25,26,27,28-Tetra­propoxycalix[4]arene-5,17-dicarbonitrile

In the title compound, C(42)H(46)N(2)O(4), both crystallographically independent mol­ecules display a 1,3-alternate conformation. Their crystal packing is stabilized by non-classical C—H⋯N hydrogen bonds. The dihedral angles between the planes of the aromatic rings and the mean plane through the met...

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Detalles Bibliográficos
Autores principales: Budka, Jan, Eigner, Václav, Holakovský, Roman, Kovaříček, Petr, Loužilová, Tereza
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2010
Materias:
Organic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2979721/
https://www.ncbi.nlm.nih.gov/pubmed/21579836
http://dx.doi.org/10.1107/S1600536810002242
Descripción
Sumario:In the title compound, C(42)H(46)N(2)O(4), both crystallographically independent mol­ecules display a 1,3-alternate conformation. Their crystal packing is stabilized by non-classical C—H⋯N hydrogen bonds. The dihedral angles between the planes of the aromatic rings and the mean plane through the methyl­ene C atoms bridging the aromatic rings are 78.10 (13), 80.74 (14), 81.89 (12) and 79.05 (14)° for the first mol­ecule, and 71.65 (11), 76.60 (13), 77.97 (14) and 74.76 (13)° for the second mol­ecule. Both mol­ecules have three C atoms of one prop­oxy chain disordered over two set of sites; the site-occupancy factors are 0.7/0.3 and 0.6/0.4, respectively.

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