A Dawson-type {P4W24} modified using phenylphosphonic acid with excellent proton conductivity

The compound K 4 Na 4 H 11 [KCo 2 (H 2 O) 10 P 4 W 24 O 92 {(PhPO) 2 }]·48H 2 O (1) contains Dawson-type structural in the organophosphonate-functionalized POT field. The proton conductivity of 1 reaches 1.59 × 10 −2 S cm −1 at 318 K and 95% RH.