Diaryldichalcogenide radical cations

Diaryldichalcogenide radical cations Full article

Journal

Chemical Science
ISSN: 2041-6520 , E-ISSN: 2041-6539

Output data

Year: 2015, Volume: 6, Number: 1, Pages: 497-504 Pages count : DOI: 10.1039/c4sc02964j

Authors

Mallow Ole ¹ , Khanfar Monther A. ^2,3 , Malischewski Moritz ² , Finke Pamela ¹ , Hesse Malte ¹ , Lork Enno ¹ , Augenstein Timo ⁴ , Breher Frank ⁴ , Harmer Jeffrey R. ⁵ , Vasilieva Nadezhda V. ⁶ , Zibarev Andrey ^6,7 , Bogomyakov Artem S. ⁸ , Seppelt Konrad ² , Beckmann Jens ¹

Affiliations

1	(Данные Web of science) Univ Bremen, Inst Anorgan Chem, D-28359 Bremen, Germany
2	(Данные Web of science) Free Univ Berlin, Inst Chem & Biochem, D-14195 Berlin, Germany
3	(Данные Web of science) Univ Jordan, Dept Chem, Amman 11942, Jordan
4	(Данные Web of science) Karlsruhe Inst Technol, Inst Anorgan Chem, D-76131 Karlsruhe, Germany
5	(Данные Web of science) Univ Queensland, Ctr Adv Imaging, St Lucia, Qld 4072, Australia
6	(Данные Web of science) Russian Acad Sci, Inst Organ Chem, Novosibirsk 630090, Russia
7	(Данные Web of science) Novosibirsk State Univ, Natl Res Univ, Dept Phys, Novosibirsk 630090, Russia
8	(Данные Web of science) Russian Acad Sci, Int Tomog Ctr, Novosibirsk 630090, Russia

One-electron oxidation of two series of diaryldichalcogenides (C6F5E)(2) (13a-c) and (2,6-Mes(2)C(6)H(3)E)(2) (16a-c) was studied (E = S, Se, Te). The reaction of 13a and 13b with AsF5 and SbF5 gave rise to the formation of thermally unstable radical cations [(C6F5S)(2)](center dot+) (14a) and [(C6F5Se)(2)](center dot+) (14b) that were isolated as [Sb2F11](-) and [As2F11](-) salts, respectively. The reaction of 13c with AsF5 afforded only the product of a Te-C bond cleavage, namely the previously known dication [Te-4](2+) that was isolated as [AsF6](-) salt. The reaction of (2,6-Mes(2)C(6)H(3)E)(2) (16a-c) with [NO][SbF6] provided the corresponding radical cations [(2,6-Mes(2)C(6)H(3)E)(2)](center dot+) (17a-c; E = S, Se, Te) in the form of thermally stable [SbF6](-) salts in nearly quantitative yields. The electronic and structural properties of these radical cations were probed by X-ray diffraction analysis, EPR spectroscopy, and density functional theory calculations and other methods.

Mallow O. , Khanfar M.A. , Malischewski M. , Finke P. , Hesse M. , Lork E. , Augenstein T. , Breher F. , Harmer J.R. , Vasilieva N.V. , Zibarev A. , Bogomyakov A.S. , Seppelt K. , Beckmann J.
Diaryldichalcogenide radical cations

Chemical Science. 2015. V.6. N1. P.497-504. DOI: 10.1039/c4sc02964j WOS Scopus

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