Cobalt(II) metamagnet built from ferromagnetic chains with mixed bis(azido)(carboxylate) bridges
2012
Abstract A new one-dimensional Co(II) coordination polymer, Co(L)(N 3 ) 2 (L = pyridinio-N-acetate), has been synthesized by a diffusion method and characterized by single crystal X-ray diffraction. In the compound, Co(II) ions are linked by mixed triple bridges (two end-on azides and a syn–syn carboxylate), which transmit ferromagnetic coupling with J = 13.96 cm − 1 . The compound exhibits field-induced metamagnetic behaviors below T N = 2.3 K with Hc = 100 Oe, due to weak antiferromagnetic interactions between chains.
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