INTERACTION OF DIVALENT METAL-IONS WITH D-ALDONIC ACIDS IN THE SOLID-PHASE - II - STRUCTURAL INFORMATION

Complexes formed between D-glucoheptonate, D-galactonate, D-gulonate a nd D-ribonate, and several metal ions were obtained in the solid state . Specifically: D-glucoheptonates, Be(C7H13O8). 1/2H(2)O, Mn(C7H13O8)( 2). 2H(2)O, Co(C7H13O8)(2). 2H(2)O, Ni(C7H13O8)(2). 2H(2)O, Cu(C7H13O8 )(2). 2H(2)O, Pb(C7H13O8)(2); D-galactonates, Mn(C6H11O7)(2). 2H(2)O, Co(C6H11O7)(2). 3H(2)O, Ni(C6H11O7)(2).3H(2)O, Cu(C6H11O7)(2), Pb(C6H1 1O7)(2); D-gulonates, Co(C6H11O7)(2).H2O, Ni(C6H11O7)(2).2H(2)O, Cu(C6 H11O7)(2).2H(2)O; D-ribonates, Mn(C5H9O6)(2), Co(C5H9O6)(2). 2H(2)O, N i(C5H9O6)(2). 2H(2)O, Cu(C6H11O7)(2). 2H(2)O and Pb(C5H9O6)(2) have be en isolated. These metal sugar salts were characterized by elemental a nalysis, thermogravimetric analysis, magnetic susceptibility measureme nts, FT-IR, diffuse reflectance and EPR spectroscopies. (C) 1998 Elsev ier Science Ltd. All rights reserved.