Kinetic Destabilization of Metal-Metal Single Bonds: Isolation of a Pentacoordinate Manganese(0) Monoradical

Angewandte Chemie
Douglas W AgnewJoshua S Figueroa

Abstract

The 17e(-) monoradical [Mn(CO)5 ] is widely recognized as an unstable organometallic transient and is known to dimerize rapidly with the formation of a MnMn single bond. As a result of this instability, isolable analogues of [Mn(CO)5 ] have remained elusive. Herein, we show that two sterically encumbering isocyanide ligands can destabilize the MnMn bond leading to the formation of the isolable, manganese(0) monoradical [Mn(CO)3 (CNAr(Dipp2) )2 ] (Ar(Dipp2) =2,6-(2,6-(iPr)2 C6 H3 )2 C6 H3 ). The persistence of [Mn(CO)3 (CNAr(Dipp2) )2 ] has allowed for new insights into nitrosoarene spin-trapping studies of [Mn(CO)5 ].

References

Apr 11, 2002·Chemical Reviews·Jonghyuk LeeGeorge B Richter-Addo
Jul 28, 2009·Journal of the American Chemical Society·Liezel A LabiosJoshua S Figueroa
Feb 23, 2010·Chemical Reviews·Maria CaporaliMaurizio Peruzzini
May 5, 2010·Chemical Reviews·Manfred ScheerAndreas Seitz
Sep 21, 2010·Chemical Communications : Chem Comm·Mason A StewartJoshua S Figueroa
May 27, 2011·Inorganic Chemistry·Neil C TomsonKarl Wieghardt
Jun 18, 2011·Chemical Communications : Chem Comm·Mohammad S AskariXavier Ottenwaelder
Feb 20, 2013·Inorganic Chemistry·Jonathan M SmiejaClifford P Kubiak
Feb 24, 2015·Inorganic Chemistry·Alex E CarpenterJoshua S Figueroa

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Citations

Nov 2, 2016·Journal of the American Chemical Society·Douglas W AgnewJoshua S Figueroa
Sep 22, 2016·Chemistry : a European Journal·Stefan PeltiesRobert Wolf
May 10, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Douglas W AgnewJoshua S Figueroa
Oct 27, 2016·Angewandte Chemie·Ryan J SchwammChristopher M Fitchett
Aug 3, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Charles C MokhtarzadehJoshua S Figueroa
Nov 9, 2016·Chemical Communications : Chem Comm·Brandon R Barnett, Joshua S Figueroa
Aug 28, 2019·Chemistry : a European Journal·Ryan J Schwamm, Martyn P Coles
Jan 1, 2016·Chemical Science·Yusuke SunadaTakeaki Iwamoto
Apr 26, 2016·Chemical Communications : Chem Comm·Stefan PeltiesRobert Wolf
May 23, 2020·Chemical Communications : Chem Comm·Federico SalsiUlrich Abram
Sep 8, 2019·Journal of the American Chemical Society·Charles C MokhtarzadehJoshua S Figueroa
Jun 30, 2019·Inorganic Chemistry·Karthika J KadasseryDavid C Lacy

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