| http://www.w3.org/ns/prov#value | - As the organosilicon compounds can be used those compounds of the formula R2 XR3 YSi(OR4)Z wherein R2 and R4 are a hydrocarbyl group, R3 is a hydrocarbyl group or a hydrocarbyl group containing a hetero atom, X, Y and Z have the relationship of 0???X???2, 1???Y???3, 1???Z???3 and X+Y+Z=4.
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