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. 2017 Jun 15;6(1):A0057. doi: 10.5702/massspectrometry.A0057

Scheme 2. Fragmentation mechanisms for a (H, OH)-PDMS chain adducted with either formate or acetate anion (noted with A−). (A) Intramolecular bond translocation to yield ln product ions. (B) and (C) abstraction of acidic hydrogens from the hydroxy termination by A− to yield an− product ions. Additional bond translocation and/or elimination of a cylic Dn neutral through a backbitting process will produce smaller congeners.

Scheme 2. Fragmentation mechanisms for a (H, OH)-PDMS chain adducted with either formate or acetate anion (noted with A−). (A) Intramolecular bond translocation to yield ln product ions. (B) and (C) abstraction of acidic hydrogens from the hydroxy termination by A− to yield an− product ions. Additional bond translocation and/or elimination of a cylic Dn neutral through a backbitting process will produce smaller congeners.