Three porous and robust metalloporphyrin frameworks exhibiting preferable gas storage

• 5,15-Di(4-pyridyl)-10,20-bis(3,4,5-trifluorophenyl)porphyrin was synthesized firstly.
• Three new 2D Fe(III), Co(II), and Ni(II) metalloporphyrin frameworks were obtained.
• Three complexes reveal the high thermal stabilities.
• Three complexes have relatively preferable H2 uptake capacities.
• Three complexes have selective adsorption of CO2 over N2.

We have achieved success in obtaining three novel two-dimensional porous metalloporphyrin frameworks (MPFs) through solvothermal reactions, by using 5,15-di(4-pyridyl)-10,20-bis(3,4,5-trifluorophenyl) porphyrin (trans-Py2(F3-ph)2Por) metalated with Fe (1), Co (2), and Ni (3) salts respectively. TGA reveals that they all have high thermal stabilities. Gas adsorption studies indicate that three MPFs have relatively preferable H2 uptake capacities and the selective adsorption of CO2 over N2.

Three novel two-dimensional Fe(III), Co(II), and Ni(II) metalloporphyrin frameworks (MPFs) have been successfully synthesized and characterized, three complexes not only exhibit high thermal stabilities and porosity, but also have relatively preferable H2 uptake capacities and the selective adsorption of CO2 over N2.Figure optionsDownload as PowerPoint slide