title: Origin and location of electrons and protons during the formation of intermetalloid clusters [Sm@Ga(3-x)H(3-2x)Bi(10+x)](3-) (x = 0, 1).
abstract: Reaction of [GaBi3](2-) with [Sm(C5Me4H)3] yielded the first protonated ternary intermetalloid clusters [Sm@Ga(3-x)H(3-2x)Bi(10+x)](3-) (1; x = 0,1). The presence of the Ga-H bonds and the transfer of electrons and protons during the formation of 1 were elucidated by a combination of experimental and quantum chemical methods, thereby rationalizing the role of the solvent ethane-1,2-diamine as a Brønsted acid. As an organic by-product, we observed the previously unknown octamethylfulvene (2) upon C-C coupling of (C5Me4H)(-).
authors.affiliation: Fachbereich Chemie und Wissenschaftliches Zentrum für Materialwissenschaften, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg (Germany).
authors.forename: Bastian
authors.initials: B
authors.lastname: Weinert
authors.forename: Fabian
authors.initials: F
authors.lastname: Müller
authors.forename: Klaus
authors.initials: K
authors.lastname: Harms
authors.forename: Rodolphe
authors.initials: R
authors.lastname: Clérac
authors.forename: Stefanie
authors.initials: S
authors.lastname: Dehnen
keywords: NMR spectroscopy; Zintl anions; intermetalloid clusters; mass spectrometry; structure elucidation