title: Heavy-metal aromatic rings: cyclopentadienyl anion analogues Sn5(6-) and Pb5(6-) in the Zintl Phases Na8BaPb6, Na8BaSn6, and Na8EuSn6.
authors.affiliation: Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA.
authors.forename: Iliya
authors.initials: I
authors.lastname: Todorov
authors.forename: Slavi C
authors.initials: SC
authors.lastname: Sevov