This page, "CH2=C(CH2.)C(=CH2)CH2 anion", is part of the NIST Chemistry WebBook. This site and its contents are part of the NIST Standard Reference Data Program.
This page, "CH2=C(CH2)2 radical anion", is part of the NIST Chemistry WebBook. This site and its contents are part of the NIST Standard Reference Data Program.