1－己烯羰化制庚醛过程中的气相色谱法分析

 用交联ＳＥ－５４ＳＣＯＴ玻璃毛细管柱分离了１－己烯羰化制庚醛过程的原料、产品及杂质，并采用气相色谱－质谱（ＧＣ－ＭＳ）技术和纯样对照法鉴定组分。与填充柱定量结果对比表明，毛细管气相色谱法简便、准确，具有实用价值。     

二(2,4,4-三甲基戊基)膦酸萃取分离稀土元素(Ⅲ)的研究

本文研究了二(2,4,4-三甲基戊基)磷酸(Cyanex 272)的煤油溶液在不同介质(HCI,HNO_3)中对三价混合稀土的萃取分离性能.观测了平衡水相酸度对萃取平衡的影响,由酸度曲线求出相邻元素的平均分离系数,并考察了酸度对反萃取平衡的影响.比较了HCI和HNO_3介质中,Cyanex 272对混合稀土(Ⅲ)的萃取性能.     

[1-芳基甲羰基-2-(1,2,4-三唑-1-基)]乙基-N,N-二烷基二硫代氨基甲酸酯衍生物的合成、结构表征及生物活性研究

以芳香基三唑类杀菌剂三唑酮为先导物设计并合成了5个含N,N-二烷基二硫代氨基甲酸酯的芳香三唑类化合物, 通过元素分析、红外光谱、核磁共振氢谱和质谱对其结构进行了表征. 用X射线单晶衍射测定了[α-(4-甲氧基苯甲酰基)-2-(1,2,4-三唑-1-基)]乙基-N,N-二甲基二硫代氨基甲酸酯的晶体结构, 晶体属于三斜晶系, 空间群, 晶胞参数为: a＝0.73482(15) nm, b＝1.1051(2) nm, c＝1.1209(2) nm, α＝90.32(3)°, β＝101.97(3)°, γ＝105.13(3)°, V＝0.8578(3) nm³, Z＝2, D_c＝1.357 g/cm³, F(000)＝368, µ＝0.324 mm^－1. 生物测试结果显示这5种有机化合物都具有杀菌性和植物生长调节活性     

草酸根桥联Cr(Ⅲ)-Ni(Ⅱ)配合物的合成和磁性

Two new heteropolynuclear metal complexes ［Ni(phen)₂］₃［Cr(ox)₃］₂·8H₂O(1) and ［Ni(bipy)₂］₂［Cr(ox)₃］NO₃·4H₂O(2)(phen=1,10-phenanthroline, ox=oxalato, bipy=2,2-bipyridine) have been synthesized and characterized by elemental analyses, IR, TG-DTA and diffuse reflectance UV-VIS spectra. The temperature dependence of the magnetic susceptibilities of the complexes have been studied over the range 73.6～300K. The results show that ferromagnetic spin exchange interaction exist between Cr(Ⅲ) and Ni(Ⅱ) in the complex (1). The magnetic property of the complex(2) abides Curie law.     

包结物晶析法选择分离辛夷挥发油中1，8-枝叶素

We used 1,1,6,6-tetraphenylhexa-2,4-diyne-1,6-diol(A) as the host molecule to selectively recognize the component 1,8-cineole(B) in the volatile oil of Flos Magnoliae(Xin Yi). The inclusion com-pound (A B) was formed as crystalline, and the structure was confirmed by means of IR, ^1H NMR, and single crystal X-ray diffraction, with the 1:2 molar ratios of the host to the guest. The component 1,8-cineole(B) was selectively isolated from the inclusion compound(A B) by Kugelrohr vaccum technology, and then further characterized by IR, ^1H NMR and ^13C NMR. The whole components in the volatile oil of Flos Magnoliae (Xin Yi) and the isolation effect of 1,8-cineole isolated from inclusion crystals were analyzed by GC and GC-MS, respectively. The result indicate that the good isolation effect is given by the inclusion method, with purity and yield of the component 1,8-cineole(B) separated from the volatile oil of Flos Magnoliae are 100% and 85%, respectively.     

用钛系载体高效催化剂进行乙烯-丙烯-1-丁烯三元共聚合的研究 Ⅰ.聚合条件对共聚合反应的影响

用多组份改性钛系载体催化剂TiCl_4,Ti(OBu)_4/MgCl_2/Ethylbenzeate(EB)/φ_2SiCl_2/AlEt_3进行了乙烯-丙烯-1-丁烯三元共聚合的研究。考察了单体进料比、聚合温度,烷基铝浓度和催化剂浓度等条件对共聚合的影响。发现本催化剂对乙丙丁三元共聚合有极高的催化效率,聚合1h达8.6×10~4g共聚物/g-Ti。共聚合速率衰减符合动力学方程:R_s=R_s+(R_0—R_s)_e~(βs)。     

钯催化全氟及多氟碘化物与三乙胺的反应

Pullin等人曾对全氟碘代烷与三级胺的相互作用进行了研究,发现R_(?)I与NR_3能形成电荷转移络合物,即:R_(?)…I…NR_3。但此后却未见到有关反应的报道。我们发现在钯催化剂存在下,全氟碘化物与三乙胺能发生反应,反应条件较为温和,产物为氟代烷基烯基二乙基胺1。反应可能是在三乙胺中先产生一个双键,然后β碳原子接上一个全氟烷基。1的IR和NMR与Blanc报道的一致。化合物1经水解可得胺基烯酮2。在酸溶液中水解时,速度明显加快,而在碱溶液中,不仅不能加快水解速度,而且还有副反应发生。我们对化合物2进     

液膜法分离钒(Ⅳ)的研究

本文用P204-兰113A-煤油组成的滤膜体系处理钒(Ⅳ)的溶液,并考察了表面活性剂、载体、外相pH值、内相酸度、起始钒(Ⅳ)浓度以及乳水比等因素对分离的影响。