymmetric electronic structure of the molecular junctions is the basic reason for molecular rectification. Rotaxanes and catenanes are ideal structural units for molecular switches. The operation principle of molecular field effect transistors is quantum tunneling, the metal/insulator/mental tunneling is mainly.

具有π-共轭结构的有机分子体系是构造分子导线的理想单元；分子结的电子结构不对称性是分子具有整流特性的根本原因；轮烷和索烃是构造分子开关的理想单元之一；分子场效应晶体管的工作原理是量子隧穿，主要是金属－绝缘体－金属间的隧穿效应。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。