Synthesis and Molecular Structure of Zwitterionic Complexes of Phenothiazine-5-oxide Derivatives Coordinated with Cobalt(II) and Copper(II) Ions

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The synthesis and characterization of Co(II)CI_2 and Cu(II)Cl_2 complexes with 2-chloro-10-(3-dimethylaminopropyl)phenothiazine-5-oxide hydrochloride (cpz(O)HCl) and three related compounds are described. The crystal structures of the complexes [CoCl_3cpz(O)H] (1) and [CuCl_3 cpz(O)H] (2) were determined by single-crystal X-ray diffraction analyses. 1 crystallizes in the monoclinic space group P2_1/c with a=8.150(1), b=17.763(2), c=14.630(2) Å, β=103.93(1)°, V=2055.8(3) Å^3,and Z=4. 2 crystallizes in the monoclinic space group P2_1/c with a=8.141(1), b=17.175(4), c=14.810(3) Å, β=103.27(1)°, V=2015.5(7) Å^3,and Z=4. The metal atoms in both complexes are coordinated in a tetrahedral geometry and the two complexes are arranged in a head-to-tail manner to form a dimer.
1993-10-15