| http://www.w3.org/ns/prov#value | - ence of R8, R9, and R10 is independently selected from the group of monovalent hydrocarbon radicals having from 1 to 6 carbon atoms and monovalent aryl or aralkyl hydrocarbon radicals having from 6 to 13 carbon atoms and R12 is a divalent hydrocarbon radical having from 1 to 3 carbon atoms, R1 and R2 are each independently selected from the group of from 1 to 6 carbon atom monovalent hydrocarbon r
|
