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Structures and Characterization of [Zn(n-chlorosalicylato)2(N-methylnicotinamide)2(H2O)2] (n = 4 or 5) Ligand Isomers

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Abstract

Two ligand isomers [Zn{4-ClC6H3-2-(OH)COO}2(Menia)2(H2O)2] (I) and [Zn{5-ClC6H3-2-(OH)COO}2(Menia)2(H2O)2] (II) (Menia = N-methylnicotinamide) were prepared and characterized by elemental analysis, IR spectroscopy and thermal analysis. The X-ray crystal structures of complexes (I) and (II) were determined. Compound (I) crystallizes in the triclinic space group \( P\bar{1} \) with a = 8.105(1) Å, b = 10.036(2) Å, c = 10.545(2) Å, α = 109.088(9)°, β = 91.416(8)°, γ = 102.757(9)°, V = 786.2(2) Å3, Z = 1. Compound (II) crystallizes in the triclinic space group \( P\bar{1} \). Its cell parameters are: a = 8.133(1) Å, b = 10.119(2) Å, c = 10.428(1) Å, α = 66.44(1)°, β = 74.32(1)°, γ = 80.16(1)°, V = 755.5(2) Å3, Z = 1. The molecular structure of both isomers is monomeric. Each Zn(II) atom is hexacoordinated by three pairs of unidentate ligands in trans-positions (ZnO4N2). The 5-Clsal complex is somewhat less distorted than 4-Clsal complex (Cl-sal = chlorosalicylate). The structural data are compared with those found in similar [Zn(RCOO)2(NL)2(H2O)2].

Graphical Abstract

Two ligand isomers [Zn{4-ClC6H3-2-(OH)COO}2(Menia)2(H2O)2] (I) and [Zn{5-ClC6H3-2-(OH)COO}2(Menia)2(H2O)2] (II) (Menia = N-methylnicotinamide) have been prepared and characterized by elemental analysis, IR spectroscopy, thermal analysis and X-ray analysis

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Acknowledgments

Financial support of the Slovak Ministry of Education (VEGA project No. 1/0122/08) is gratefully acknowledged.

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Authors and Affiliations

  1. Institute of Chemistry, P.J. Šafárik University, Moyzesova 11, 041 54, Košice, Slovak Republic

    Zuzana Bujdošová & Katarína Győryová

  2. Department of Chemical Theory of Drugs, Faculty of Pharmacy, Comenius University, Odbojárov 10, 832 32, Bratislava, Slovak Republic

    Milan Melník

  3. Department of Inorganic Chemistry, Slovak Technical University, Radlinského 9, 812 37, Bratislava, Slovak Republic

    Marian Koman

  4. Institute of Macromolecular Chemistry, AS CR, Heyrovského nám. 2, 162 06, Prague, Czech Republic

    Jana Kovářová

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  1. Zuzana Bujdošová
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  2. Katarína Győryová
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  3. Milan Melník
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  4. Marian Koman
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  5. Jana Kovářová
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Correspondence to Zuzana Bujdošová.

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Bujdošová, Z., Győryová, K., Melník, M. et al. Structures and Characterization of [Zn(n-chlorosalicylato)2(N-methylnicotinamide)2(H2O)2] (n = 4 or 5) Ligand Isomers. J Chem Crystallogr 41, 443–448 (2011). https://doi.org/10.1007/s10870-010-9898-0

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  • DOI: https://doi.org/10.1007/s10870-010-9898-0

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