Kinetically controlled self-assembly of pseudorotaxanes on crystallization.
作者： Brian H. Northrop , Saeed J. Khan , J. Fraser Stoddart
DOI: 10.1021/OL0606177
关键词: Polymer chemistry 、 Photochemistry 、 Chemistry 、 Crystallization 、 Diffusion 、 Ether 、 Solid-state 、 Self-assembly 、 Derivative (chemistry)
摘要: Mixing of equimolar amounts cyclobis(paraquat-p-phenylene) (CBPQT4+) with a bis-4-methylphenyl ether (MPE twice) 1,5-dioxynaphthalene (DNP) derivative in MeCN/CH2Cl2 (3:1) results the formation [2]pseudorotaxane which, on crystallization, yields [4]pseudorotaxane solid state that is stabilized by multiple [C−H···F] interactions: mixture same components 1:3 ratio affords crystalline after vapor diffusion methyl-tert-butyl into solution these (3:1).
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