Abstract
A series of Thiacalix[n]thiophene and Thiacalix[n]dithienothiophene (Thiacalix[n]DTT) have been synthesized by a facile palladium-catalyzed coupling reactions using dibromothieno- or dibromoDTT derivatives with (nBu3Sn)2S in good yield. X-ray analysis of thiacalix[4]- and thiacalix[5]DTT revealed its symmetrical structure having alternate and folding arrangement of DTT units, respectively. Furthermore, thiacalix[n]DTT undergoes complexation with C60 and C70 both in solution and in the solid state.
Graphical Abstract
![](/cms/asset/9616802e-8c7f-41a2-a26f-37d76e2eaeb4/gpss_a_1603723_uf0001_c.jpg)
Acknowledgement
The authors would like to thank Dr. Masafumi Ueda (Kitasato University) and Dr. Kenji Yoza (Bruker AXS.) for helpful discussions.