Synthesis and Reactivity of 1-[(2-methoxy)benzene]- 3-[benzothiazole]Triazene With Copper(II) or Cobalt(II) Chloride
摘要:
A new triazene, 1-[(2-methoxy)benzene]-3-[benzothiazole] triazene (HL), has been synthesized and charaterized. In the presence of Et3N, the reaction of HL and CuCl2 center dot 2H(2)O or CoCl2 center dot 6H(2)O gives the triazenide complexes [Cu4L'(4)(mu-OMe)(4)] 1 (L' 1-[benzothiazole] triazene ion) and [Co2L4] 2, respectively. The X-ray crystal structures of both complexes have been obtained. Magnetic studies indicate significant antiferromagnetic coupling between the copper(II) centers or cobalt(II) centers for complexes 1 and 2, with coupling constants (J) of -587 cm(-1) for 1 and -147 cm(-1) for 2. Complex 2 shows one reversible one-electron redox wave at -0.835 V, and one irreversible oxidation at -0.193 V, which are in accord with the redox potentials of [Co-III-Co-II]/[Co-II-Co-II] and [Co-III-Co-III]/[Co-II-Co-II] couples, respectively.