We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
On the Formation of Intermetalloid Clusters: Titanocene(III)diammin as a Versatile Reactant Toward Nonastannide Zintl Clusters.
- Authors
Benda, Christian B.; Waibel, Markus; Fässler, Thomas F.
- Abstract
The reactivity of TiCp2Cl2 (d0) towards Zintl clusters was studied in liquid ammonia (Cp=cyclopentadienyl). Reduction of TiIVCp2Cl2 and ligand exchange led to the formation of [TiIIICp2(NH3)2]+, also obtainable by recrystallization of [CpTiIIICl]2. Upon reaction with [K4Sn9], ligand exchange leads to [TiCp2(η1-Sn9)(NH3)]3−. A small variation of the stoichiometry led to the formation of [Ti(η4-Sn8)Cp]3−, which cocrystallizes with [TiCp2(NH3)2]+ and [TiCp2(η1-Sn9)(NH3)]3−. Finally, the large intermetalloid cluster anion [Ti4Sn15Cp5] n− ( n=4 or 5) was obtained from the reaction of K12Sn17 and TiCp2Cl2 in liquid ammonia. The isolation of three side products, [K([18]crown-6)]Cp, [K([18]crown-6)]Cp(NH3), and [K([2.2]crypt)]Cp, suggests a stepwise elimination of the Cl− and Cp− ligands from TiCp2Cl2 and thus gives a hint to the mechanism of the product formation in which [Ti(η4+2-Sn8)Cp]3− has a key role.
- Subjects
REACTIVITY (Chemistry); CYCLOPENTADIENE; LIQUID ammonia; ZINTL compounds; CRYSTALLIZATION; LIGAND exchange reactions
- Publication
Angewandte Chemie International Edition, 2015, Vol 54, Issue 2, p522
- ISSN
1433-7851
- Publication type
Article
- DOI
10.1002/anie.201407855