Self-assembly and host-guest interaction of metallomacrocycles using fluorescent dipyrazole linker with dimetallic clips

Guo Hong Ning, Liao Yuan Yao, Li Xia Liu, Ting Zheng Xie, Yi Zhi Li, Yu Qin*, Yuan Jiang Pan, Shu Yan Yu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)

Abstract

By employing diimine ligands coordinated dimetallic clips ([(bpy) 2Pd2(NO3)2](NO3) 2 or [(phen)2Pd2(NO3) 2](NO3)2, where bpy = 2,2′-bipyridine, phen = 1,10-phenanthroline) as the corner and anthracene-, naphthalene-, and benzene-based dipyrazolate dianions as the linker, a series of positively charged metallomacrocycles ([M4L2]4+ or [M 8L4]8+) have been synthesized through a directed self-assembly method in aqueous solution. Every macrocycle has a cavity to bind solvent molecules or anions. The structures were characterized by elemental analysis, 1H and 13C NMR, electrospray ionization mass spectrometry, and single crystal X-ray diffraction analysis for compound 1 4PF6 (1 = {[(bpy)Pd]4L1 2}4+), 3 4PF6 ·8CH3CN· H2O (3 = {[(bpy)Pd]4L22} 4+), and 7 4PF6·6H2O (7 = {[(bpy)Pd]4L52}4+). The 1:1 host-guest complexation for anthracene-based dipyrazolate-bridged macrocycles with aromatic guests was investigated via UV-vis and fluorescent titration.

Original languageEnglish
Pages (from-to)7783-7792
Number of pages10
JournalInorganic Chemistry
Volume49
Issue number17
DOIs
Publication statusPublished - 6 Sept 2010
Externally publishedYes

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