Structural diversity and luminescent sensing of three coordination polymers based on the hydrolysates of N,N′-bis(3,5-dicarboxylatophenyl)pyromelliticdi-imide).

Based on the hydrolysates of N , N ′-bis(3,5-dicarboxylatophenyl)pyromelliticdi-imide) (H 4 L) and 1,3-bis(imidazol-1-ylmethyl)benzene (bimb), three coordination polymers, namely, {[Zn(BTC) 0.5 (bimb)]·4H 2 O} n ( 1 ), [Cu(BTC) 0.5 (bimb)] n ( 2 ), and {[Cd(AIP)(H 2 O)]·H 2 O} n ( 3 ), have been obtained under solvothermal conditions. The possible hydrolysis mechanism of H 4 L was investigated here. Structural analyses reveal that complex 1 is a 3D (4,4)-c {6 4 .8 2 }{6 6 } 2 - bbf net. Complex 2 displays a 2D 4-c {3 2 .6 2 .7 2 }- kgm sheet. While complex 3 exhibits a 3D (3,6)-c {4.6 2 } 2 {4 2 .6 10 .8 3 }- rtl net based on binuclear {Cd 2 (COO) 4 } SBUs. Besides, luminescent sensing investigation indicated that 1 and 3 exhibit highly sensitive and selective sensing of chromate anions in aqueous solution. [ABSTRACT FROM AUTHOR]