Inclusion Complexes of the Bicyclic Aryl‐Substituted Sulfur‐Nitrogen Compounds Ar−CN
<sub>5</sub>
S
<sub>3</sub>
with Fluorocarbon and Hydrocarbon Aromatics
作者:Carsten Knapp、Enno Lork、Rüdiger Mews、Andrey V. Zibarev
DOI:10.1002/ejic.200300951
日期:2004.6
Inclusion compounds with a stoichiometry of 2:1 were prepared from 7-Ar-1λ4,3λ4,5λ4-trithia-2,4,6,8,9-pentaazabicyclo[3.3.1]nona-1(9),2,3,5,7-pentaenes Ar−CN5S3 and hexafluorobenzene (Ar = C6H5, 4-CH3C6H4, 4-C6H5C6H4 and 2,6-F2C6H3) and toluene (Ar = C6F5), by crystallization of the bicycles from the corresponding aromatics. Similar to the pure host compounds, the bicycles in the inclusion compounds form
化学计量比为 2:1 的包合物由 7-Ar-1λ4,3λ4,5λ4-trithia-2,4,6,8,9-pentaazabicyclo[3.3.1]nona-1(9),2,3 制备,5,7-戊烯 Ar−CN5S3 和六氟苯(Ar = C6H5、4-CH3C6H4、4-C6H5C6H4 和 2,6-F2C6H3)和甲苯(Ar = C6F5),通过从相应的芳烃中结晶出双环。与纯主体化合物类似,包合物中的双环形成中心对称二聚体。二聚体在纯主体化合物中的堆积由芳基上的取代基的相互作用决定,而在包合物中由主体和客体的相互作用决定。主客体芳环的平行位移排列是芳烃-聚氟芳烃类型的非共价 π 堆积相互作用的典型特征。苯(与六氟苯相反)无法与标题环(Ar = C6H5)形成包合物表明包合物是由芳烃-多氟芳烃类型的 π 堆积相互作用驱动的。从苯和六氟苯的 1:1 摩尔混合物结晶标题双环 (Ar = C6H5)