Supramolecular Metal−Organometallic Coordination Networks Based on Quinonoid π-Complexes

Abstract

The use of organometallic pi-complexes in the coordination-directed self-assembly of polymeric structures is a new area with many potential applications. Supramolecular metal-organometallic coordination networks (MOMNs), which are described herein, consist of metal ion or metal cluster nodes connected by bifunctional "organometalloligands" that serve as spacers. The organometalloligand utilized in this work is the stable anionic complex (eta(4)-benzoquinone)Mn(CO)(3)(-) (p-QMTC), which binds through both quinone oxygen atoms to generate MOMNs having both backbone and pendant metal sites. In many cases the MOMNs are obtained as neutral and thermally stable solids, with molecular structures that depend on the geometrical and electronic requirements of the metal nodes, the solvent, and the presence of organic spacers. Redox-active quinone-based organometallic pi-complexes permit the construction of an impressive range of coordination network architectures and hold much promise for the development of functional materials.

One-Pot Synthesis, Crystal Structures and Thermal Properties of Two Three-Dimensional Cobalt(II) Complexes

“…[1][2][3][4][5][6][7][8][9] It is widely acknowledged that the coordinative bonding is the primary interaction to sustain the network, while supramolecular interactions, such as hydrogen bonding, π-π stacking interactions and Van der Waals forces are also believed to play important roles. [10][11][12][13][14][15][16][17] To date, a variety of supramolecular polymers with complicated architectures and interesting properties based on different bridging ligands especially aromatic polycarboxylate ligands have been synthesized successfully.…”

Synthesis, X-ray crystal structure, thermal and solution studies of a centrosymmetric metal–organic polymer based on proton transfer methodology

“…A variety of factors can influence the self-assembly of coordination frameworks making desired topologies and specific properties a difficult challenge [1][2][3][4][5]. Construction of coordination polymers with new network motifs is of interest for the development of new functional materials and in the fundamental studies of crystal engineering and supramolecular chemistry [6][7][8][9][10][11][12][13].…”

Chiral Heterocyclic Ligands. XI. Self-assembly and X-ray Crystal Structures of Chiral Silver Coordination Polymers of (S)-(–)-Nicotine

“…For this purpose silver(I) salts have been extensively used [6,7]. Higher-level bridging components lead to more complex two-and three-dimensional networks which may possess porous internal cavities [8][9][10][11][12][13] or involve complex interpenetrated nets [14][15][16][17][18].…”

“…For this purpose silver(I) salts have been extensively used [6,7]. Higher-level bridging components lead to more complex two-and three-dimensional networks which may possess porous internal cavities [8][9][10][11][12][13] or involve complex interpenetrated nets [14][15][16][17][18].Most work in this area has simply involved the synthesis and characterisation of such coordination polymers. More recently, attention has moved towards finding useful applications for such compounds based on functional properties displayed by these materials [19][20][21].…”