| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1325433 | Journal of Organometallic Chemistry | 2011 | 7 Pages |
The reactivity of aryl cobaloximes, ArCo(dmgH)2Py [Ar = Phenyl, 1-naphthyl, 2-naphthyl, 4-NMe2C6H4, 2-thienyl] with molecular oxygen and electrophiles (Br2 and 2,4-dinitrobenzenesulfenyl chloride) has been investigated. All these complexes do not show any affinity toward molecular oxygen and the reaction with electrophiles either leads to ring substitution and/or the Co–C bond cleavage. The molecular structures of two new aryl cobaloximes and two ring substituted organometallic products have been determined crystallographically. The C–H⋯O intermolecular hydrogen bonding interactions in the crystal packing lead to different superstructural motifs.
Graphical abstractAryl cobaloximes do not react with molecular oxygen under thermal or photochemical conditions; however, the reaction with the electrophiles leads to either cleavage of Co–C bond and/or the ring substituted organometallic product. The X-ray structure and crystal packing exhibit some weak interactions to form different types of supramolecular structural motifs.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Reactivity studies of aryl cobaloximes with molecular oxygen and electrophiles. ► Electrophiles lead to either Co–C bond cleavage and/or aryl ring substitution. ► X-ray structures of aryl cobaloximes and ring-substituted organometallic products. ► Intermolecular hydrogen bonding interactions lead to different structural motifs.
