@property<EOL><INDENT>def UNIFAC_groups(self):<DEDENT>
return [i.UNIFAC_groups for i in self.Chemicals]<EOL>
r'''List of dictionaries of UNIFAC subgroup: count groups for each chemical in the mixture. Uses the original
        UNIFAC subgroups, as determined by `DDBST's online service <http://www.ddbst.com/unifacga.html>`_.

        Examples
        --------
        >>> pprint(Mixture(['1-pentanol', 'decane'], ws=[0.5, 0.5]).UNIFAC_groups)
        [{1: 1, 2: 4, 14: 1}, {1: 2, 2: 8}]