Synthesis and characterization of hybrid Anderson hexamolybdoaluminates(III) functionalized with indometacin or cinnamic acid.

The single-side Al-centred tris-functionalized hybrid organic-inorganic Anderson polyoxomolybdates (C16H36N)3[Al(OH)3Mo6O18(OCH2)3CNH(C10H8 O)]·C9H7- N·4CH3OH·5H2O (AlMo6-NH-Cin; Cin is cinnamic acid, C10H9O2) and (C16H36N)3[Al(OH)3Mo6O18 (OCH2)3CNH(C19H15ClNO3)]·9H2O (AlMo6-NHIndo; Indo is indometacin, C19H16ClNO4) have been prepared in a mild threestep synthesis and structurally characterized by single-crystal X-ray diffraction, 1H NMRand IR spectroscopies and elemental analysis. Both AlMo6-NH-Cin and AlMo6-NH-Indo crystallize in the orthorhombic space group Pbca. The antibacterial activities of AlMo6-NH-Cin and AlMo6-NH-Indo against the Gram-negative human mucosal pathogen Moraxella catarrhalis were investigated by determination of the minimum inhibitory concentration, which is 32 mg ml-1 for AlMo6-NH-Cin and 256 μg ml-1 for AlMo6-NH-Indo. [ABSTRACT FROM AUTHOR]