title: A combined electrochemical quartz-crystal microbalance probe beam deflection (EQCM-PBD) study of solvent and ion transfers at a poly
abstract: The oxidative polymerisation of the complex2,3-dimethyl-N,N'-bis-(salicylidene)butane-2,3-diaminatonick-el(II), [Ni(saltMe)], was monitored by the electrochemical quartz microbalance (EQCM) and crystal impedance techniques. Polymerisation efficiency was maintained throughout deposition of a film, which behaved rigidly, on the electrode. A combined EQCM-PBD (probe beam deflection) study of the redox process of the film exposed to a monomer-free solution of 0.1 M tetraethylammonium perchlorate (TEAP) in acetonitrile showed an electroneutrality mechanism dominated by anion movement accompanied by co-transfer of solvent above 0.8 V. The individual contributions of all the mobile species involved in the redox switching of the poly[Ni(saltMe)] film were determined quantitatively by temporal convolution analysis; the estimated solution-phase diffusion coefficient of the exchanged species was 1.24 x 10(-5) cm2s-1.
authors.affiliation: CEQUP/Departamento de Quimica, Faculdade de Ciencias, Universidade do Porto, Portugal.
authors.initials: M
authors.lastname: Vilas-Boas
authors.initials: MJ
authors.lastname: Henderson
authors.initials: C
authors.lastname: Freire
authors.initials: AR
authors.lastname: Hillman
authors.initials: E
authors.lastname: Vieil