Affiliation:
1. Department of Chemistry College of Natural & Computational Sciences Hawassa University P.O. Box 05 Hawassa Ethiopia
2. Department of Chemistry Faculty of Science University of Allahabad Prayagraj 211002 Uttar Pradesh India
3. Department of Inorganic & Structural Chemistry Howard University Washington DC 20059 USA
Abstract
AbstractTwo well‐defined novel binuclear cobalt (II) [Co(H2L1)]2 and [Co(H2L2)]2 compounds are presented. Binuclear cobalt (II) complexes (1–2) containing 1,1′‐binaphthyl derived tetradentate (N2O2) donor ligands H2L1 and H2L2, namely 3,3‐bis[((2,6‐diisopropylphenyl)imino)methyl]‐[1,1′‐binaphthalene‐2,2′‐dioxodicobalt(II) and 3,3′‐bis‐[((2,6‐diethyl‐phenyl)imino)‐ethyl]‐[1,1′]‐binaphtyl‐2,2′‐dioxocobalt(II) complexes were synthesized and isolated for the first time. Various spectroscopic techniques, including UV‐visible spectra, magnetic susceptibility, cyclic voltammetry, elemental analysis, mass spectrometry, and single‐crystal X‐ray diffraction were used to structurally characterize these binuclear cobalt(II) complexes. The binuclear cobalt (II) [Co(H2L1)]2 and [Co(H2L2)]2 complexes (1–2) demonstrated excellent catalytic activity in the cyanosilylation reaction of various aryl aldehydes to value‐added cyanohydrins at room temperature under solvent‐free conditions.
Funder
Department of Science and Technology, Government of Kerala