Mechanochemical syntheses of complexes through solid-solid reactions of divalent transition metal salts (Ni(II) or Cu(II)) with dimethylglyoxime

Hihara G; Satoh M; Uchida T; Ohtsuki F; Miyamae H

Solid State Ionics, Vol.172, No.1-4, 221-223, 2004

DOI10.1016/j.ssi.2004.05.012 Export Citation

Mechanochemical syntheses of complexes through solid-solid reactions of divalent transition metal salts (Ni(II) or Cu(II)) with dimethylglyoxime

Hihara G, Satoh M, Uchida T, Ohtsuki F, Miyamae H

Solvent-free solid-solid reactions of dimethylglyoxime (H(2)dmg) with nickel(II) salts or copper(II) acetate were conducted mechanochemically. Three types of complexes, [Ni(Hdmg)(2)], [Ni(H(2)dmg)(2)]X-2(X = Cl and NO3) and CuCH3COO(Hdmg), were identified by powder X-ray diffractometry (XRD) and elemental analysis. [Ni(HdMg)(2)] was obtained for nickel salts of a weak acid and [Ni(H(2)dmg)(2)]X-2 for those of a strong acid. The progress of some of the solid-solid reactions was followed by the measurement of weight change of the reaction mixture, suggesting that mechanical energy was utilized as a driving force for the reactions. (C) 2004 Elsevier B.V All rights reserved.

Keywords:solvent-free synthesis;mechanochemical reaction;dimethylglyoxime;solid-solid reaction;bis(dimethylglyoximato)nickel(II)