Cyanoscorpionate Ligands: Agostic Interactions in a Series of Metal Complexes Containing the Tris(4‐cyano‐3‐phenylpyrazolyl)borate and Bis(4‐cyano‐3‐phenylpyrazolyl)borate Ligands. Issue 15 (12th January 2016)

• Record Type: Journal Article
• Authors: Kadel, Lava R.; Bullinger, John R.; Baum, Robert R.; Moore, Curtis E.; Tierney, David L.; Eichhorn, David M.
• Other Names: Pettinari C. guestEditor.
• Is Part Of: European journal of inorganic chemistry. Issue 15/16(2016)
• Page Start: 2543
• Page End: 2551
• Publication Date: 2016-01-12
• Subjects: Agostic interactions -- N ligands -- Tridentate ligands -- Scorpionate ligands -- Transition metals; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201501268
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract : Scorpionate chemistry has long featured sandwich complexes with two trispyrazolylborate (Tp) or two bispyrazolylborate (Bp) ligands coordinated to a transition metal. Less common are complexes in which one Tp and one Bp ligand are coordinated to the metal. We report herein five such complexes of Ni II, Mn II, Co II, or Fe II involving Tp and Bp ligands comprising either 3‐phenyl‐4‐cyanopyrazole or 3‐phenylpyrazole, as well as a related Co II complex with two Tp ligands, one of which is coordinated in a κ 2 fashion. All complexes feature an agostic interaction with a B–H hydrogen atom. Abstract : Less common in scorpionate chemistry are complexes in which one Tp and one Bp ligand are coordinated to the metal. We report five complexes of Ni II, Mn II, Co II, or Fe II involving Tp and Bp ligands comprising either 3‐phenyl‐4‐cyanopyrazole or 3‐phenylpyrazole, and a related Co II complex with two Tp ligands. All complexes feature an agostic interaction with a B–H hydrogen atom.