A Facile Access to New Polymethylmethacrylate-Anchored Ferrocene Substituted Nickel(II) Unsymmetrical Schiff Base Complexes: Synthesis and Characterization

作者：Novoa Nestor; Pablo Soto Juan; Henriquez Rodrigo; Manzur Carolina^*; Carrillo David; Hamon Jean Rene

来源：Journal of Inorganic and Organometallic Polymers and Materials, 2013, 23(6): 1247-1254.

DOI：10.1007/s10904-013-9916-8

• Schiff base complexes
• Metallopolymers
• Polymethylmethacrylate
• Atomic force microscopy
• Cyclic voltammetry

This paper discloses two new side-chain metallopolymers containing an unsymmetrical organometallic Schiff base complex of Ni(II) linked to a polymethylmethacrylate (PMMA) matrix. The neutral ferrocene substituted Schiff base complex 1, Ni{CpFe(eta(5)-C5H4)-C(O)CH=C(CH3)N-o-C6H4N=CH-(2-O,5-OH-C6H3)} where (Cp = eta(5)-C5H5), was synthesized via template reaction by condensation of the tridentate half-unit metalloligand Fc-C(O)CH=C(CH3)-N(H)-o-C6H4NH2 (Fc = ferrocenyl = CpFe(eta(5)-C5H4)) with 2,5-dihydroxybenzaldehyde in the presence of nickel(II) acetate tetrahydrate. The binuclear Schiff base complex of Ni(II) containing an aromatic free hydroxyl group was reacted under basic conditions with PMMA to afford, upon trans-esterification reaction, metallopolymers 2 (complex 1 monomeric unit/PMMA = 1/5) and 3 (complex 1 monomeric unit/PMMA = 1/3). Elemental analysis, FT-IR, H-1 and C-13 NMR spectroscopies, and cyclic voltammetry were utilized to characterize the newly synthetized compounds. Surface morphology of the metallopolymer film of 2 was studied using atomic force microscopy.

• 出版日期2013-11