Crystal structure and Hirshfeld surface analysis of a copper(II) complex containing 2-nitrobenzoate and tetramethylethylenediamine ligands

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Kansiz S., Qadir A. M., DEGE N., Li Yongxin L. Y., Saif E.

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, cilt.77, ss.412-419, 2021 (ESCI) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 77
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1107/s2056989021002802
  • Dergi Adı: ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus
  • Sayfa Sayıları: ss.412-419
  • Anahtar Kelimeler: crystal structure, copper(II), tetramethylethylenediamine, 2-nitrobenzoate, Hirshfeld surface
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

The reaction of copper(II) sulfatepentahydrate with 2-nitrobenzoic acid and N,N,N',N'-tetramethylethylenediamine (TMEDA) in basic solution produces the complex bis(2-nitrobenzoato-kappa O)(N,N,N',N'-tetramethylethylenediamine-kappa N-2,N')copper(II), [Cu(C7H4NO4)(2)(C6H16N2)] or [Cu(2-nitrobenzoate)(2)-(tmeda)]. Each carboxylate group of the 2-nitrobenzoate ligand is coordinated by Cu-II atom in a monodentate fashion and two TMEDA ligand nitrogen atoms are coordinate by the metal center, giving rise to a distorted square-planar coordination environment. In the crystal, metal complexes are linked by centrosymmetric C-H center dot center dot center dot O hydrogen bonds, forming ribbons via a R-2(2)(10) ring motif. These ribbons are linked by further C-H center dot center dot center dot O hydrogen bonds, leading to two-dimensional hydrogen-bonded arrays parallel to the be plane. Weak pi-pi stacking interactions provide additional stabilization of the crystal structure. Hirshfeld surface analysis, d(norm) and two-dimensional fingerprint plots were examined to verify the contributions of the different intermolecular contacts within the supramolecular structure. The major interactions of the complex are O center dot center dot center dot H/H center dot center dot center dot O (44.9%), H center dot center dot center dot H (34%) and C center dot center dot center dot H (14.5%).