prov:value
| - Examples of useful modifying groups include deuterium, F, Cl, Br, I, biotin, SiR3, Si(CH3)3, Si(CH3)2, (C2H5), Si(CH3)(C2H5)2, Si(C2H5)3, (CH2)nCH3 (CH2)nNR2, CH2, CONR2, (CH2)nOH, CH2F, CHF2 and CF3; wherein n is an integer and R is selected from the group consisting of ???H, deuterium and alkyls, alkoxys and aryls of 1-6 carbon atoms, polyoxymethylene, monoalkylated polyoxymethylene, polyethylen
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