Exchanged ligands on the surface of a giant cluster: [(MoO3)176(H2O)63(CH3OH)17Hn](32 − n)−

Abstract

The synthesis of 1a·(32 – n)Na⁺·ca. 600 H₂O·ca. 30 CH₃OH 1 containing the ring-shaped, mixed-valence (Mo^V/Mo^VI) cluster [(MoO₃)₁₇₆(H₂O)₆₃(CH₃OH)₁₇H_n]^{(32 – n)–} 1a as a discrete unit in the crystal lattice is reported, which for the first time yields a compound of this type via a facile synthetic method and without amorphous reaction products; remarkably, H₂O ligands can be replaced by CH₃OH on the surface of a giant metal-oxide based cluster which has a nanometer sized cavity and, in contrast to zeolites, reducing properties.