Unexpectedly low affinity of aromatic disulfides for π-stacking interactions of the arene–polyfluoroarene type
作者:Irina Yu. Bagryanskaya、Yuri V. Gatilov、Enno Lork、Rüdiger Mews、Andrey V. Zibarev
DOI:10.1016/j.jfluchem.2006.02.007
日期:2006.6
(stoichiometry 1:2, complex 4) and diphenyl disulfide (3) with octafluoronaphthalene (stoichiometry 2:1, complex 5) were prepared followed by XRD characterization. In the crystal lattice of 1, face-to-face and face-to-edge PhH/PhF orientations of neighboring rings were observed together with face-to-edge PhF/PhF orientations. For the face-to-face PhH/PhF orientation, the large offset of PhH and PhF groups excludes
由C 6 F 5 SCl和C 6 H 5 SSiMe 3定量地合成了1,2,3,4,5-五氟二苯基二硫化物(1)。二硫化物1的均晶体和1,1',2,2',3,3',4,4',5,5'-十氟二苯基二硫化物(2)与萘的共晶体(化学计量比为1:2,制备了八氟萘的配合物4)和二苯基二硫化物(3)(化学计量比2:1,配合物5),然后进行了XRD表征。在1的晶格中,面对面和面对面Ph H / Ph F观察到相邻环的取向和面对面的Ph F / Ph F取向。对于面对面的Ph H / Ph F取向,Ph H和Ph F基团的较大偏移量排除了其π堆叠相互作用,这在该领域是非常不典型的。4的晶格揭示了芳烃-聚氟芳烃类型的标准π堆积相互作用。在4个晶格中,每个Ph F环与萘交替相互作用,而在5个中,两个二硫化物3被一个八氟萘桥接,其中只有一个Ph H每个二硫键的环与聚氟芳烃π系统相互作用。但是,相邻分子的大偏移量