Ferromagnetically coupled dinuclear MII complexes based on a boratriazine ligand framework. Issue 42 (3rd October 2018)

• Record Type: Journal Article
• Authors: Savard, Jamie M.; Brunet, Gabriel; Srinivasan, Anandi; Murugesu, Muralee; Brusso, Jaclyn L.
• Is Part Of: Dalton transactions. Volume 47:Issue 42(2018)
• Page Start: 14875
• Page End: 14879
• Publication Date: 2018-10-03
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c8dt03145b
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : The structural and magnetic properties of dinuclear Fe II and Co II complexes, synthesized through the targeted use of mer -coordinating boratriazine and azido bridging ligands are presented, which exhibit large spin ground states due to ferromagnetic interactions. Abstract : A boratriazine ligand, which incorporates attractive features from both bodipy and terpy, has been used to synthesize [Fe2 II ( μ 1, 1 -N3 )2 (Py2 F2 BTA)2 (N3 )2 ] (1 ) and [Co2 II ( μ 1, 1 -N3 )2 (Py2 F2 BTA)2 (N3 )2 ] (2 ). Both1 and2 feature a double end-on azido bridging motif, which promotes ferromagnetic interactions between the metal centres. Indeed, 1 represents the first report of a dinuclear Fe II complex with this bridging mode exhibiting J = 5.7(9) cm −1 and D = −6.0(4) cm −1, while the isostructural Co analogue shows J = 7.1(9) cm −1 and D = 17.3(9) cm −1 .