Spin Canting in a Cobalt(II) Radical Complex with an Acentric Counter Anion

✍ Scribed by Kiyotaka Mitsumoto; Takuya Shiga; Motohiro Nakano; Masayuki Nihei; Hiroyuki Nishikawa; Hiroki Oshio

• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 401 KB
• Volume: 2008
• Category: Article
• ISSN: 1434-1948
• DOI: 10.1002/ejic.200800824

✦ Synopsis

Abstract

Cobalt(II) radical complexes with centric and acentric counter anions, [CoCl(bisimpy)(MeOH)~2~]X [bisimpy = 2,6‐bis(4′,4′,5′,5′‐tetramethyl‐4′,5′‐dihydro‐1′H‐imidazol‐1′‐oxyl‐2′‐yl)pyridine; X = PF~6~ (1), and ClO~4~ (2)], crystallize in the centrosymmetric and polar space groups, respectively. Compound 1 is paramagnetic, whereas spin canting in 2 leads to a metamagnetic transition with a critical field of 1300 Oe at 1.8 K. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)