A calixarene-based coordination cage as an efficient luminescent sensor for Fe3+, MnO4−, NB and 2,4-DNP in aqueous medium

A luminescent coordination cage formulated as {Mg 24 (TC4A) 6 (BTC) 8 (H 2 O) 6 } ( SWU-2 , H 4 TC4A = p-tert -butylthiacalix[4]arene, H 3 BTC = 1,3,5-benzenetricarboxylic acid) was successfully synthesized by the assembly of Mg 4 -TC4A units with BTC ligands.