摘要
研究了苯膦酸锆Ｚｒ（Ｃ６Ｈ５ＰＯ３）２·ｎＨ２Ｏ及其混合配体形式的衍生物磷酸苯膦酸锆Ｚｒ（Ｃ６Ｈ５ＰＯ３）２－ｘ（ＨＰＯ４）ｘ·ｎＨ２Ｏ的不同制备方法，其中ｎ，ｘ的值随实验条件的不同而不同。实验证明，这类化合物具有典型的层状结构，而且其层间距离在不同条件下可以有不同的结果。由ＸＲａｙ粉末衍射法及元素分析的结果可知，ＨＦ酸络合法制得的Ｚｒ（Ｃ６Ｈ５ＰＯ３）２·５Ｈ２Ｏ的层间距为１５１ｎｍ；ＨＦ酸络合法和交换法制得的Ｚｒ（Ｃ６Ｈ５ＰＯ３）２－ｘ（ＨＰＯ４）ｘ·ｎＨ２Ｏ的层间距分别为１４９ｎｍ和１５８ｎｍ；当磷酸大大过量时，将形成间层型结构，层间距为２４１ｎｍ。这类化合物的结晶水含量影响层间距，但不影响层状结构及结晶度。
Zirconium phenyl phosphonate Zr(C 6H 5PO 3) 2· n H 2O and its derivatives Zr(C 6H 5PO 3) 2- x (HPO 4) x · n H 2O have been synthesized by different methods. The values of n and x vary according to the experimental conditions.Depending on reaction conditions, they are all typical layered cryetal, with inter layer spacings (d ) of 1 51nm for Zr(C 6H 5PO 3) 2 and 2 41nm for Zr(C 6H 5PO 3) 2- x (HPO 4) x · n H 2O, determined by X ray powder diffraction and elemental analysis. A material with the storchiometry ZrPO 4(H 2PO 4) 0 71 (C 6H 5PO 3) 0 29 ·0 66H 2O has been prepared by a topotatic exchange reaction of γ ZrP with phenylphosphonic acid. The water amount between the layers has an effect on the interlayer spacing, but has no effect on the layered structure and crystallinity.
出处
《北京化工大学学报（自然科学版）》
EI
CAS
CSCD
1998年第3期59-63,共5页
Journal of Beijing University of Chemical Technology(Natural Science Edition)
