Two Hydrogen-Bonded Supramolecular Structures Based on C -alkylcalix[4]resorcinarene and 4,4 ′-Bipyridine

AbstractSelf-assembly of the bowl-shapedC-alkylcalix[4]resorcinarene (alkyl  = –iBu, CBCR; –CH2CH2Ph, CPCR) with the bifunctional spacer 4,4 ′-bipyridine (bipy) in alcohol solvent was investigated. Co-crystallization of CBCR with bipy in ethanol afforded a one-dimensional compound of CBCR·bipy·3EtOH (1). Heating a mixture of CPCR and bipy in ethanol led to the isolation of the compound CPCR·2bipy·EtOH (2), which has a one-dimensional wave-like polymer structure. Compounds1 and2 both crystallize in the triclinic space groupP\(\bar{1}\), witha  =  13.1615(2),b = 14.5201(3),c = 16.9082(4) Å,α =  111.102(1)°,β = 96.976(1)°,γ = 103.979(1)°, andZ = 2 for1, anda  =  11.5175(4),b = 12.5727(5),c = 24.6775(10) Å,α =  83.744(2)°,β = 89.306(2)°,γ = 71.110(2)°, andZ = 2 for2.Graphic AbstractTwo supramolecular structures based on C-alkylcalix[4]resorcinarene and 4,4 ′-bipyridine molecules have been synthesized and studied.
Source: Journal of Chemical Crystallography - Category: Chemistry Source Type: research
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