Synthesis and crystal structure of H2Mo8O26[(n-Bu)(4)N](2)[(CH3)(2)COHCH2COCH3](2)

The title compound 4-methyl-4-hydroxy-2-pentone is obtained by the condensed reaction of acetone, and co-crystallized with octamolybdate anion and tetrabutyl-ammonium cation. The crystal structure belongs to triclinic system, space group P (1) over bar, Mo8C44H98O30N2 M-r = 1902. 77, a = 11. 512(6), b = 12. 790(3), c = 13. 395(4) Angstrom, alpha = 65.22 (2), beta = 78.26 (4), gamma = 71.12 (3), V = 1689 (1) Angstrom(3), Z = 1, D-x = 1. 869g/cm(3), F(000) = 950, mu = 14; 79 cm(-1), final R = 0.053 and R-w = 0.061. The orbital hybridization of C (53) and C (55) are sp(3) and sp(2) separately in (CH3)(2)COHCH2COCH3 and the catalysis of beta-octamolybdate anion might be present for the condensed reaction of acetone.