The interplay of coordinative, hydrogen bonding and π-π stacking interactions in sustaining supramolecular solid-state architectures.: A study case of bis(4-pyridyl)- and bis(4-pyridyl-N-oxide) tectons

Bis-monodentate ligands, such as bis(4-pyridyl) derivatives and bis(4-pyridyl-N-oxide), are able to generate polymetallic coordination networks with interesting supramolecular solid-state architectures. This review is devoted to high-dimensionality systems, which are extended by combining two or three organizing forces: metal-coordination, hydrogen bonds and pi-pi stacking interactions. A special emphasis is given to the following molecules, which play the role of linkers and spacers in the construction of extended frameworks: 4,4'-bipyridine, 1,2-bis(4-pyridyl)ethane, trans- 1,2-bis(4-pyridyl)ethene, trans-4,4'-azo-pyridine, 4,4'-bipyridyl-N,N'-dioxide. (C) 2002 Elsevier Science B.V. All rights reserved.