1-羟基乙叉-1,1-二膦酸铜(Ⅱ)固体配合物的研究

Synthesis,Properties and Coordination Effect of Solid Complexes of Copper (Ⅱ)and 1-Hydroxyethy-Lidene -1,1-Diphosphonic Acid

本文合成了六种１－羟基乙叉－１１二膦酸ＣＨ３Ｃ（ＯＨ）（ＰＯ３Ｈ２）２（简称ＨＥＤＰ）与Ｃｕ（Ⅱ）的固体配合物。用元素分析和热重分析确定了这些配合物的组成Ｃｕ（Ｈ３Ｌ）２．１２Ｈ２Ｏ、Ｎａ４Ｃｕ（ＨＬ）２８Ｈ２ＯＣｕＨ２Ｌ．２Ｈ２Ｏ、ＮａＣｕＨＬ．６Ｈ２Ｏ、Ｎａ２ＣｕＬ．５Ｈ２Ｏ、Ｃｕ２Ｌ．３Ｈ２Ｏ（其中Ｌ＝ＣＨ３Ｃ（ＯＨ）（ＰＯ３）２）。用红外光谱和热分析对合成产物的结构及热稳定性作了系统的研究。通过电位滴定法讨论了Ｃｕ（Ⅱ）与ＨＥＤＰ之间的配位作用。

In this work six solid complexes of copper(Ⅱ)and 1-hydroxyethy-lidene-1,1-diphosphonic acid CH 3C(OH)(PO 3H 2) 2(HEDP) has been synthesized.The composition of these compounds has been determined by their elemental analysis and thermal analysis: Cu(H 3L) 2.12H 2O、Na 4Cu(HL) 2 8H 2O.CuH 2L.2H 2O、NaCuHL.6H 2O、Na 2CuL.5H 2O、Cu 2L.3H 2O(L=CH 3C(OH)(PO 3) 2)。The character of structure and thermal stability for these complexes over systematically studied by use of 1R spectra and thermal analysis methods .In this paper ,we rescarched the coordination action of copper(Ⅱ)ion with HEDP by potentiometric titrotion also.