Research Article: C-Methyl­calix[4]resorcinarene–1,4-bis­(pyridin-3-yl)-2,3-diaza-1,3-butadiene (1/2)

Date Published: February 01, 2012

Publisher: International Union of Crystallography

Author(s): Konstantin A. Udachin, Md. Badruz Zaman, John A. Ripmeester.


In the title compound, 2C12H10N4·C32H32O8, the calixarene adopts a rctt conformation with dihedral angles of 138.40 (1) and 9.10 (1)° between the opposite rings. The dihedral angles between the rings of the pyridine derivative are 8.80 (1) and 9.20 (1)°. In the crystal, adjacent C-methylcalix[4]resorcinarene molecules are connected into columns parallel to [010] by O—H⋯O hydrogen bonds. O—H⋯N hydrogen bonds between the axial phenoxyl groups and bipyridine molecules link the columns into sheets parallel to (011), which are connected by O—H⋯N hydrogen bonds. Further O—H⋯N hydrogen bonds link the bipyridine and C-methylcalix[4]resorcinarene molecules, giving rise to a three-dimensional network.

Partial Text

For the synthesis and structure of the 1,4-di-3-pyridyl-2,3-diaza-1,3-butadiene ligand, see: Ciurtin et al. (2001 ▶). For coordination polymers of 1,4-di-3-pyridyl-2,3-diaza-1,3-butadiene structures, see: Dong et al. (2004 ▶). For the structure of C-methyl­calix[4]resorcinarene, see: Kuzmicz et al. (2010 ▶). For C-methyl­calix[4]resorcinarene co-crystal structures, see: MacGillivray et al. (2001 ▶); Ma & Coppens (2004 ▶); Momose & Bosch (2010 ▶). For the stereochemistry of C-methyl­calix[4]resorcinarene, see: Moore & Matthews (2009 ▶).