A novel terbium-cobalt tetra(4-sulfonatophenyl)porphyrin: Synthesis, structure and photophysical and electrochemical properties

摘要

A novel terbium-cobalt porphyrin {[Tb(H2O)(3)][Co(TPPS)]}(n)center dot nH(3)O (1) (TPPS = tetra(4-sulfonatophenyl)porphyrin) has been synthesized via a hydrothermal reaction and structurally characterized by X-ray single crystal diffraction. Compound 1 is characterized by a three-dimensional (3-D) porous open framework, which is originated from the Co(TPPS) moieties interconnected by the terbium ions. The fluorescence study shows that compound 1 displays an emission band in the blue region. Nanosecond transient spectra reveals that the fluorescence lifetime is 1.14 ms. The cyclic voltammetry (CV) and differential pulse voltammetry (DPV) experiments discovers one reversible wave with E-1/2 = -0.80 V.