We have obtained three-component systems: the complexes comprising of two different benzenoid hydrocarbons together with one molecule of 7,7,8,8-tetracyanoquinodimethane (TCNQ). The X-ray single-crystal structures of naphthalene–perylene–TCNQ and pyrene–perylene–TCNQ revealed that they form face-to-face stacking between perylene and TCNQ molecules containing another hydrocarbon as a guest in the structure. We also present a pyrene–TCNQ complex with two pyrene moieties acting in similar way. In this system, charge transfer is far more efficient than in any other complexes of TCNQ with benzenoid hydrocarbons. Additionally, we have also obtained as references pyrene–TCNQ, chrysene–TCNQ, phenanthrene–TCNQ and naphthalene–TCNQ with 1 : 1 molecular ratios. These systems were also used to estimate the degrees of charge transfer.
我们获得了三组分系统:由两种不同的苯基烃和一分子7,7,8,8-四
氰基
喹啉二
甲烷(TCNQ)组成的复合物。
萘-
荧蒽-TCNQ和
芘-
荧蒽-TCNQ的X射线单晶结构揭示了它们在
荧蒽和TCNQ分子之间形成了面对面堆叠的结构,包含另一种烃作为客体。我们还展示了一个
芘-TCNQ复合物,其中两个
芘部分以类似方式作用。在该系统中,电荷转移的效率远高于任何其他与苯基烃的TCNQ复合物。此外,我们还获得了作为参考的
芘-TCNQ、菊烯-TCNQ、
菲-TCNQ和
萘-TCNQ,分子比为1:1。这些系统也用于估计电荷转移的程度。