Diaqua[5,5′-dicarboxy-2,2′-(propane-1,3-diyl)bis(1H-imidazole-4-carboxylato)]manganese(II)

Abstract

The complex mol­ecule of the title compound, [Mn(C13H10N4O8)(H2O)2] or [Mn(H4pbidc)(H2O)2] (H6pbidc = 2,2′-(propane-1,3-di­yl)bis­(1H-imidazole-4,5-dicarb­oxy­lic acid), has 2 symmetry with the twofold rotation axis running through the Mn2+ cation and the central C atom of the propanediyl unit. The cation is six-coordinated by two N atoms and two O atoms from one H4pbidc2− anion and two water O atoms in a considerably distorted octa­hedral coordination. In the crystal, adjacent mol­ecules are linked through O—H⋯O and N—H⋯O hydrogen bonds into a three-dimensional network.

Synthesis, crystal structure and bovine serum albumin–binding studies of a new Cd(II) complex incorporating 2,2′-(propane-1,3-diyl)bis(1H-imidazole-4,5-dicarboxylate)

“…For example, [Ca(H 4 pbidc)(H 2 O) 3 ]·4H 2 O, [Ni(H 4 pbidc)(H 2 O) 2 ]·2H 2 O and [Mn(H 4 pbidc)(H 2 O) 2 ] are mononuclear complexes in which each tetradentate H 4 pbidc 2− anion only coordinate to one metal ion in N,O-chelating fashion. 18–20 These results indicate that changing the metal ion can influence the coordination mode of H 4 pbidc 2− anion and thus influence the structures and properties of the resulting complexes. The BSA-binding properties of complex 1 were investigated by fluorescence measurements.…”

“…Through investigation of the literature, we found that four complexes involving H 6 pbidc ligand, including [Mn(H 4 pbidc)(H 2 O) 2 ], 18 [Ni(H 4 pbidc)(H 2 O) 2 ]·2H 2 O, 19 [Ca(H 4 pbidc)(H 2 O) 3 ]·4H 2 O 20 , and [Co(H 4 pbidc)(pyridine)]·4,4′-bipyridine, 21 have been reported. In this work, a new complex [Cd(H 4 pbidc)(H 2 O)] n ( 1 ) with different compositions and architectures from those of the reported complexes can be obtained by using CdCl 2 ·2.5H 2 O and H 6 pbidc as starting materials.…”

“…Through the solvothermal reaction of CdCl [18][19][20] These results indicate that changing the metal ion can influence the coordination mode of H 4 pbidc 2− anion and thus influence the structures and properties of the resulting complexes. The BSA-binding properties of complex 1 were investigated by fluorescence measurements.…”

“…Through investigation of the literature, we found that four complexes involving H 6 pbidc ligand, including [Mn(H 4 pbidc)(H 2 O) 2 ], 18 Table 3. Hydrogen bonds for complex 1.…”

“…To the best of our knowledge, only four mononuclear complexes based on H 6 pbidc ligand have been reported. 18–21 In order to further enrich the categories and numbers of complexes based on this ligand, we continue the use of H 6 pbidc as a ligand to self-assemble with CdCl 2 ·2.5H 2 O and have successfully obtained a new one-dimensional (1D) complex [Cd(H 4 pbidc)(H 2 O)] n . In addition to the determination of the single-crystal structure of complex 1 , its interaction with bovine serum albumin (BSA) was also investigated.…”