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

Molecules

Luís Cunha-Silva¹  AnaM. G. Silva¹  Baltazar de Castro²  Carla Queirós² 

[1] Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal;;LAQV/REQUIMTE &

关键词: metal–organic framework;    alkaline-earth metals;    benzenedicarboxylate ligands;    crystal structure;    structural diversity;    hydrogen bonding networks;   

DOI  :  10.3390/molecules25061353

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown