5,11,17,23-Tetra-tert-butyl-25,26,27,28-tetra­propyn­yloxy-2,8,14,20-tetra­thia­calix[4]arene

The title compound [systematic name: 5,11,17,23-tetra-tert-butyl-25,26,27,28-tetra­propyn­yloxy-2,8,14,20-tetra­thia­calix[4]arene], C(52)H(56)O(4)S(4), is an alkyl­ated product bearing four propyne groups at the lower rim of a 5,11,17,23-tetra-tert-butyl-tetrathia­calix[4]arene. The mol­ecule is lo...

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Detalles Bibliográficos
Autores principales: Li, Xiong, Han, Hong-Wei, Meng, Xiang-Gao
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2009
Materias:
Organic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2972022/
https://www.ncbi.nlm.nih.gov/pubmed/21578745
http://dx.doi.org/10.1107/S1600536809043992
Descripción
Sumario:The title compound [systematic name: 5,11,17,23-tetra-tert-butyl-25,26,27,28-tetra­propyn­yloxy-2,8,14,20-tetra­thia­calix[4]arene], C(52)H(56)O(4)S(4), is an alkyl­ated product bearing four propyne groups at the lower rim of a 5,11,17,23-tetra-tert-butyl-tetrathia­calix[4]arene. The mol­ecule is located on a crystallographic twofold rotation axis, running through two S atoms and perpendicular to the long axis of the mol­ecule. The four propyne groups, located in an alternate fashion above and below the mean plane of the four S atoms, are almost parallel to the calixarene long axis. The dihedral angle between the two crystallographically independent benzene rings is 86.77 (14)°. Two tert-butyl groups are disordered over two positions with site occupancies of 0.59 (2) and 0.41 (2).

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