From Alkaline Earth Ion Aggregates via Transition Metal Coordination Polymer Networks towards Heterometallic Single Source Precursors for Oxidic Materials

Abstract

Heterometallic oxides are used as materials in many applications, e.g. from ferroelectrics to superconductors. Making these compounds usually requires high temperatures and long reaction times. Molecular precursors may contribute to render their processing shorter and accessible at lower temperatures, thus cheaper in energy and time. In this review article, different approaches toward oxide materials will be shown, starting with homometallic clusters and coordination polymers and highlighting recent results with heterometallic single source precursors. On the way to the latter, we came across many exciting results which themselves allowed applications in different fields. This work will give an overview on how these fields were brought together for the current mixed metallic compounds as precursors for heterometallic oxides.

Silver coordination compounds with antimicrobial properties

“…In order to further elucidate the molecular mechanism of action, we have started to investigate the interaction of silver ions with amino acids and peptides . Furthermore, we are developing new silver‐based compounds with other ligands in order to enlarge our pool of compounds to be tested as antimicrobial agents …”

“…[29,30] Furthermore, we are developing new silver-based compounds with other ligands in order to enlarge our pool of compounds to be tested as antimicrobial agents. [31][32][33][34]…”

Polymorph of Dibenzo‐24‐Crown‐8 and its Mercury Complex

“…We use non-cyclic and cyclic polyethereal ligands in order to synthesize and characterize new metal halide compounds, which can be used as precursors for oxide materials. [24][25][26][27] In this context, as well as for comparison with the literature mercury compounds mentioned above, and also comparing the conformation of the ligand upon coordination with its free form, we tested 1 as ligand for HgI 2 . Indeed, the ligand 1 as well as the starting compound HgI 2 has two polymorphic forms, the red and the yellow HgI 2 in the latter case.…”

Silver coordination polymers with isonicotinic acid derived short polyethylene glycol – Synthesis, structures, anion effect and solution behavior

“…Such long, symmetrically as well as asymmetrically substituted ligands derived from oligoethylene glycols, of which Li1 is one member, can also be used to generate other metal ion complexes [27][28][29][30][31]. Among those, it might be interesting to highlight the heterobimetallic compounds which are low-temperature precursors leading to mixed metal oxide materials upon combustion [32].…”