Ambi-Valence Taken Literally: Ruthenium vs Iron Oxidation in (1,1′-Diphosphinoferrocene)ruthenium(II) Hydride and Chloride Complexes as Deduced from Spectroelectrochemistry of the Heterodimetallic “Mixed-Valent” Intermediates

0349260 - ÚFCH JH 2011 RIV US eng J - Článek v odborném periodiku
Sixt, T. - Sieger, M. - Krafft, M. J. - Bubrin, D. - Fiedler, Jan - Kaim, W.
Ambi-Valence Taken Literally: Ruthenium vs Iron Oxidation in (1,1′-Diphosphinoferrocene)ruthenium(II) Hydride and Chloride Complexes as Deduced from Spectroelectrochemistry of the Heterodimetallic “Mixed-Valent” Intermediates.
Organometallics. Roč. 29, č. 21 (2010), s. 5511-5516. ISSN 0276-7333. E-ISSN 1520-6041
Grant CEP: GA ČR GA203/09/0705; GA ČR GA203/08/1157
Výzkumný záměr: CEZ:AV0Z40400503
Klíčová slova: (1,1′-Diphosphinoferrocene)ruthenium(II) * hydride complexes * chloriode complexes
Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
Impakt faktor: 3.888, rok: 2010

Combining two different redox-active organometallic moieties, we prepared the compounds [(Cym)RuCl(dpf)](PF6), with Cym = p-cymene = 1-isopropyl-4-methylbenzene, and the diphosphinoferrocenes (dpf) 1,1′-bis(diphenylphosphino)ferrocene (dppf; complex 3), 1,1′-bis(diisopropylphosphino)ferrocene (dippf; complex 4), and 1,1′-bis(diethylphosphino)ferrocene (depf; complex 5) as well as the structurally characterized hydride complex [(C5Me5)RuH(dippf)] (2). In contrast to the case for 2, with an approximately staggered ferrocene conformation, the chloride complexes 3−5 exhibit a syn-periplanar ferrocene arrangement due to a Cl···H(C5H4) interaction in the solid and in solution. The related new compounds [(Cym)RuH(dppf)](PF6) (6) and trinuclear (μ-dpf)[(Cym)RuCl2)]2 (7−9) were also obtained and identified by 1H and 31P NMR spectroscopy.
Trvalý link: http://hdl.handle.net/11104/0189548