Synthesis, Structure, and Reactivity of Rhodium Bipyridine Compounds: Formation of a RhII Hydrido Cluster and a RhIII Peroxido Complex

✍ Scribed by Anna Penner; Tobias Schröder; Thomas Braun; Burkhard Ziemer

• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 212 KB
• Volume: 2009
• Category: Article
• ISSN: 1434-1948
• DOI: 10.1002/ejic.200900531

✦ Synopsis

Abstract

Treatment of [Rh(μ‐Cl)(coe)~2~]~2~ (coe = cyclooctene) with 4,4′‐di‐tert‐butyl‐2,2′‐bipyridine (tbbpy) gives the bipyridine complex [Rh(Cl)(tbbpy)(coe)] (1). A subsequent reaction with dihydrogen results in the formation of the cluster [{Rh(Cl)(H)(tbbpy)}]~4~ (2). The reaction of [Rh(μ‐Cl)(coe)~2~]~2~ with tbbpy in thf followed by the addition of CN__t__Bu affords [Rh(Cl)(tbbpy)(CN__t__Bu)] (3). The latter reacts with O~2~ or ^18^O~2~ to yield the peroxido complexes [Rh(Cl)(O~2~)(tbbpy)(CN__t__Bu)] (4a) and [Rh(Cl)(^18^O~2~)(tbbpy)‐(CN__t__Bu)] (4b), respectively. Complexes 1–4 were characterized by X‐ray crystallography. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)