3.2.2. Synthesis of Na4{V5Mo2O19[CH3CH2C(CH2O)3]}·13H2O (2)

The synthetic procedure of compound **2** was similar to that of compound **1**, except that the triol ligand was replaced by CH3CH2C(CH2OH)3 (0.27 g, 2.00 mmol) and the yield was 55.2% based on Mo. Elemental analysis calcd. (%) for [Na4{V5Mo2O19[CH3CH2C(CH2O)3]}·13H2O (Mw = 1207.89 g mol<sup>−</sup>1): C 5.97%, H 3.09%, Na 7.61%, V 21.09%, and Mo 15.89%; found C 5.89%, H 3.05%, Na 7.55%, V 21.03%, and Mo 15.94%.
