Carbohydrate Complexes with Lead(II) Ion. Interaction of Pb(II) with β-D-Glucurono-6,3-lactone, D-Glucono-1,5-lactone, and Their Acid Anions and the Effects of Metal Ion Binding on the Sugar Hydrolysis
作者:Heidar-Ali Tajmir-Riahi
DOI:10.1246/bcsj.62.1281
日期:1989.4.15
The interaction of Pb(II) ion with β-D-glucurono-6,3-lactone, D-glucuronic acid, D-glucono-1,5-lactone, and their acid anions has been investigated in aqueous solution and solid compounds of the type Pb(D-glucurono-6,3-lactone)(NO3)2, Pb(D-glucuronic acid)(NO3)2, Pb(II)–D-glucuronate, Pb(D-glucono-1,5-lactone)(NO3)2, and Pb(II)–D-gluconate have been isolated. These compounds are characterized by means
研究了 Pb(II) 离子与 β-D-glucurono-6,3-lactone、D-glucuronic acid、D-glucono-1,5-lactone 及其酸阴离子在水溶液和固体化合物中的相互作用。 Pb(D-glucono-6,3-lactone)(NO3)2, Pb(D-glucuronic acid)(NO3)2, Pb(II)–D-glucuronate, Pb(D-glucono-1,5-内酯)(NO3)2 和 Pb(II)-D-葡萄糖酸盐已被分离出来。这些化合物通过 FT-IR、1H 和 13C NMR 光谱和摩尔电导率测量进行表征。在这些 Pb-糖复合物中,Pb(II)-D-葡萄糖酸盐的晶体结构是通过 X 射线衍射测量已知的,其中铅 (II) 离子是六配位的,通过以下方式与四个 D-葡萄糖酸盐阴离子结合两个阴离子的羧基氧和 α-羟基(螯合)以及其他两个糖阴离子的羧基氧原子(未识别)。