around 10–3 S cm–1 at ambient temperature, which was obtained using the pores of a metal–
organic framework (MOF), MIL-101, as ion-conducting pathways. The MOF, MIL-101⊃{Mg
(TFSI) 2} 1.6 (TFSI–= bis (trifluoromethanesulfonyl) imide), containing Mg2+ inside its pores,
showed a superionic conductivity of 1.9× 10–3 S cm–1 at room temperature (RT)(25° C)
under the optimal guest vapor (MeCN), which is the highest value among all Mg2+ …