| abstract |
Silane modified polyoxometalate anions represented by the formula YZ(SiRR') n were prepared by reacting a silane having two hydrolyzable groups with a lacunary polyoxometalate anion. In the formula YZ(SiRR') n , Z is M 11 O 39 -12 , M 9 O 34 -14 or M 17 O 61 -20 , where M is tungsten or molybdenum; Y is As +5 , Si +4 , B +3 , Ge +4 , P +5 or Fe +5 when Z is M 11 O 39 -12 , Y is Si +4 , Ge +4 , or P +5 when Z is M 9 O 34 -14 and Y is As 2 +10 or P 2 +10 when Z is M 17 O 61 -20 ; R is selected from the group consisting of monovalent hydrocarbon radicals having from 1 to 24 carbon atoms, monovalent halogenated hydrocarbon or carbon radicals having from 1 to 24 carbon atoms and monovalent hydrocarbon radicals having from 1 to 24 carbon atoms substituted with an epoxy group, an amino group, a mercapto group or a methacrylo group; R' is a hydrogen atom or R and n represents the number of (═SiRR') +2 groups bonding to the polyoxometalate anion and has a value from 1 to 3. |