Alkali alkoxometallates

The formation of alkali alkoxometallates in the reactions of alkah alkoxides with those of less basic alkoxides continues to be the most common route, although reactions of a few other alkoxides have also been utilized for this purpose ... 

In addition to the formation of alkali alkoxometallates by the reactions of alkali alkoxides (strong bases) with alkoxides of a variety of metals and metalloids (Lewis acids), formation of heterometal alkoxides has been shown to occur even between alkoxides of such similar metals as aluminium and gaUium as weU as niobium and tantalum. However, the formation constant of the latter derivative has been found to be statistical, which precludes the isolation of this bimetallic alkoxide in view of the equilibrium ... 

Reactions of Metal Halides (Nitrate) with Alkali Alkoxometallates (C)... 

Partially substituted products, MClj j,Lj, have been reported by the reactions of anhydrous chlorides of various metals with alkali alkoxometallates in suitable stoichiometric ratios (Eqs 3.58-3.62) ... 

The reactions of metal chlorides with alkali metal alkoxometalates have been extensively employed (4a, 6, 7, 12, 17, 19) for the synthesis of soluble het-... 

These alkoxometalate chloride derivatives, EC1XL x, can be converted into their alkoxometalate alkoxide or /3-diketonate analogues by their reaction with alkali alkoxide or /3-diketonate in the appropriate molar ratios. 

The 1 1 molar reaction of alkali and titanium isopropoxide also yielded a crys-tallizable derivative of composition M Ti(OPr )5. Interestingly, a similar reaction of MOBu and Zr(OBu )4 also resulted in a crystallizable volatile dimeric product [ KZr(OBu )5 2]. The basic information on the more dominant was thus set out in nona-alkoxodimetallate M2(OR)9 , penta-alkoxometallate M(OR)5 , and hexa-alkoxometaUate M(OR)6 derivatives were thus laid in this early publication. 

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