Synthesis and physico-chemical studies of a novel cobalt hybrid material containing diammoniumcyclohexane as a template
Year: 2025
Type: article
Abstract: A new hybrid compound (C 6 H 10 (NH 3 ) 2 ) 2 [CoBr 4 ].Br 2 .H 2 O was synthesized by the slow evaporation method from cobalt bromide and diaminocyclohexane. Single crystal X-ray diffraction reveals that the newly prepared hybrid material crystallizes in the monoclinic system with space group P 2 1 /c . Its structure consists of isolated [CoBr4] 2- tetrahedra, diammoniumcyclohexane cations, water molecule and free bromide anions, all interconnected through classical and specific hydrogen bonds. To better understand the contribution of these interactions in structural cohesion, Hirshfeld surface analysis was performed. The vibrational properties were investigated using infrared and Raman spectroscopies, allowing the assignment of the vibrational modes. Differential scanning calorimetry (DSC) showed a phase transition at 327 K. The electrical properties were examined by impedance spectroscopy, dielectric study and modulus analysis. The M"/M"max indicates that the charge transport occurs via a proton-hopping mechanism. The UV–visible spectroscopy uncovered an intense absorption band, attributed to Charge Transfer mechanism.
Source: Journal of Molecular Structure
Authors: Amal Tounsi, Besma Hamdi
Institution: University of Sfax
Language: English
Subfield: Inorganic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,360
Funder: Université de Sfax
OpenAlex ID: W4416092608