| 主权项 |
1. A method for polymerizing a heteroaromatic sulfide comprising the step of contacting said sulfide with a polyoxometalate catalyst, or a solvate thereof; wherein said polyoxometalate catalyst is represented by the general formula Qq[XM12-nM'nO40],or a solvate thereof, wherein:
X is selected from the group consisting of (i) B, Al, Ga, In, Si, Ge, Sn, P, As, Sb, S, Se, Te; (ii) a. proton; and (iii) a transition metal selected from Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu and Zn; M is selected from the group consisting of tungsten (W), molybdenum (Mo) and combinations thereof, wherein the tungsten and/or molybdenum are in a high valence state, preferably +4, +5 or +6; M′ is selected from the group consisting of niobium (Nb), tantalum (Ta), antimony (Sb), bismuth (Bi), tin (Sn) and vanadium (V); Q is a counter cation selected from a proton, an alkali metal, an alkaline earth metal, a transition metal which is preferably lanthanides or actinides, a main group metal, and an organic cation which is preferably a quaternary ammonium or phosphonium cation; n is 0, 3, 4, 5or 6; and q is an integer between 1 and 30. |
