Metal complexes of the nanosized ligand N-benzoyl-N′-(p-amino phenyl) thiourea: Synthesis, characterization, antimicrobial activity and the metal uptake capacity of its ligating resin
摘要:
The new nanosized N-benzoyl-N'-(p-amino phenyl) thiourea ligand H2L was synthesized by nano-precipitation method. The [Cu (H2L)(2) Cl]center dot 2H(2)O, [Zn (H2L)(2)(OAc)(2)], [Cd (H2L)(2)Cl-2] and [Hg (H2L)2Cl(2)] complexes were synthesized and characterized by various physicochemical methods. Results revealed that the ligand act as hypodentate and bonded to the metal ion via the sulfur atom forming mononuclear non-electrolyte diamagnetic complex. Magnetic moment results indicated a reduction of Cu (II) to Cu (I) during the coordination process. Thermal studies demonstrated variable stabilities of the complexes and [Zn (H2L)(2)(OAc)(2)] exhibited the highest thermal stability while [Hg (H2L)(2)Cl-2] was volatile. The prepared compounds were screened against different pathogenic microorganisms. The ligand performed high antibacterial activity against certain bacterial strain compared to its complexes, and the standard bacteriocide in use. The ligand was successfully immobilized on modified Amberlite XAD-16 forming the hypodentate ligating resin PS-SO2-H2L. The new resin was characterized and the extent of metal adsorption reached maximum at pH 6.0 for Cu (II), Cd (II) and Ag (I), with an adsorption amount of 43, 4.0 and 3.7 mmol g(-1) respectively. The nanosized H2L represents a new category of promising adsorbent that would have a practical impact on biological and water treatment applications. (C) 2015 Elsevier B.V. All rights reserved.
SARKIS, G. Y.;FAISAL, E. D., J. HETEROCYCL. CHEM., 1985, 22, N 1, 137-140
作者:SARKIS, G. Y.、FAISAL, E. D.
DOI:——
日期:——
ADHESIVE COMPOSITIONS
申请人:Henkel AG & Co. KGaA
公开号:EP3612609B1
公开(公告)日:2022-12-28
Metal complexes of the nanosized ligand N-benzoyl-N′-(p-amino phenyl) thiourea: Synthesis, characterization, antimicrobial activity and the metal uptake capacity of its ligating resin
作者:Amel F. Elhusseiny、Ali Eldissouky、Ahmed M. Al-Hamza、Hammed H.A.M. Hassan
DOI:10.1016/j.molstruc.2015.07.049
日期:2015.11
The new nanosized N-benzoyl-N'-(p-amino phenyl) thiourea ligand H2L was synthesized by nano-precipitation method. The [Cu (H2L)(2) Cl]center dot 2H(2)O, [Zn (H2L)(2)(OAc)(2)], [Cd (H2L)(2)Cl-2] and [Hg (H2L)2Cl(2)] complexes were synthesized and characterized by various physicochemical methods. Results revealed that the ligand act as hypodentate and bonded to the metal ion via the sulfur atom forming mononuclear non-electrolyte diamagnetic complex. Magnetic moment results indicated a reduction of Cu (II) to Cu (I) during the coordination process. Thermal studies demonstrated variable stabilities of the complexes and [Zn (H2L)(2)(OAc)(2)] exhibited the highest thermal stability while [Hg (H2L)(2)Cl-2] was volatile. The prepared compounds were screened against different pathogenic microorganisms. The ligand performed high antibacterial activity against certain bacterial strain compared to its complexes, and the standard bacteriocide in use. The ligand was successfully immobilized on modified Amberlite XAD-16 forming the hypodentate ligating resin PS-SO2-H2L. The new resin was characterized and the extent of metal adsorption reached maximum at pH 6.0 for Cu (II), Cd (II) and Ag (I), with an adsorption amount of 43, 4.0 and 3.7 mmol g(-1) respectively. The nanosized H2L represents a new category of promising adsorbent that would have a practical impact on biological and water treatment applications. (C) 2015 Elsevier B.V. All rights reserved.
Structure-Based Drug Design and Synthesis of Novel <i>N</i>-Aryl-2,4-bithiazole-2-amine CYP1B1-Selective Inhibitors in Overcoming Taxol Resistance in A549 Cells
12-dimethylbenz[a]anthracene (DMBA) enhanced Taxol resistance and promoted migration/invasion of A549 and H460 cells likely stemming from CYP1B1 upregulation. Moreover, 83 novel N-aryl-2,4-bithiazole-2-amine CYP1B1-selective inhibitors were designed and synthesized to verify the role of CYP1B1 in Taxol-resistant A549cells. Impressively, the most potent and selective one, namely, 77, remarkably inhibited AKT/ERK1/2