Central metal ion of MOFs modulated fluorescence detection of Fe3+

A new π-conjugated bridging-type dicarboxylic acid, 3′,5′-bis(2-methyl-1H-imidazol-1-yl)[1,1′-biphenyl]-3,5-dicarboxylic acid (H2L), was designed and synthesized to construct fluorescent metal-organic frameworks (MOFs). The two MOFs, named [ZnL]·1.5H2O (1) and [SrL]n (2), were successfully...