For Better Performance Please Use Chrome or Firefox Web Browser

Dinuclear Ni (II) and Cu (II) complexes of 8‐quinoline‐1H‐pyrazole‐3‐carboxamide: crystal structure, magnetic properties, and DFT calculations

Authors
Gholamhossein Mohammadnezhad, Neda Ahfad, Soraia Meghdadi, Hossein Farokhpour, Simon Schmitz, Alexander Haseloer, Axel Buchholz, Winfried Plass, Axel Klein
Journal
European Journal of Inorganic Chemistry
Description
Homoleptic dinuclear complexes [M 2 (qpyzc) 2 ] (M = Cu ( 1 ) or Ni ( 2 ) were obtained from the readily synthesised trischelate pyrazole‐based qpyzc ligand (H 2 qpyzc = 8‐quinoline‐1 H ‐pyrazole‐3‐carboxamide). Their crystal and molecular structures, magnetic properties, and UV‐vis spectra were reported alongside with DFT and TD‐DFT calculations. Trigonality index τ’ 4 values of 0.25 and 0.21 for the Cu and Ni centres, respectively reveal a marked distortion from square planar geometry. The two metal coordination planes within a complex are tilted towards each other with 40.2(1)° for Cu(II) and 34.5(2)° for Ni(II). The central six‐membered M 2 N 4 metallocycle is almost planar and the two anionic pyrazolate rings are tilted towards each other by 37.4(1)° ( 1 ) and 38.5(2)° ( 2 ), respectively. Regardless of this peculiar bonding situation magnetic measurements on 1 are in line with medium‐sized …
Publications
Month/Season: 
Spring
Year: 
2021

تحت نظارت وف ایرانی

Dinuclear Ni (II) and Cu (II) complexes of 8‐quinoline‐1H‐pyrazole‐3‐carboxamide: crystal structure, magnetic properties, and DFT calculations | Dr. Gholamhossein Mohammadnezhad

Error

The website encountered an unexpected error. Please try again later.

تحت نظارت وف ایرانی