From Discrete Complexes to Metal-Organic Layered Materials: Remarkable Hydrogen Bonding Frameworks.

ABSTRACT: A series of metal-organic coordination complexes based on alkaline-earth metal centers [Mg(II), Ca(II), and Ba(II)] and the ligand 5-aminoisophthalate (aip2-) revealed notable structural diversity, both in the materials' dimensionality and in their hydrogen bonding networks: [Mg(H2O)6]?[Mg2(Haip)(H2O)10]?(Haip)?3(aip)?10(H2O) (1) and [Mg(aip)(phen)(H2O)2]?(H2O) (2) were isolated as discrete complexes (0D); [Ca(aip)(H2O)2]?(H2O) (3), [Ca(aip)(phen)(H2O)2]?(phen)?(H2O) (4), and [Ba2(aip)2(phen)2(H2O)7]?2(phen)?2(H2O) (5) revealed metal-organic chain (1D) structures, while the [Ba(aip)(H2O)] (6) showed a metal-organic layered (2D) arrangement. Furthermore, most of these metal-organic coordination materials revealed interesting thermal stability properties, being stable at temperatures up to 450 °C.

SUBMITTER: Queiros C 

PROVIDER: S-EPMC7146137 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature