Journal article
Toward an iron(II) spin-crossover grafted phosphazene polymer
RJ Davidson, EW Ainscough, AM Brodie, GB Jameson, MR Waterland, HR Allcock, MD Hindenlang, B Moubaraki, KS Murray, KC Gordon, R Horvath, GNL Jameson
Inorganic Chemistry | AMER CHEMICAL SOC | Published : 2012
DOI: 10.1021/ic300853f
Abstract
Two new cyclotriphosphazene ligands with pendant 2,2′:6′, 2″-terpyridine (Terpy) moieties, namely, (pentaphenoxy){4-[2,6-bis(2- pyridyl)]pyridoxy}cyclotriphosphazene (L 1), (pentaphenoxy){4-[2,6- terpyridin-4-yl]phenoxy}cyclotriphosphazene (L 2), and their respective polymeric analogues, L 1P and L 2P, were synthesized. These ligands were used to form iron(II) complexes with an Fe IITerpy 2 core. Variable-temperature resonance Raman, UV-visible, and Mössbauer spectroscopies with magnetic measurements aided by density functional theory calculations were used to understand the physical characteristics of the complexes. By a comparison of measurements, the polymers were shown to behave in the s..
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Funding Acknowledgements
We thank Assoc. Prof. S. Telfer and the MacDiarmid Institute for Advanced Materials and Nanotechnology for the use of the Spider diffractometer, the Best-Grid super computer for the use of the supercomputer, Dr. Matthias Lein for the use of the double-helix super computer and the use of Gaussian09, and Associate Prof. A. Partridge for the use of GaussView and gratefully acknowledge financial support from the Massey University Research Fund and the Massey University Ph.D. scholarship (to R.J.D.). We also thank G. Weal for help in collecting the Mossbauer data.