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Abstract
A novel lanthanide porphyrin [TbIII(H2TPPS)IV·H3O·2H2O] n (1) (H2TPPS = tetra(4-sulfonatophenyl)porphyrin) has been synthesized through a hydrothermal reaction and structurally characterized by single-crystal X-ray diffraction. Complex 1 is characterized by a three-dimensional porous open framework with the terbium atom coordinated by eight oxygen atoms to yield a distorted square anti-prism. TG–DTA measurements reveal that complex 1 is thermally stable up to 400 °C. Photoluminescence investigations show that complex 1 has an emission in the red region with a quantum yield of 1.7 % and a lifetime of 341 μs. CV–DPV studies discover one reductive potential of −0.36 V and one quasi-reversible wave with E 1/2 = −0.82 V.
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