【摘要】 新化合物N 二苯基氧化膦亚甲基 (S) 焦谷氨酸(PO PGA)由Ph2PH,HCHO和(S) 谷氨酸在甲醇中通过Mannich反应,然后经H2O2氧化而制得。化合物PO PGA的晶体结构经X射线单晶衍射而确定。晶体为正交晶系,空间群为P212121,晶胞参数a=9.319(2),b=15.512(3),c=2.6456(6)nm,Z=4,Dc=1.273g·cm-3。该标题化合物通过分子间氢键连接形成环二聚体(PO PGA)2(CH3COCH3),空腔大小为0.5656nmⅹ0.3405nm。经元素分析、IR、H1 NMR、P31 NMR和质谱对PO PGA及其和硝酸铈形成的配合物的(PO PGA)2Ce(NO3)3·(H2O)3性质进行了研究。更多还原

【Abstract】 New compound of N［(diphenylphosphine oxide)methylene］(S)pyroglutamic acid (POPGA) was prepared by the reaction of Ph2PH, HCHO and (S)glutamic acid in methanol, and then oxidized by H2O2 in acetone. Single crystal Xray structural analysis of the compound indicates that POPGA crystallizes in space group P212121 with a=9.319(2), b=15.512(3), c=2.6456(6) nm, Z=4, Dc=1.273 g·cm-3. The compound exists in a hydrogenbonded cyclic dimer (POPGA)2(CH3COCH3) with a cavity of 0.5656×0.3405 nm2. And the complex (POPGA)2Ce(NO3)3·(H2O)3 formed between POPGA(2equiv) and cerium nitrate (1equiv) was characterized by IR and element analysis.更多还原