Synthesis and Characterization of Cu(II), Zn(II) Dendritic Metal Complexes

2010 ◽  
Vol 160-162 ◽  
pp. 529-535 ◽  
Author(s):  
Jun Wang ◽  
Peng Zhang ◽  
Shuai Chen ◽  
Cui Qin Li

A new kind of dendritic-salicylaldehydeimine ligand was synthesized with 1.0G polyamidoamine and salicylaldehyde through schiff reaction, and further formed two kinds of dendritic metal complexes by complexing Cu and Zn. The dendritic-salicylaldehydeimine ligand and its metal complexes were characterized by elemental analysis, IR, NMR and UV. The results indicate that two kinds of dendritic metal complexes with stable structure have been synthesized by complexing Cu and Zn, the yield were 88.2% and 65.2% respectively; Intra-molecular hydrogen bond between the hydroxyl H atom of ph-OH and the N atom of >C=N- has been formed in the ligand; The structures of complexes agree well with the theory.

Author(s):  
Ankita A. Bhalu ◽  
Kalpesh Vilapara ◽  
Minaxi Maru ◽  
Manish Shah

N-(3-Bromo-4-hydroxy-5-methoxybenzylidene)-4-Bromobenzenamine was synthesized. This was further used to synthesize Co(II), Ni(II) and Co(II) based metal complexes and characterized by FT-IR, Elemental analysis, ESI Mass and UV spectroscopy.


Author(s):  
Hayder Obaid Jamel ◽  
Najat jawad Al-Obaidi

This work includes preparation of the new ligand 5- (1-benzoimidazol-2-ylamino)-1, 3, 4-thiadiazole-2-thiol (BIATT) by the reaction of 5-Amino-2-thio-1, 3, 4-thiadiazole with 2-mercaptobenzoimidazole by refluxin 1, 4-dioxane as solvent. The metal complexes of the ligand were prepared with metals chlorides of Co (II), Ni (II), Cu (II), Zn (II) and Cd (II) in ethanol as solvent. The ligand (L) and its metal complexes have been characterized by elemental analysis (C.H.N.),IR,1H-NMR and UV­- Vis. spectra, magnetic susceptibility measurements ,molar conductivity, melting points and atomic absorption. The metal-ligand ratio was determined by mole ratio method.The suggested structures for the Co (II), Ni (II) and Cu (II) complexes are octahedral geometry andfor the Zn (II) and Cd (II) complex are tetrahedral geometry.


2021 ◽  
Author(s):  
Shu bin Li ◽  
Xiao Wang ◽  
Jiang Zhu ◽  
Zhenyu Wang ◽  
Lu Wang

In this work, using carboxyl-modified Fe3O4 nanoparticles as a photothermal agent, combining the chemical amide bond and intermolecular hydrogen bond crosslinking force, a photothermal hydrogel with enhanced mechanical properties was...


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