Quinoxaline radical-bridged transition metal complexes with very strong antiferromagnetic coupling. Issue 64 (9th July 2020)

• Record Type: Journal Article
• Authors: Alexandropoulos, Dimitris I.; Vignesh, Kuduva R.; Xie, Haomiao; Dunbar, Kim R.
• Is Part Of: Chemical communications. Volume 56:Issue 64(2020)
• Page Start: 9122
• Page End: 9125
• Publication Date: 2020-07-09
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d0cc03713c
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Synthesis, magnetic studies and, theoretical calculations of a new family of transition metal complexes bridged by a quinoxaline-based radical. Abstract : A new family of radical-bridged compounds, (Cp*2 Co)[M2 Cl4 (dpq)] (M = Fe (1 ), Co (2 ), Zn (3 )), (dpq = 2, 3-di(2-pyridyl)-quinoxaline) is reported. Magnetic studies, DFT and ab initio calculations reveal strong antiferromagnetic metal–radical interactions with coupling constants of J = −213.1 and −218.8 cm −1 for 1 and 2, respectively.