| Abstrakt: |
The reaction of 1 mol equivalent of MoCl2(NO)T* p [T* p = tris(3,5 dimethylpyrazolyl)borate] with one mole equivalent of the zinc Schiff base complexes obtained from the condensation of 2,5-dihydroxybenzaldehyde, salicylaldehyde and a series of α, ω diamines [NH2(CH2) nNH2, n = 2–4] is described, together with the i.r.; u.v.–vis. and 1H-n.m.r. spectroscopic properties of these products. Cyclic voltammetric data in CH2Cl2 reveal that the binuclear complex products undergo reversible one-electron reductions associated with the MoCl(NO)T* p centre. No zinc-based redox processes in the new complexes could be detected on the cyclic voltammetry timescale. The behaviour of the MoCl(NO)T* p centre in DMSO indicates that the complexes undergo irreversible reductions at anodically shifted potentials (in comparison with the reduction of binuclear complexes in CH2Cl2), indicating that reductions of the binuclear complexes are solvent dependent. [ABSTRACT FROM AUTHOR] |
Full text from SpringerLink