Details

Autor(en) / Beteiligte

• Al-Karawi, Ahmed Jasim M.
• OmarAli, Al-Ameen Bariz
• Dege, Necmi
• Kansız, Sevgi

Titel

Formation of a new CuII–triazole ester complex from 1,2-cyclohexanedione-bis(p-bromobenzohydrazone) compound as a consequence of copper(II)-catalyzed click reaction

Ist Teil von

• Chemical papers, 2021-08, Vol.75 (8), p.3901-3914

Ort / Verlag

Warsaw: Versita

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Reaction of 1,2-cyclohexanedione-bis( p -bromobenzohydrazone) ( CBB ) as a bis-aroyl-hydrazone derivative with copper(II) nitrate trihydrate in acetonitrile under ambient conditions produced a mononuclear Cu(II) complex [Cu(TE)(NO 3 ) 2 ] (TE: triazole-ester) ( 1 ). TE is an intermediate which is formed in situ during the oxidation of CBB by Cu(II) ion based on so-called copper(II)-catalyzed click reaction. CBB and 1 are characterized with various techniques. On the basis of single-crystal X-ray crystallography, compound 1 is confirmed as a 4-coordinate mononuclear Cu(II) complex with a distorted square planner geometry. In this compound, copper is bound to the 1-N of two monodentate triazole ester molecules and two monodentate nitrate ions. Moreover, the antimicrobial activity of CBB and 1 against some selected pathogenic bacteria was investigated. Due to this study, these compounds showed a good antibacterial activity. In addition, the Hirshfeld surface analysis ( d norm surface and two-dimensional fingerprint plots) was performed to reveal the nature of intermolecular interactions in CBB and 1 . The most important contributions for the crystal packing of CBB are mainly from H…H (28.8%), Br…H/H…Br (23.2%) and C…H/H…C (19.5%) interactions, while the most important contributions for the crystal packing of 1 are found to be from H…H (27%), O…H/H…O (23.7%) and Br…H/H…Br (19%) interactions.