2-D metalloporphyrin coordination network of cobalt-meso-tetra(4-carboxyphenyl)porphyrin

A new metalloporphyrin coordination framework [Co(H3TCPP)] (H6TCPP = meso-tetra(4-carboxyphenyl)porphyrin) has been synthesized hydrothermally. Single-crystal X-ray analysis revealed it exhibits a 2-D layered coordination network structure. Hydrogen bonds are observed between carboxyl groups within the 2-D layer as well as from adjacent layers. The UV–Vis diffuse reflectance spectrum indicates the presence of the expected B (410 nm) and Q (540 and 690 nm) absorption bands. The fluorescence spectrum shows four emission bands centered at 648 nm.