Abstract
Tractable (soluble) linear transition metal coordination polymers in which the metal ions are a necessary part of the backbone (and without which the polymer will stay intact) have proven difficult to synthesize.1-6 Bis(tetradentate) Schiff-base ligands coupled with zirconium(IV) ions large enough for eight- coordination can be used to overcome this insolubility,7-8 and recently an analogous soluble cerium(IV) Schiff-base polymer has been prepared.9 Although a number of reports had appeared regarding polymeric systems in which lanthanide metal ions are attached to a branch of a polymer chain10-14 or solid state species that either remain insoluble in all solvents or fall apart into small molecules when dissolved,15-17 soluble linear polymers with lanthanide ions in their backbone had been lacking prior to our study of catena-poly [cerium(IV)-µ-N,N′,N″,N‴-tetrasalicylidene(3,3′-diaminobenzidinato)-O,-N,N′,O′:O″,N″,N‴ ,O‴], [Ce(tsdb)]n.9
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Archer, R.D., Chen, H., Cronin, J.A., Palmer, S.M. (1990). Metal Coordination Polymers: Eight-Coordinate Cerium(IV) and Zirconium(IV) Polymers with Varied Flexibility, Conjugation, and Stability Through Ligand Variation. In: Pittman, C.U., Carraher, C.E., Zeldin, M., Sheats, J.E., Culbertson, B.M. (eds) Metal-Containing Polymeric Materials. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0669-6_5
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DOI: https://doi.org/10.1007/978-1-4613-0669-6_5
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