Synthesis and characterization of a luminescent and fully rigid tetrakisimidazolium macrocycle.
A fully rigid tetrakisimidazolium macrocycle was synthesized in good yield for the first time through direct [2+2] cyclization. The structure was characterized by NMRs, MS and X-ray diffraction analysis. This cationic, fluorescent macrocycle with four hydrogen bond donors pointing inward the large and rigid cavity may serve as an anion receptor, a fluorescent material and a building block for supramolecular assembly.
Key Laboratory of Green Chemistry and Technology of Ministry of Education, and College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, PR China.
Hongjun
H
Zhou
Zhi
Z
Wang
Chao
C
Gao
Jingsong
J
You
Ge
G
Gao
D003500:Cyclization; D007093:Imidazoles / Q000138:chemical synthesis* / Q000737:chemistry*; D049449:Luminescence; D047028:Macrocyclic Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure
D007093:Imidazoles; D047028:Macrocyclic Compounds