脂肪族酰胺二元醇的合成与表征

以ＤＬ－乳酸、ε己内酯及乙二胺和己二胺为原料合成了四种结构的脂肪族酰胺二元醇，并用ＩＲ，＾１ＨＮＭＲ，ＤＳＣ对酰胺二元醇的结构进行了表征。     

N，N-二丁基癸酰胺萃取硝酸有机相结构研究

利用界面张力、电导、FT-IR等研究了不同硝酸浓度下萃取有机相的微结构。利用Gaussian曲线拟合处理N，N-二丁基癸酰胺(DBDEA)的羰基吸收峰，结果表明体系中存在多种以氢键结合的物种如DBDEA·HNO₃、(DBDEA)₂·HNO₃等。在较高酸度下有机相中萃取剂分子自组装成小的聚集体-反相胶团，极性核由水、硝酸和萃取剂高电荷密度的极性部分构成。     

三硝酸根二(N，N，N′，N′-四丁基丙二酰胺)合镨(Ⅲ)配合物的晶体结构及热分解性质

双酰胺萃取剂由于具有螯合性能,能从硝酸介质中萃取三价、四价、六价锕系元素,从而引起研究者的广泛兴趣[1,2]。其降解产物对萃取过程影响很小,能够燃尽,易于处理,合成也较容易,因此在核燃料后处理及绿色萃取化学方面具有很好的发展前景。丙二酰胺类萃取剂原料易得、合成方法简单,因此其萃取锕系[3￣7]、镧系元素[8￣11]以及硝酸[12]等的性能及机理报道较多,但TBMA萃取镧系元素形成的萃合物的晶体结构未见文献报道。对此类配合物空间结构及配位构型的研究不仅有助于萃取机理的分析,同时将为新萃取剂的设计提供理论依据。另外,萃合物的红外…     

The Synthesis of Bis（carboxyalkylmethyl） Diselenides by Selenium Transfer Reaction of Aryl Selenoamides

Aryl selenoamides react smoothly with a-haloacetic acid in various alcohol to givecorresponding bis(carboxyalkylmethyl) diselenides in good yields.     

磺酰胺类常咯啉的分子力学参数的确定

应用量子化学ＭＮＤＯ程序及分子力学ＭＭＰ２程序，确定了一些未知磺酰胺类常咯啉的分子力学参数。应用这些参数计算了几个晶体结构已知的磺酰胺类化合物，与真实结构比较，计算结果令人满意。由此说明确定的分子力学参数用于计算磺酰胺类化合物时的正确性和可行性。     

聚酯酰胺的合成及表征

用两种方法合成了聚酯酰胺（ＰＥＡ）共聚物．一种是两步法，即先合成对苯二甲酸乙醇酰胺（ＢＡＥＴ）单体，然后与对苯二甲酸乙二酯（ＢＨＥＴ）共缩聚；另一种是一步法．即在酯交换反应中直接添加乙醇胺（ＥＡ）．两种方法制得的聚酯酰胺（ＰＥＡ）共聚物测试证明了为产物，并分析了合成中的化学反应．     

双臂型方酰胺多齿配体的合成(三)

Six new multidentates, chromogenic squaraine ligands, 3 ～8 are synthesized. In butanol-toluene couple medium, o-aminophenol reacts with squaric acid to give 1, 3-bissubstituted product 2 and monosubstituted product 3. It is noteworthy that reactions of N- hydroxyethyl-(2-amino-4-chloro) aniline and N-hydroxyethyl-(4-chloro-2- nitro) aniline with squaric acid do not give isosquaramide, 1, 3- substituted derivate but squaramide, 3, 4-substituted derivates 7 and 8.     

酰胺型手性固定相直接拆分克仑特罗对映体

 将酰胺型手性固定相用于正相高效液相直接拆分 β2 受体兴奋剂克仑特罗。讨论了三元流动相中正己烷、1,2 二氯乙烷和甲醇含量的变化以及柱温和流速对分离的影响 ;优化了实验条件 :流动相为V(正己烷 )∶V(二氯乙烷 )∶V(甲醇 ) =5 4∶38∶8,柱温为 17℃ ,流速为 1 0mL/min ;并对拆分的机理加以探讨。方法简单、快速。     

聚醚桥连二异羟肟酸单核和双核过渡金属配合物催化PNPP水解

Two polyether bridged dihydroxamic acids and their mono-and binuclear manganese(Ⅱ), zinc(Ⅱ) complexes have been synthesized and employed as models to mimic hydrolase in catalytic hydrolysis of p-nitrophenyl picolinate (PNPP). The reaction kinetics and the mechanism of hydrolysis of PNPP have been investigated. The kinetic mathematical model for PNPP cleaved by the complexes has been proposed. The effects of the different central metal ion, mono-and binuclear metal, the pseudo-macrocyclic polyether constructed by polyethoxy group of the complexes, and reactive temperature on the rate for catalytic hydrolysis of PNPP have been examined. The results showed that the transition metal dthydroxamates exhibited high catalytic activity to the hydrolysis of PNPP, the catalytic activity of binuclear complexes was higher than that of mononuclear ones, and the pseudo-macrocyclic polyether might synergetically activate H20 coordinated to metal ion with central metal ion together and promote the catalytic hydrolysis of PNPP.     

N，N，N′，N′-四丁基丙二酰胺从硝酸盐介质中萃取铈(Ⅲ)

Study on the extraction and separation of rare earth with new extractants is important in the rare earth chemistry and nuclear reprocessing. In this work， the extraction of Ce(Ⅲ) with N，N，N′，N′-tetrabutylmalonamide (TBMA) in toluene from nitrate media has been investigated. The effect of the concentration of nitric acid， TBMA and salt-ing-out agent (LiNO₃) and also the temperature on the distribution ratios was examined. The stoichiometries of the extracted complexes were determined to be Ce(NO₃)₃·3TBMA and Ce(NO₃)₃·4TBMA， respectively. The ap-parent extraction constants and the enthalpy of the extraction were calculated based on the extraction data， which are logK_ex1=3.97， logK_ex2=4.75 and Δ_rH_m^?=-31.25kJ·mol^-1， respectively. The IR spectra of the loaded organic phase supported the suggested extraction mechanism.