Solvothermal synthesis and crystal structure of a 3-D hexagonal metal-porphyrin coordination network

Abstract

A hexagonal-shaped hybrid metal-porphyrin framework containing 5,15-di(4-pyridyl)-10,20-diphenylporphyrin (trans-H₂DPyP) and Zn(NO₃)₂6H₂O in DMF has been self-assembled solvothermally. The solvothermal reaction of Zn(II) with conformationally versatile 5,15-di(4-pyridyl)-10,20-diphenylporphyrin, which can coordinate axially to two ligands, resulted in metalation of the porphyrin core and then self-coordination of the metalated porphyrin-produced single crystals of 3-D polymeric arrays. The trans-ZnDPyP framework is thermally stable at 450 °C and allows solvent exchange without losing the crystal structure.

Keywords:

• Solvothermal synthesis
• Porphyrin
• Coordination network

Acknowledgments

This work was generously supported by the NSF grant CHE-1110967 and the Robert A. Welch Foundation, grant # AH-0033.