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Paper | Special issue | Vol 95, No. 2, 2017, pp.1148-1158
Published online, 17th February, 2017
DOI: 10.3987/COM-16-S(S)88
Synthesis and Crystal Structures of Dicobalt Hexacarbonyl Complexes of Dicationic Alkyne-Bridged Imidazolium and Triazolium Derivates

Simone Haslinger, Gerhard Laus, Stefan Oberparleiter, Klaus Wurst, Volker Kahlenberg, Sven Nerdinger,* Erwin Schreiner, and Herwig Schottenberger

*Sandoz GmbH, Biochemiestrasse 10, 6250 Kundl, Austria


Dicationic alkyne-bridged imidazolium and triazolium chlorides were subjected to counter-ion replacement reaction with weakly coordinating anions, such as hexafluoridophosphate and bis(trifluoromethanesulfonyl)amide. The resulting low-melting salts were further functionalized to dicobalt hexacarbonyl adducts. Seven crystal structures were determined by X-ray diffraction. Interionic C–H...F and C–H...O contacts were observed.