title: Chirality and polarity in the f-block borates M4[B16O26(OH)4(H2O)3Cl4] (M = Sm, Eu, Gd, Pu, Am, Cm, and Cf).
abstract: The reactions of trivalent lanthanides and actinides with molten boric acid in high chloride concentrations result in the formation of M4[B16O26(OH)4(H2O)3Cl4] (M = Sm, Eu, Gd, Pu, Am, Cm, Cf). This cubic structure type is remarkably complex and displays both chirality and polarity. The polymeric borate network forms helical features that are linked via two different types of nine-coordinate f-element environments. The f-f transitions are unusually intense and result in dark coloration of these compounds with actinides.
authors.affiliation: Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306 (USA).
authors.forename: Matthew J
authors.initials: MJ
authors.lastname: Polinski
authors.forename: Kristen A
authors.initials: KA
authors.lastname: Pace
authors.forename: Jared T
authors.initials: JT
authors.lastname: Stritzinger
authors.forename: Jian
authors.initials: J
authors.lastname: Lin
authors.forename: Justin N
authors.initials: JN
authors.lastname: Cross
authors.forename: Samantha K
authors.initials: SK
authors.lastname: Cary
authors.forename: Shelley M
authors.initials: SM
authors.lastname: Van Cleve
authors.forename: Evgeny V
authors.initials: EV
authors.lastname: Alekseev
authors.forename: Thomas E
authors.initials: TE
authors.lastname: Albrecht-Schmitt
keywords: actinides; americium; californium; curium; lanthanides; plutonium