Dinuclear acetylide-bridged ruthenium(ii) complexes with rigid non-aromatic spacers. Issue 8 (12th February 2020)

• Record Type: Journal Article
• Authors: Naik, Surabhi; Scottwell, Synøve Ø.; Li, Hsiu L.; Leong, Chanel F.; D'Alessandro, Deanna M.; Field, Leslie D.
• Is Part Of: Dalton transactions. Volume 49:Issue 8(2020)
• Page Start: 2687
• Page End: 2695
• Publication Date: 2020-02-12
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c9dt04856a
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : A series of dinuclear acetylide-bridged ruthenium complexes with rigid linkers 1, 4-bicyclooctane and 1, 12- p -carborane was synthesised and the metal-to-metal communication through the bridge was explored using cyclic voltammetry. Abstract : Rigid dinuclear ruthenium complexes containing non-aromatic caged and polycyclic spacer groups were synthesised and characterised. The complexes, [ trans, trans -{Ru(dmpe)2 (CC t Bu)}2 (μ-CC–X–CC)], where X = 1, 4-bicyclo[2.2.2]octane (C8 H12 ) or 1, 12- p -carborane ( p -C2 B10 H10 ), were formed via the metathesis of terminal organic bisacetylenes with the methylruthenium complex, [ trans -Ru(dmpe)2 (CH3 )(CC t Bu)], under mild conditions. Electrochemical studies demonstrated electronic interactions across the non-aromatic caged and polycyclic spacers was less than in the analogous complex with an aromatic spacer group, [ trans, trans -{Ru(dmpe)2 (CC t Bu)}2 (μ-CC- p -C6 H4 -CC)]. Mononuclear complexes, [ trans -Ru(dmpe)2 (CC t Bu)(CC–X–CCH)], were also synthesised. [ trans -Ru(dmpe)2 (CC t Bu)(CC–C8 H12 –CCH)] and [ trans, trans -{Ru(dmpe)2 (CC t Bu)}2 (μ-CC– p -C2 B10 H10 –CC)] were structurally characterised by X-ray crystallography.