Patent ID: 7495121

Claim:
A multimetal oxide material of the formula I A a [Mo 5−b−c V b X c O d ] 1 (I), where A is at least one of the elements selected from the group consisting of NH 4 , Na, K, Rb, Cs and Tl; X is one or more of the elements selected from the group consisting of La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ti, Zr, Hf, Nb, Ta, W, Mn, Re, Fe, Co, Ni, Cr, Ru, Rh, Pd, Os, Ir, Pt, Cu, Ag, Au, Zn, Cd, Hg, B, Al, Ga, In, C, Si, Ge, Sn, Pb, P, As, Sb, Bi, S, Se and Te; a is from 0.1 to 1; b is from 0.25 to 4.5; and c is from 0 to 4.5, with the proviso that b+c≦4.5, whose X-ray diffractogram contains the following X-ray diffraction pattern XP, reproduced in the form of interplanar spacings d [Å] independent of the wavelength of the X-rays used, d [Å] 3.06 ± 0.2 3.17 ± 0.2 3.28 ± 0.2 3.99 ± 0.2 9.82 ± 0.4 11.24 ± 0.4 13.28 ± 0.5.