High capacity CO₂ adsorption in a Mg(ii)-based phosphine oxide coordination material
2011
Bohnsack, Alisha M. | Ibarra, Ilich A. | Hatfield, Peter W. | Yoon, Ji Woong | Hwang, Young Kyu | Chang, Jong-San | Humphrey, Simon M.
The new porous phosphine coordination material, PCM-11, is an unusual 8,4-connected coordination polymer with an open 3-D pore structure, formed by reaction of Mg(ii) with tris(para-carboxylato)triphenylphosphine oxide. The highly ionic nature of the metal–ligand bonding results in excellent thermal stability upon desolvation (>460 °C). PCM-11 is easily activated for small molecule sorption at low temperature without the requirement for solvent pre-exchange. It adsorbs 47.5 wt% CO₂ at 11.6 bar and 30 °C.
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