手性磷酸锌钠的低热固相合成及调控

对合成多孔功能材料手性磷酸锌钠的新方法进行了研究，以聚乙二醇-400 （PEG-400）为表面活性剂，Na₃PO₄·12H₂O和无机锌盐为原料，用低热固相反应一步法成功合成得到P6₁22空间群的手性NaZnPO₄·H₂O。实验考察了不同的锌盐、磷酸盐，以及不同pH值对产物的影响。结果表明， pH值起着重要的作用，其调控着产物的结构;锌盐的种类不影响产物的结构;磷酸盐的种类则通过pH值的调控作用对产物产生影响。当pH在11、7～9、5、3左右时，得到的产物分别为(1) P6₁22空间群的手性NaZnPO₄·H₂O与非手性的NaZnPO₄(OH)的混合物;(2)P6₁22空间群的手性的 NaZnPO₄·H₂O;(3)非手性的NaH(ZnPO₄)₂;(4)非手性的Zn₃(PO₄)₂·4H₂O。以PEG-400为表面活性剂，Na₃PO₄·12H₂O及无机锌盐为原料，在P/Zn=1.18（摩尔比），pH=7～9，反应混合物于50℃陈化6 h的条件下，合成产物为手性NaZnPO₄·H₂O。

Synthesis and regulation of chiral sodium zincophosphate via low heat solid state reaction

A novel method for the synthesis of functional material, chiral sodium zincophosphate was studied, and the target product was obtained successfully with Na₃PO₄·12H₂O and inorganic Zn salts as raw materials and PEG-400 as surfactant via a one step low heat solid state reaction.The influence of different kinds of Zn salts, P sources, and pH of the reaction mixture on the formation of the products was investigated.Experimental results indicated that the pH of the mixture was an important factor for regulation of the product structures.Different kinds of Zn salts did not affect the product structure, but different kinds of P sources affected the product structure through regulating pH.The influence of pH on the formation of the products was that when pH of the reaction mixture was about 11, 7～9, about 5, about 3, the products were correspondingly (1) mixture of chiral NaZnPO₄·H₂O (P6₁22) and achiral NaZnPO₄ (OH)［P21/c(14)］, (2) chiral NaZnPO₄·H₂O (P6₁22), (3) achiral NaH (ZnPO₄)₂, (4) achiral Zn₃ (PO₄)₂·4H₂O.The reaction conditions for the synthesis of chiral NaZnPO₄·H₂O (P6₁22) were: Na₃PO₄·12H₂O and inorganic Zn salts as raw materials, PEG-400 as surfactant, pH=7～9, P/Zn=1.18（mol） and the reaction mixture was aged at 50℃ for 6 h.