TY - JOUR
AU - Iwase, Akio
AB - The electrolyte effect on the homogeneous chemical equilibria of Ni(bfac)2, Ni(ftac)2, and Ni(ttac)2 in dimethyl sulfoxide has been studied by means of polarographic and ultraviolet spectral measurements, where bfac−, ftac−, and ttac− represent the enolate anions of benzoyltrifluoroacetone, 2-furoyltrifluoroacetone, and 2-thenoyltrifluoroacetone respectively. The chemical equilibria of these complexes in 0.05 mol dm−3 TBAP solutions found previously:Ni(bi-L)2\ightleftharpoonsNi(bi-L)(uni-L)\ightleftharpoonsNi(bi-L)++L−\ightleftharpoonsNi(uni-L)++L−shifted more to the right in the presence of one of the electrolytes (NaClO4, KClO4, RbClO4, CsClO4, TMAP, or TEAP) at the same concentrations as TBAP; bi- and uni- mean that the ligands coordinate to the metal as bidentate and unidentate respectively. Under the conditions of [NiL2]=1 mmol dm−3 and [MClO4]=0.05 mol dm−3, the molar fractions of the species of the Ni(bi-L)2 type decreased with an increase in the inverse of the cationic radii. Such a tendency was explained mainly in terms of the interaction between the π-electron system of Ni(bi-L)2 and those cations. For the same metal perchlorates, except NaClO4, the stability of Ni(bi-L)2 decreased in the order of: bfac−>ftac−>ttac−.
TI - The Electrolyte Effect on the Chemical Equilibria of Bis(β-diketonato)nickel(II) Complexes in Dimethyl Sulfoxide
JO - Bulletin of the Chemical Society of Japan
DO - 10.1246/bcsj.59.1857
DA - 2006-06-27
UR - https://www.deepdyve.com/lp/oxford-university-press/the-electrolyte-effect-on-the-chemical-equilibria-of-bis-diketonato-GIsADQmzwf
SP - 1857
EP - 1861
VL - 59
IS - 6
DP - DeepDyve
ER -