Synthesis and Characterization of Iron, Cobalt, and Nickel Complexes Bearing NovelN,N-Chelate Ligands and Their Catalytic Properties in Ethylene Oligomerization

2007 ◽  
Vol 2007 (17) ◽  
pp. 2477-2487 ◽  
Author(s):  
Li Wang ◽  
Cheng Zhang ◽  
Zhong-Xia Wang
Keyword(s):  
Catalytic Properties ◽  
Nickel Complexes ◽  
Ethylene Oligomerization ◽  
Synthesis And Characterization ◽  
Iron Cobalt ◽  
Chelate Ligands ◽  
Cobalt And Nickel

Progress in preparation and characterization of silylene iron, cobalt and nickel complexes

2021 ◽  
Author(s):  
Wenjing Yang ◽  
Yanhong Dong ◽  
Hongjian Sun ◽  
Xiaoyan Li
Keyword(s):  
Nickel Complexes ◽  
Electron Cloud ◽  
Synthesis And Characterization ◽  
Iron Cobalt ◽  
Cloud Density ◽  
Cobalt And Nickel

The synthesis and characterization of Fe, Co and Ni complexes supported by silylene ligands in recent ten years are summarized. Due to the decrease of electron cloud density on Si...

scholarly journals SYNTHESIS AND CHARACTERIZATION OF SOME HYDRAZINEDERIVATIVES WITH Α, Β UNSATURATED ACIDS

2015 ◽  
Vol 2 (2) ◽  
pp. 16-22
Author(s):  
Manimekalai R ◽  
Kalpanadevi K ◽  
Anjutha Prabha N ◽  
Raina O
Keyword(s):  
Metal Ion ◽  
Nickel Complexes ◽  
Synthesis And Characterization ◽  
Metal Carboxylate ◽  
X Ray Diffraction ◽  
X Ray ◽  
Diffraction Patterns ◽  
Dta Studies ◽  
Cobalt And Nickel

Metal cinnamate monohydrazinates of the formula M(cin)2N2H4, where M= Co or Zn, nickel crotante monohydrazinate monohydrate Ni(crot)2N2H4.H2O, metal cinnamate and crotonate dihydrazinates M(cin)2(N2H4)2 Where M = Co, Ni, Zn or Cd , M(crot)2(N2H4)2 Where M = Co or Ni and cadmium crotante dihydrazinate monohydrate Cd(crot)2(N2H4)2.H2O have been prepared and characterized by spectral, thermal and X-ray diffraction studies. Electronic spectra indicate that the cobalt and nickel complexes are high-spin octahedral complexes. The IR data show that the binding of hydrazine and the unsaturated carboxylate anion to the metal ion is bidentate. TG-DTA studies show that metal complexes undergo decomposition through metal carboxylate intermediate to give respective metal oxide as the final product. Xray powder diffraction patterns of the complexes indicate isomorphism among them.

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