918794-29-3Relevant academic research and scientific papers
Nickel scorpionate complexes containing poly(aryl ether) dendritic substituents
Sánchez-Méndez, Alberto,Flores, Juan C.,Gómez-Sal, Pilar
, p. 201 - 208 (2016/07/25)
Novel dinitratonickel(II) complexes with bis(pyrazolyl)methane ligands at the focal point of poly(aryl ether) Fréchet dendrons of up to the third generation are reported. The complexes are accessible by direct reaction of the corresponding scorpionate ligand with Ni(NO3)2, or by treatment of the dibromidonickel derivatives with AgNO3, although they reversibly convert to the dibromidos in the presence of KBr. The paramagnetic compounds could be characterized by1H NMR in solution. The molecular structure of metallodendrimers G0 and G1 [Ni(NO3)2{(Gn-dend)CH(3,5-Me2pz)2}] have been determined by X-ray diffraction methods. Both structures show an almost identical three-dimensional organization of the –ArCH2CH(3,5-Me2pz)2Ni(NO3)2moieties, with the nickel atoms exhibiting a distorted octahedral structure with a scorpionate-κ2and two bidentate nitrato ligands.
Synthesis and 1H NMR studies of paramagnetic nickel(ii) complexes containing bis(pyrazolyl)methane ligands with dendritic substituents
Sanchez-Mendez, Alberto,Benito, Jose Maria,De Jesus, Ernesto,De La Mata, F. Javier,Flores, Juan C.,Gomez, Rafael,Gomez-Sal, Pilar
, p. 5379 - 5389 (2007/10/03)
The substituted bis(pyrazolyl)methane ligands RCH(3,5-Me 2pz)2 (R = SiMe3 (1), CH2Ph (2), G1 (3), G2 (4), and G3 (5); Gn = Frechet-type dendritic wedges of generation n) have been prepared starting from H2
