Abstract
The reaction in dichloromethane at room temperature of the polyspirophosphazene copolymer {[NP(O2C12H8)]0.7[NP(OC5H4N)2]0.3} n (1) (O2C12H8=2,2′dioxybiphenyl) with [Ru2(η 6-p-cymene)2Cl4] gives the polymer supported organometallic complex {[NP(O2C12H8)]0.7[NP(OC5H4N-Ru(η 6-p-cymene)Cl2)2]0.3} n (2). Similarly the chiral phosphazene {[NP(O2C20H12)]0.9[NP(OC5H4N)2]0.1} n (3) (O2C20H12=R-2,2′-dioxy,1′1′-binaphthyl) reacts with the appropriate amount of the Ru precursor to give the related polymeric complex {[NP(O2C20H12)]0.9[NP(OC5H4N)(OC5H4N-Ru(η 6-p-cymene)Cl2]0.1} n (4) as an orange solid. Carrying out the reaction of 3 with the Ru precursor in acetone at room temperature using 0.35 equivalents of Ru per pyridine site, gives the crosslinked yellow material with formula {[NP(O2C20H12)]0.9[NP(OC5H5N)2]0.1[Ru(η 6-p-cymene)Cl2]0.07]} n (5), that may contain cationic [Ru(η 6-p-cymene)Cl]+ units trapped in the rigid interior of a chiral network.
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Carriedo, G.A., García Alonso, F.J. & Presa, A. Ru(II)(η6-p-cymene) Complexes Supported on Linear Chiral and Achiral Poly(spirophosphazene-pyridine) Copolymers. Journal of Inorganic and Organometallic Polymers 14, 29–37 (2004). https://doi.org/10.1023/B:JOIP.0000016756.45895.a8
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DOI: https://doi.org/10.1023/B:JOIP.0000016756.45895.a8