Heteracalixaromatics are an emerging generation of macrocyclic host molecules in supramolecular chemistry. As a typical example of heteracalixaromatics, oxacalix[2]arene[2]triazine adopts a shape-persistent 1,3-altern...Heteracalixaromatics are an emerging generation of macrocyclic host molecules in supramolecular chemistry. As a typical example of heteracalixaromatics, oxacalix[2]arene[2]triazine adopts a shape-persistent 1,3-alternate conformation and can be easily functionalized. Taking it as a platform, a series of oxacalix[2]arene[2]triazine-based amphiphiles bearing long alkyl chains were synthesized through post-macrocyclization functionalization or 3＋1 fragment coupling protocols. The self-assembly behavior of these arnphiphiles in a mixture of tetrahydrofuran （THF） and water was investigated. Dynamic light scattering （DLS） measurements revealed that the size of the self-assembled aggregates is dependent on the structure of the amphiphiles. The long alkyl chain substituents and/or interrnolecular hydrogen bonds were found to promote the self-assembly.展开更多
基金supported by the National Natural Science Foundation of China(21272239,91427301,21521002)Ministry of Science and Technology(2013CB834504)
文摘Heteracalixaromatics are an emerging generation of macrocyclic host molecules in supramolecular chemistry. As a typical example of heteracalixaromatics, oxacalix[2]arene[2]triazine adopts a shape-persistent 1,3-alternate conformation and can be easily functionalized. Taking it as a platform, a series of oxacalix[2]arene[2]triazine-based amphiphiles bearing long alkyl chains were synthesized through post-macrocyclization functionalization or 3＋1 fragment coupling protocols. The self-assembly behavior of these arnphiphiles in a mixture of tetrahydrofuran （THF） and water was investigated. Dynamic light scattering （DLS） measurements revealed that the size of the self-assembled aggregates is dependent on the structure of the amphiphiles. The long alkyl chain substituents and/or interrnolecular hydrogen bonds were found to promote the self-assembly.
