Synthesis and structural features of copper(II) complexes of N,N,N′,N′-tetramethylethylenediamine with 2-chlorobenzoate1− and 2-hydroxybenzoate1−

Syeda Shahzadi Batool* (Corresponding Author), Syeda Rubina Gilani, Muhammad Nawaz Tahir, William T.A. Harrison, Liviu Mitu, Sania Mazharr

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Two copper(II) coordination complexes, formulated as [Cu(tmen)(Clba)2] (1) and [Cu(tmen)(Hsal)2·H2O] (2) (where tmen = N,N,N′,N′-tetramethyl ethylenediamine (C6H16N2), Clba1− = 2-chlorobenzoate (C7H4ClO2 1−), and Hsal1− (C7H5O3 1− = monoanion of o-hydroxybenzoic acid (salicylic acid)), have been synthesized and characterized by elemental combustion analysis, spectroscopic techniques, thermal studies, and single crystal X-ray analyses. Complex 1 consists of two distinct monomeric units in which the coordination environment around the central copper(II) ion is a distorted octahedron with a CuN2O4 chromophore, constituted by a chelating tmen molecule, and two 2-chlorobenzoate1− anions coordinated through their carboxylate-O atoms in an asymmetrical bidentate fashion. Complex 2 is also a monomer and consists of an CuN2O3 chromophore, in which tmen is coordinated to Cu(II) through its two N atoms in a chelating bidentate fashion, and an aqua-O and the two o-hydroxybenzoate1− (HSal1−) anions are coordinated through one of their carboxylate-O atoms in a monodentate mode, forming a square pyramidal structure. Hydrogen bonding interactions especially of O–H…O, N–H…O, and C–H…Cl types interweave monomeric units and stabilize the overall crystal structures in both complexes. Thermal analysis and antibacterial activities of 1 and 2 against various bacterial strains were also investigated.

Original languageEnglish
Pages (from-to)2569-2583
Number of pages15
JournalJournal of Coordination Chemistry
Volume71
Issue number16-18
DOIs
Publication statusPublished - 2018

Fingerprint

Copper
ethylenediamine
Salicylic Acid
Chromophores
Chelation
copper
Atoms
carboxylates
chromophores
Anions
Negative ions
synthesis
anions
atoms
Salicylic acid
acids
Spectroscopic analysis
Coordination Complexes
spectroscopic analysis
Thermoanalysis

Keywords

  • 2-chlorobenzoate
  • Copper(II) carboxylate
  • N,N,N′,N′-tetramethylethylenediamine
  • salicylate
  • supramolecular architectures

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

Synthesis and structural features of copper(II) complexes of N,N,N′,N′-tetramethylethylenediamine with 2-chlorobenzoate1− and 2-hydroxybenzoate1−. / Batool, Syeda Shahzadi (Corresponding Author); Gilani, Syeda Rubina; Tahir, Muhammad Nawaz; Harrison, William T.A.; Mitu, Liviu; Mazharr, Sania.

In: Journal of Coordination Chemistry, Vol. 71, No. 16-18, 2018, p. 2569-2583.

Research output: Contribution to journalArticle

Batool, Syeda Shahzadi ; Gilani, Syeda Rubina ; Tahir, Muhammad Nawaz ; Harrison, William T.A. ; Mitu, Liviu ; Mazharr, Sania. / Synthesis and structural features of copper(II) complexes of N,N,N′,N′-tetramethylethylenediamine with 2-chlorobenzoate1− and 2-hydroxybenzoate1−. In: Journal of Coordination Chemistry. 2018 ; Vol. 71, No. 16-18. pp. 2569-2583.
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title = "Synthesis and structural features of copper(II) complexes of N,N,N′,N′-tetramethylethylenediamine with 2-chlorobenzoate1− and 2-hydroxybenzoate1−",
abstract = "Two copper(II) coordination complexes, formulated as [Cu(tmen)(Clba)2] (1) and [Cu(tmen)(Hsal)2·H2O] (2) (where tmen = N,N,N′,N′-tetramethyl ethylenediamine (C6H16N2), Clba1− = 2-chlorobenzoate (C7H4ClO2 1−), and Hsal1− (C7H5O3 1− = monoanion of o-hydroxybenzoic acid (salicylic acid)), have been synthesized and characterized by elemental combustion analysis, spectroscopic techniques, thermal studies, and single crystal X-ray analyses. Complex 1 consists of two distinct monomeric units in which the coordination environment around the central copper(II) ion is a distorted octahedron with a CuN2O4 chromophore, constituted by a chelating tmen molecule, and two 2-chlorobenzoate1− anions coordinated through their carboxylate-O atoms in an asymmetrical bidentate fashion. Complex 2 is also a monomer and consists of an CuN2O3 chromophore, in which tmen is coordinated to Cu(II) through its two N atoms in a chelating bidentate fashion, and an aqua-O and the two o-hydroxybenzoate1− (HSal1−) anions are coordinated through one of their carboxylate-O atoms in a monodentate mode, forming a square pyramidal structure. Hydrogen bonding interactions especially of O–H…O, N–H…O, and C–H…Cl types interweave monomeric units and stabilize the overall crystal structures in both complexes. Thermal analysis and antibacterial activities of 1 and 2 against various bacterial strains were also investigated.",
keywords = "2-chlorobenzoate, Copper(II) carboxylate, N,N,N′,N′-tetramethylethylenediamine, salicylate, supramolecular architectures",
author = "Batool, {Syeda Shahzadi} and Gilani, {Syeda Rubina} and Tahir, {Muhammad Nawaz} and Harrison, {William T.A.} and Liviu Mitu and Sania Mazharr",
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year = "2018",
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pages = "2569--2583",
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T1 - Synthesis and structural features of copper(II) complexes of N,N,N′,N′-tetramethylethylenediamine with 2-chlorobenzoate1− and 2-hydroxybenzoate1−

