Journal article
Avoiding cross-linking in iron-polyphosphazene metallo-polymers
RJ Davidson, EW Ainscough, AM Brodie, MR Waterland, HR Allcock, MD Hindenlang, GNL Jameson
Inorganic Chemistry Communications | ELSEVIER | Published : 2015
Abstract
Two new polyphosphazene ligands containing 1,10-phenanthrolin-2-olate (L1) and 2,2-bipyridine-6-olate moieties (L2) with 5,5-di-tert-butylbiphenyl-2,2-bis(olate) co-substituents were synthesised and then reacted with Fe(Pyridine)4(NCS)2. Variable temperature Mössbauer and electronic absorbance spectroscopies were used to establish the physical behaviour of the new iron-polyphosphazenes. By attaching two bidentate ligands to a geminal phosphorus atom a pseudo tetradentate ligand can be formed that prevents cross-linking when iron is coordinated to the polyphosphazene.
Grants
Funding Acknowledgements
We thank the Massey University Research Fund for financial support and a PhD Scholarship (to RID.). We also thank Associate Professor S.G. Telfer and the MacDiarmid Institute for Advanced Materials and Nanotechnology for the use of the Spider Diffractometer, Professor K.C. Gordon and Dr R. Horvath (The University of Otago) for Resonance Raman data and G. Weal (The University of Otago) for help in collecting Mossbauer data.