Xiao-Ping Yang, Da-Ming Du, Qi Li, Thomas C. W. Mak and Henry N. C. Wong
The new host molecule 1,4,15,18-tetrahydro-1,4,15,18-tetraoxodibenzo[b,h]tetraphenylene forms inclusion complexes with specific guest molecules, exhibiting two distinctly different types of host lattices whose construction is dictated by intermolecular, face-to-face π···π interactions between benzoquinone rings across inversions centres.