New Cu(II), Co(II), and Ni(II) complexes with thieno[2,3-b]pyridine and 2-methylthieno[2,3-b]pyridine as ligands: Synthesis and crystal structures
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Ján Halgaš
,
Viera Kolenová
Abstract
Although thienopyridines attract attention because of their biological activities, they have not been used as ligands in coordination compounds. Thieno[2,3-b]pyridine was prepared by known procedures; by reduction of 2-nitrothiophene, and reaction of the resulting 2-thienyl ammonium salt with malondialdehyde tetramethylacetal in the presence of zinc chloride. The same procedure was used for the preparation of a new derivative, 2-methylthieno[2,3-b]pyridine, starting from 2-methyl-5-nitrothiophene. The thienopyridines were used in the synthesis of coordination compounds. Chlorides, isothiocyanates, acetates, and chloroacetates of copper(II), nickel(II), or cobalt(II) were used as starting salts. The prepared complexes were characterized by elemental analysis and FT IR. Structures of the four complexes were determined by single-crystal X-ray diffraction analysis.
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© 2008 Institute of Chemistry, Slovak Academy of Sciences
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Artikel in diesem Heft
- Application of isotachophoretic and conductometric methods for neomycin trisulphate determination
- A rhodamine-based Hg2+-selective fluorescent probe in aqueous solution
- A simple flow injection spectrophotometric determination method for iron(III) based on O-acetylsalicylhydroxamic acid complexation
- Global optimization for parameter estimation of differential-algebraic systems
- Effect of ethyl acetate on carbohydrate components and crystalline structure of pulp produced in aqueous acetic acid pulping
- Effects of acyl donor type, catalyst type, and reaction conditions on the activity and selectivity of Friedel-Crafts acylation
- Intramolecular MLOH/π and MLNH/π interactions in crystal structures of metal complexes
- A strategy for new macrocycle magnetic materials synthesis
- Rearrangement of N-(3-pyridyl)nitramine
- New Cu(II), Co(II), and Ni(II) complexes with thieno[2,3-b]pyridine and 2-methylthieno[2,3-b]pyridine as ligands: Synthesis and crystal structures
- Synthesis of saccharide precursors for preparation of potential inhibitors of glycosyltranferases
- Simultaneous spectrophotometric determination of minoxidil and tretinoin by the H-point standard addition method and partial least squares
- Adsorption and release of terbinafine hydrochloride: Effects of adsorbents, additives, pH, and temperature
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