A binuclear Cu(II) metallacycle capable of discerning between pyrazine and its different methyl-substituted derivatives based on reversible intracage metal-ligand binding.
Squashy cage: A flexible, spongelike, and reversible metal-binding Cu(2)L(2) cage that can adjust its internal space in response to pyrazine and its derivatives based on a recognition sequence of pyrazine, 2,5-dimethylpyrazine, and 2-methylpyrazine (see figure) is described.
Hou
Gui-Ge
GG
College of Chemistry, Chemical Engineering and Materials Science, Engineering Research Center of Pesticide and Medicine Intermediate Clean Production, Ministry of Education, Shandong Normal University, Jinan, 250014, PR China.
Ma
Jian-Ping
JP
Sun
Ting
T
Dong
Yu-Bin
YB
Huang
Ru-Qi
RQ