327073-89-2Relevant academic research and scientific papers
Long-range chain orientation in 1-D co-ordination polymers as a function of anions and intermodular aromatic interactions
Blake, Alexander J.,Baum, Gerhard,Champness, Neu R.,Chung, Simon S. M.,Cooke, Paul A.,Fenske, Dicter,Khlobystov, Andrei N.,Lemenovskii, Dmitrii A.,Li, Wan-Sheung,Schroeder, Martin
, p. 4285 - 4291 (2000)
The influence of anions and intermolecular aromatic interactions on the orientation of one dimensional silver(i) co-ordination polymers has been studied. Reaction of AgX with 2, 7-diazapyrene (diaz) (X = BF4~ or NO3~), l, 4-bis(4-pyridyl)butadiyne (pybut) (X = BF4~, NO3~, PF6 or MeCO2~), 4, 4'-bipy (X = BF4~) or 1, 4-bis(4-pyridylethynyl)phenylene (pyphe) (X = PF6~) afforded products of general formula {[Ag(ligand)]X}. All of the products have been structurally characterised by single crystal X-ray diffraction confirming that they exist as one-dimensional linear chain co-ordination polymers. The arrangement of the chains with respect to each other in the solid state is discussed and evaluated in terms of the relative co-ordinating ability of the anion used and the tendency of the N-donor ligand to adopt intermolecular aromatic interactions. For the complexes of diaz the overriding force in controlling chain orientation was shown to be n-n interactions between diaz ligands on adjacent chains. In the case of the pybut complexes the most dominant forces were shown to be metal-anion interactions with aromatic n-n interactions and Ag Ag interactions playing a less influential role. In the case of {[Ag(pyphe)]PF6} Ag aromatic interactions are important in the overall arrangement of adjacent chains. The Royal Society of Chemistry 2000.
