SciELO - Scientific Electronic Library Online

vol.32 issue2Synthesis, characterization and thermal studies on solid state 3-methoxybenzoate of lighter trivalent lanthanidesEvaluation of a carbon paste electrode modified with organofunctionalised SBA-15 silica in the determination of copper author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Eclética Química

Print version ISSN 0100-4670


STEPNIAK, K.; FERENC, W.; CRISTOVAO, B.  and  LIS, T.. Crystal structures of 5-chloro-2-methoxybenzoates of Mn(II), Co(II), Ni(II) and Zn(II). Eclet. Quím. [online]. 2007, vol.32, n.2, pp.23-28. ISSN 0100-4670.

The crystal and molecular structures of [bis(5-chloro-2-methoxybenzoate)tetraaquamanganese(II)], [pentaaqua(5-chloro-2-methoxybenzoato)cobalt(II)] (5-chloro-2-methoxybenzoate), [pentaaqua(5-chloro-2-methoxybenzoato)nickel(II)] (5-chloro-2-methoxybenzoate) and [aquabis(5-chloro-2-methoxybenzoate)zinc(II)] monohydrate were determined by a single-crystal X-ray analysis. Mn(H2O)4L2 (where L = C8H6ClO3) crystallizes in the monoclinic system, space group P21/c. [Co(H2O)5L]L and [Ni(H2O)5L]L both are isostructural, space group P212121. The crystals of [Zn(H2O)L2] H2O are monoclinic, space group Pc. Mn(II) ion is positioned at the crystallographic symmetry center. Mn(II) and Co(II) ions adopt the distorted octahedral coordination but Zn(II) tetrahedral one.The carboxylate groups in the complexes with M(II) cations function as monodentate, bidentate and/or free COO-groups. The ligands exist in the crystals as aquaanions. The complexes of 5-chloro-2-methoxybenzoates with Mn(II), Co(II) and Zn(II) form bilayer structure.

Keywords : crystal structure; 5-chloro-2-methoxybenzoates; magnetic moment.

        · text in English     · English ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License