AU - Batool, Syeda Shahzadi

AU - Gilani, Syeda Rubina

AU - Tahir, Muhammad Nawaz

AU - Harrison, William T.A.

AU - Mitu, Liviu

AU - Mazharr, Sania

N1 - Published online 22 Jan 2019.

PY - 2018

Y1 - 2018

N2 - Two copper(II) coordination complexes, formulated as [Cu(tmen)(Clba)2] (1) and [Cu(tmen)(Hsal)2·H2O] (2) (where tmen = N,N,N′,N′-tetramethyl ethylenediamine (C6H16N2), Clba1− = 2-chlorobenzoate (C7H4ClO2 1−), and Hsal1− (C7H5O3 1− = monoanion of o-hydroxybenzoic acid (salicylic acid)), have been synthesized and characterized by elemental combustion analysis, spectroscopic techniques, thermal studies, and single crystal X-ray analyses. Complex 1 consists of two distinct monomeric units in which the coordination environment around the central copper(II) ion is a distorted octahedron with a CuN2O4 chromophore, constituted by a chelating tmen molecule, and two 2-chlorobenzoate1− anions coordinated through their carboxylate-O atoms in an asymmetrical bidentate fashion. Complex 2 is also a monomer and consists of an CuN2O3 chromophore, in which tmen is coordinated to Cu(II) through its two N atoms in a chelating bidentate fashion, and an aqua-O and the two o-hydroxybenzoate1− (HSal1−) anions are coordinated through one of their carboxylate-O atoms in a monodentate mode, forming a square pyramidal structure. Hydrogen bonding interactions especially of O–H…O, N–H…O, and C–H…Cl types interweave monomeric units and stabilize the overall crystal structures in both complexes. Thermal analysis and antibacterial activities of 1 and 2 against various bacterial strains were also investigated.

AB - Two copper(II) coordination complexes, formulated as [Cu(tmen)(Clba)2] (1) and [Cu(tmen)(Hsal)2·H2O] (2) (where tmen = N,N,N′,N′-tetramethyl ethylenediamine (C6H16N2), Clba1− = 2-chlorobenzoate (C7H4ClO2 1−), and Hsal1− (C7H5O3 1− = monoanion of o-hydroxybenzoic acid (salicylic acid)), have been synthesized and characterized by elemental combustion analysis, spectroscopic techniques, thermal studies, and single crystal X-ray analyses. Complex 1 consists of two distinct monomeric units in which the coordination environment around the central copper(II) ion is a distorted octahedron with a CuN2O4 chromophore, constituted by a chelating tmen molecule, and two 2-chlorobenzoate1− anions coordinated through their carboxylate-O atoms in an asymmetrical bidentate fashion. Complex 2 is also a monomer and consists of an CuN2O3 chromophore, in which tmen is coordinated to Cu(II) through its two N atoms in a chelating bidentate fashion, and an aqua-O and the two o-hydroxybenzoate1− (HSal1−) anions are coordinated through one of their carboxylate-O atoms in a monodentate mode, forming a square pyramidal structure. Hydrogen bonding interactions especially of O–H…O, N–H…O, and C–H…Cl types interweave monomeric units and stabilize the overall crystal structures in both complexes. Thermal analysis and antibacterial activities of 1 and 2 against various bacterial strains were also investigated.

KW - 2-chlorobenzoate

KW - Copper(II) carboxylate

KW - N,N,N′,N′-tetramethylethylenediamine

KW - salicylate

KW - supramolecular architectures

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