scholarly journals Synthesis, spectroscopic characterization, crystal structure and Hirshfeld surface analysis of Co(III), Ni(II) and VO(IV) metal complexes with a novel Schiff base ligand and their antimicrobial activities

2019 ◽  
pp. 39-52 ◽  
Author(s):  
Disha Sharma ◽  
Hosakere D. Revanasiddappa
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Metal Complexes ◽  
Surface Analysis ◽  
Schiff Base Ligand ◽  
Spectroscopic Characterization ◽  
Antimicrobial Activities ◽  
Hirshfeld Surface ◽  
Hirshfeld Surface Analysis

scholarly journals An Unexpected Trinuclear Cobalt(II) Complex Based on a Half-Salamo-Like Ligand: Synthesis, Crystal Structure, Hirshfeld Surface Analysis, Antimicrobial and Fluorescent Properties

Crystals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 408 ◽  
Author(s):  
Ruo-Yan Li ◽  
Xiao-Xin An ◽  
Juan-Li Wu ◽  
You-Peng Zhang ◽  
Wen-Kui Dong
Keyword(s):  
Crystal Structure ◽  
Surface Analysis ◽  
Three Dimensional ◽  
Antimicrobial Activities ◽  
Hirshfeld Surface ◽  
Hirshfeld Surface Analysis ◽  
Fluorescent Properties ◽  
X Ray ◽  
X Ray Crystallography ◽  
Elemental Analyses

An unexpected trinuclear Co(II) complex, [Co3(L2)2(μ-OAc)2(CH3OH)2]·2CH3OH (H2L2 = 4,4′-dibromo-2,2′-[ethylenedioxybis(nitrilomethylidyne)]diphenol) constructed from a half-Salamo-based ligand (HL1 = 2-[O-(1-ethyloxyamide)]oxime-4-bromophenol) and Co(OAc)2·4H2O, has been synthesized and characterized by elemental analyses, infrared spectra (IR), UV-Vis spectra, X-ray crystallography and Hirshfeld surface analysis. The Co(II) complex contains three Co(II) atoms, two completely deprotonated (L2)2− units, two bridged acetate molecules, two coordinated methanol molecules and two crystalline methanol molecules, and finally, a three-dimensional supramolecular structure with infinite extension was formed. Interestingly, during the formation of the Co(II) complex, the ligand changed from half-Salamo-like to a symmetrical single Salamo-like ligand due to the bonding interactions of the molecules. In addition, the antimicrobial activities of HL1 and its Co(II) complex were also investigated.

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