title: Subtle impact of atomic ratio, charge and lewis basicity on structure selection and stability: the Zintl anion [(La@In2Bi11)(μ-Bi)2(La@In2Bi11)]6-.
abstract: Ternary intermetalloid cluster: the first intermetalloid M/13/15 Zintl anion [(La@In(2)Bi(11))(μ-Bi)(2)(La@In(2)Bi(11))](6-) was obtained upon reaction of [InBi(3)](2-) with [La(C(5)Me(4)H)(3)] in ethane-1,2-diamine. DFT calculations served to analyze and explain the Lewis acid/base interaction upon assignment of formal charges as "Bi(+) ←In(2-) ", which discriminates the anion from an isoelectronic La/Sn/Bi analogue that does not require bridging.
authors.affiliation: Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften, Philipps-Universität Marburg, Hans-Meerwein-Strasse, Germany.
authors.forename: Bastian
authors.initials: B
authors.lastname: Weinert
authors.forename: Florian
authors.initials: F
authors.lastname: Weigend
authors.forename: Stefanie
authors.initials: S
authors.lastname: Dehnen