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Abstract <p>Interaction of tet-a (an isomeric ligand of Me<sub>6</sub>[14]ane) with an excess of acrylonitrile yielded an <i>N</i>-pendent derivative, tet-ax in which two cyanoethyl groups were attached on less crowded two <i>trans</i>-N atoms. Reactions of nickel(II) acetate tetrahydrate followed by subsequent addition of NaClO<sub>4</sub>·6H<sub>2</sub>O, copper(II) perchlorate hexahydrate and cobalt(II) acetate tetrahydrate followed by the addition of HCl [in case of cobalt(III) complex] with tet-ax produced four coordinated square planar orange [Ni(tet-ax)](ClO<sub>4</sub>)<sub>2</sub>, six coordinated octahedral red [Cu(tet-ax)(ClO<sub>4</sub>)<sub>2</sub>] and six coordinated green <i>trans</i>-[Co(tet-ax)Cl<sub>2</sub>]Cl complex, respectively. The axial substitution reactions on [Cu(tet-ax)(ClO<sub>4</sub>)<sub>2</sub>] with MX (M = K/Na, X = NCS, NO<sub>3</sub>, NO<sub>2</sub>, Cl, Br, or I) resulted in six coordinated octahedral axial substitution products, blue [Cu(tet-ax)(NCS)(ClO<sub>4</sub>)], [Cu(tet-ax)(NO<sub>3</sub>)(H<sub>2</sub>O)]ClO<sub>4</sub>, and [Cu(tet-ax)(NO<sub>2</sub>)(H<sub>2</sub>O)]ClO<sub>4</sub>, violet [Cu(tet-ax)Cl(H<sub>2</sub>O)]ClO<sub>4</sub> and [Cu(tet-ax)Br(H<sub>2</sub>O)]ClO<sub>4</sub> and green [Cu(tet-ax)I(H<sub>2</sub>O)]ClO<sub>4</sub> respectively. All the newly formed compounds have been characterized by using different modern techniques. The antimicrobial activities of this new <i>N</i>-pendent derivative tet-ax and its metal complexes have been investigated against different bacteria and fungi.</p>

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Metal Complexes of Cyanoethyl Derivative of a Macrocyclic Chelator: Synthesis, Characterization and Antimicrobial Investigation

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • L. Dey,
  • S. Rabi,
  • P. Paul,
  • A. Chakraborty,
  • P. Sarker,
  • M. R. Roy,
  • D. Palit,
  • T. G. Roy

摘要

Abstract

Interaction of tet-a (an isomeric ligand of Me6[14]ane) with an excess of acrylonitrile yielded an N-pendent derivative, tet-ax in which two cyanoethyl groups were attached on less crowded two trans-N atoms. Reactions of nickel(II) acetate tetrahydrate followed by subsequent addition of NaClO4·6H2O, copper(II) perchlorate hexahydrate and cobalt(II) acetate tetrahydrate followed by the addition of HCl [in case of cobalt(III) complex] with tet-ax produced four coordinated square planar orange [Ni(tet-ax)](ClO4)2, six coordinated octahedral red [Cu(tet-ax)(ClO4)2] and six coordinated green trans-[Co(tet-ax)Cl2]Cl complex, respectively. The axial substitution reactions on [Cu(tet-ax)(ClO4)2] with MX (M = K/Na, X = NCS, NO3, NO2, Cl, Br, or I) resulted in six coordinated octahedral axial substitution products, blue [Cu(tet-ax)(NCS)(ClO4)], [Cu(tet-ax)(NO3)(H2O)]ClO4, and [Cu(tet-ax)(NO2)(H2O)]ClO4, violet [Cu(tet-ax)Cl(H2O)]ClO4 and [Cu(tet-ax)Br(H2O)]ClO4 and green [Cu(tet-ax)I(H2O)]ClO4 respectively. All the newly formed compounds have been characterized by using different modern techniques. The antimicrobial activities of this new N-pendent derivative tet-ax and its metal complexes have been investigated against different bacteria and fungi.