Lipophilic metallates

An anion with the general structure (I):

• where
• M is selected from the group consisting of Al, B, Ga, Sc, Y and the lanthanoids,
• X is a substituent selected independently from the group consisting of aryl, —SiR11R12R13 and substituents with the following general structure (II-A) or (II-B):
• where R1, R2, R3, R4, R5, R6 and R7 are each independently selected from the group consisting of hydrogen, straight- or branched-chain C1-12-alkyl, phenyl and benzyl, and R8, R9 and R10 are each independently selected from the group consisting of straight- or branched-chain C1-26-alkyl, phenyl and benzyl, and where R11, R12 and R13 are each independently selected from the group consisting of aryl and straight- or branched-chain C1-26-alkyl.