prov:value
| - ?OSiR2 3 substituents; C2-C10-alkynyl groups, which may bear one or more identical or different halogen, OH, OR2, SR2, NR2 2???, PR2 2???, ???SiR2 3 or ???OSiR2 3 substituents; C8-C12-arylalkenyl groups, which may bear one or more identical or different halogen, OH, OR2, SR2, NR2 2???, PR2 2???, ???SiR2 3 or ???OSiR2 3 substituents, where R2 is as defined above, or R3 is a halogen atom or an NR2 2
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