Ultrasonic synthesis, XRD/HSA-interactions, DFT, time-dependence spectrophotometric stability and thermal analysis of the water-bridge {[Cu(phen)2Br]Br·H2O} complex
Publication Type
Original research
Authors

Abstract

The monocationic Cu-phen mononuclear complex was assembled under ultrasonic vibration in a high yield, the presence of one water-bridge connecting both inner with outer-sphere bromides in {[Cu(phen)2Br..]..H2O..Br} was confirmed by XRD-crystal measurement. Moreover, the complex was analyzed by CHN-EA, FT-IR, MS, EDX, UV–Vis., and TGA. The XRD-diffraction analyses indicated the formation of distorted square pyramid [CuBr(phen)2]Br·H2O complex geometry, where the uncoordinated H2O behaved as a bridge-molecule connecting outer-sphere Br- anion with inter-sphere one via two short hydrogen bonds. The thermal decomposition behavior via TG/DTG was also recorded. Moreover, to evaluate the complex stability over time in an aqueous medium the time-repentance spectrophotometric method was performed. The [CuBr(phen)2]Br DFT/B3LYP optimized parameters and Hirschfield surface analysis (HSA) computations were matched to the experimental XRD-structural parameters and XRD-packing results respectively in order to evaluate the accuracies of the B3LYP and HSA theory levels on such complexes.

Journal
Title
Ismail Warad
Publisher
Ismail Warad
Publisher Country
Palestine
Publication Type
Prtinted only
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Year
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Pages
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