Synthesis and properties of cobalt and nickel complexes with the tripod ligand tris(2-diphenylarsinoethyl)amine. Structural characterization of a .sigma.-phenyl complex of nickel(II) with the same ligand

1976 ◽  
Vol 15 (2) ◽  
pp. 325-329 ◽  
Author(s):  
L. Sacconi ◽  
P. Dapporto ◽  
P. Stoppioni

2021 ◽  
Author(s):  
Wenjing Yang ◽  
Yanhong Dong ◽  
Hongjian Sun ◽  
Xiaoyan Li

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...





2013 ◽  
Vol 66 (18) ◽  
pp. 3182-3192 ◽  
Author(s):  
Lei Zhang ◽  
Wei Gao ◽  
Qiaolin Wu ◽  
Qing Su ◽  
Jingshun Zhang ◽  
...  


2005 ◽  
Vol 3 (1-2) ◽  
pp. 69-80 ◽  
Author(s):  
Wolfram W. Seidel ◽  
F. Ekkehardt Hahn

The incorporation of benzene-l,2-dithiolato building blocks into supramolecular coordination assemblies is the main objective of the investigations described here. Special interest is directed towards dinuclear complexes with bis(benzene-l,2-dithiolato) ligands, which might be able to form helical structures. Bis(benzene-l,2-dithiolato) ligands are accessible byortho-functionalization and subsequent linkage of two benzene-l,2-dithiol units. The preparation of well defined complexes of titanium, cobalt and nickel with bis(benzene-l,2-dithiolato) ligands requires strictly thermodynamic equilibration conditions. In that case the size and shape of the ligand backbone determine if dinuclear double-stranded or mononuclear chelate complexes are obtained. The dinuclear double-stranded complexes with Ni(II) and Ni(III) are characterized by a coplanar non-helical arrangement of the square-planar bis(benzene-l,2-dithiolato)nickelate moieties. The complete structural characterization of the series[M(C6H4S2-1,2)3]n-(n = 0, 1, 2) for molybdenum and tungsten indicates an interesting coordination chemistry of dinuclear triple-stranded complexes.



2015 ◽  
Vol 34 (7) ◽  
pp. 1228-1237 ◽  
Author(s):  
Zehua Yang ◽  
Delong Liu ◽  
Yangang Liu ◽  
Masashi Sugiya ◽  
Tsuneo Imamoto ◽  
...  


2015 ◽  
Vol 2 (2) ◽  
pp. 16-22
Author(s):  
Manimekalai R ◽  
Kalpanadevi K ◽  
Anjutha Prabha N ◽  
Raina O

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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