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Controlling the confinement and alignment of fullerene C-70 in para-substituted calix[5]arenes

机译:控制富勒烯C-70在对位取代杯[5]芳烃中的封闭和排列

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摘要

In toluene fullerene C-70 forms 2:1 complexes with p-benzylcalix[5]arene (1) and p-phenylcalix[5]arene (2), [C-70 subset of 1(2)].6 (C7H8) and [C-70 subset of 2(2)].7 (C7H8). The fullerene molecules are completely shrouded by two calix[5]arenes in addition to terminal benzyl groups from other supermolecules, [C-70 subset of 1(2)], and solvent. Within the capsule-like supermolecules the calixarenes have distinctly different arrangements relative to the principal axis of the fullerene; for [C-70 subset of 1(2)].6(C7H8) the oxygen planes of the two calixarenes are skewed by 37.0 and 47.5 degrees, whereas in [C-70 subset of 2(2)].7(C7H8) the principal axes of the fullerene and the two encapsulating calixarenes are more closely aligned with the corresponding angles at 9.7 and 8.6 degrees, and features a pentaphenyl inter-calixarene embrace. The Hirshfeld surfaces of these two complexes have been investigated for a detailed understanding of the orientation and nature of interactions of C-70 with the cavitand-type molecules and toluene.
机译:在甲苯富勒烯C-70中与对苄基杯[5]芳烃(1)和对苯杯[5]芳烃(2)形成2:1配合物,[C-70是1(2)的子集] .6(C7H8)和[2(2)的C-70子集] .7(C7H8)。除其他超分子,[C-70 1(2)的子集]和溶剂的末端苄基外,富勒烯分子还被两个杯[5]芳烃完全覆盖。在胶囊状超分子中,杯芳烃相对于富勒烯的主轴线具有明显不同的排列。对于[C-70的1(2).. 6(C7H8)子集,两个杯芳烃的氧平面偏斜37.0和47.5度,而在[C2的2(2)的C-70子集] .7(C7H8)富勒烯的主轴和两个封装的杯芳烃的主轴与相应的角度(分别为9.7和8.6度)更紧密对齐,并且具有五苯基间杯芳烃包围物。已经研究了这两种配合物的Hirshfeld表面,以详细了解C-70与空泡型分子和甲苯的相互作用的方向和性质。

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