Z. Naturforsch. 2014, 69b, 1119 – 1123
The Reduction of Pyridine by K12Si17 to the 4,4′-Bipyridine Radical Anion [C10H8N2]−•: Crystal Structure and Spectroscopic Characterization of [K([2.2.2]crypt)][C10H8N2]
Christian B. Benda and Thomas F. Fässler
Department Chemie, Technische Universität München, Lichtenbergstraße 4, D-85747 Garching, Germany
Reprint requests to Prof. Dr. T. F. Fässler. Fax: (+49) 89-289-13186. E-mail: thomas.faessler@lrz.tum.de
Received September 11, 2014 / published online December 19, 2014
Dedicated to Professor Hubert Schmidbaur on the occasion of his 80th birthday
From an anhydrous pyridine extract of the binary Zintl phase K12Si17 in the presence of the cation sequestering agent [2.2.2]crypt (4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8.8.8]hexacosane) crystals of the compound [K([2.2.2]crypt)][C10H8N2] have been isolated which contains the 4,4′-bipyridine radical monoanion. This compound was fully characterized by X-ray diffraction, 1H, 13C NMR, EPR, IR and UV/Vis spectroscopy.
Key words: Organic Radicals, X-Ray Diffraction, NMR, EPR, UV/Vis, IR Spectroscopy
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