碳笼烯的高分子化──苯乙烯－烯丙基胺共聚物与C_（60）的反应

碳笼烯的高分子化──苯乙烯－烯丙基胺共聚物与Ｃ＿（６０）的反应田慧洁，周锡煌，李福绵（北京大学化学系北京１００８７１）关键词碳笼烯的高分子化，Ｃ＿（６０），苯乙烯－烯两基胺共聚物碳笼烯（ｆｕｌｌｅｒｅｎｅ）是因其具有特殊的功能性质ｍ而颇受青睐的球簇分...     

PVK／C60电荷转移络合物的光谱研究

利用紫外光谱、荧光光谱研究了ＰＶＫ／Ｃ_（６０）~＊（Ｃ_（６０）~＊与Ｃ_（７０）混合物）体系的光谱行为，实验结果表明，ＰＶＫ与Ｃ_（６０）之间存在电荷转移络合作用。紫外光谱结果表明ＰＶＫ／Ｃ_（６０）~＊电荷转移络合物的特征吸收峰在４７４ｎｍ附近，这与理论计算结果相吻合．ＰＶＫ单元与Ｃ_（６０）之间的最佳匹配约为５：１．荧光光谱结果进一步证明了ＰＶＫ与Ｃ_（６０）~＊之间的电荷转移络合作用的存在。     

两种C_（60）－甘氨酸酯衍生物的室温荧光光谱

两种Ｃ_（６０）－甘氨酸酯衍生物的室温荧光光谱周德建，甘良兵，谭海松，骆初平，姚光庆，黄春辉（北京大学稀土材料化学及应用国家重点实验室，北京，１００８７１）关键词Ｃ_（６０）－甘氨酸酯衍生物，浓度猝灭，荧光寿命Ｃ６０在低温或室温及在紫外或可见光的激发下...     

C60与聚苯乙烯活性种的反应

Ｃ_（６０）与聚苯乙烯活性种的反应汪长春，潘宝荣，府寿宽（复旦大学高分子科学系，上海，２００４３３）关键词高分子Ｃ_（６０）衍生物，聚苯乙烯阴离子活性种，Ｃ_（６０）自从Ｃ６０被常规量制备出以后［１］许多Ｃ６０的衍生物也已合成出来。研究发现，Ｃ６０及其?..     

C_（60）－PNVC光电导功能材料的形态与结构研究

用高分辨~（１３）Ｃ核磁共振技术与扫描电镜法研究了Ｃ_（６０）修饰的聚乙烯咔唑（ＰＮＶＣ）光电导功能材料。结果表明，Ｃ_（６０）与ＰＮＶＣ共混时彼此间存在快速动态电荷转移行为；Ｃ_（６０）含量对化学修饰的ＰＮＶＣ结构影响显著。最后比较了Ｃ_（６０），ＰＮＶＣ及用金属有机化学法制备Ｃ_（６０）－ＰＮＶＣ共聚物的亚微观形态结构差异。     

C60,C70与过氧苯甲酰反应的动力学研究

Ｃ_（６０）、Ｃ_（７０）与过氧苯甲酰反应的动力学研究胡波，薛万华，张法义，尚振锋，马克勤，臧雅茹，赵学庄（南开大学化学系，天津，３０００７１）关键词Ｃ_（６０），Ｃ_（７０），动力学Ｋｒａｔｓｃｈｍｅｒ等人［１］的发现使制备宏观量的Ｃ（６０）和Ｃ（７０...     

笼形聚偕胺肟树脂的研究贵金属在RCO2H／ACAO树脂上的交换吸附

用羧酸处理的笼形聚偕胺肟树脂（ＲＣＯ２Ｈ／ＡＣＡＯ）吸附Ｐｄ（Ⅱ）、Ｉｒ（Ⅳ）、Ｐｔ（Ⅳ）、Ａｇ（Ⅰ）、Ａｕ（Ⅲ）离子的能力与羧酸性质有关，巯其乙酸／ＡＣＡＯ树脂对Ｐｄ（Ⅱ）、Ｉｒ（Ⅳ）和Ａｕ（Ⅲ）吸附容量较高，乙二酸／ＡＣＡＯ树脂则对Ａｇ（Ⅰ）和Ｐｔ（Ⅳ）离子有稍强的吸附能力。除Ｐｄ（Ⅱ）外，ＲＣＯ２Ｈ／ＡＣＡＯ树脂吸附贵金属离子的能力低于笼形聚偕胺肟树脂（ＣＡＯ）和碱处理笼形聚偕胺肟树脂（ＢＣ     

C60硫衍生物—C60S^＋的气相合成

Ｃ_（６０）硫衍生物──Ｃ_（６０）Ｓ~＋的气相合成刘子阳，郝国仑，郭兴华，刘淑莹（中国科学院长春应用化学研究所，长春，１３００２２）关键词Ｃ_（６０），ＣＳ_２，离子－分子反应自实现Ｃ（６０）的宏观量合成以来［１］，通过将Ｃ（６０）进行化学衍生进而改变?..     

聚-γ-N-(β-丁硫基乙基)胺丙基硅氧烷钯络合物的合成及其催化性能的研究

报导了聚－γ－Ｎ－（β－丁硫基乙基）胺丙基硅氧烷和氯化钯的反应，得到固载在二氧化硅上的聚－γ－Ｎ－（β－丁硫基乙基）胺丙基硅氧烷钯络合物，并用ＸＰＳ研究其结构．选用硝基苯、烯丙基环氧丙基醚、烯丙基苯基醚、丙烯腈、烯丙基苯、苯乙烯、环己烯及丁烯等８种底物进行催化加氢，以评价其催化活性．结果表明，该催化剂催化效果良好，并且有很好的稳定性．     

球笼烯（C_（60）／C_（70）载体钕系催化丁二烯聚合的研究

球笼烯（Ｃ_（６０）／Ｃ_（７０）载体钕系催化丁二烯聚合的研究赵春英，陈滇宝，仲崇祺，董文寰，徐玲，唐学明（青岛化工学院高分子材料系青岛２６６０４２）杨海滨，李明辉，邹广田（吉林大学超硬材料国家重点实验室长春１３００２３）关键词球碳载体钕系催化剂，聚丁...     

Strong Room-Temperature Photoluminescence from the Novel Adduct of C_(60) with Aliphatic Amines

Fullerene C,, is a good electron-accepting molecule. It has been shown that it can formthe charge~transfer complexes (CTC) with ammes as the electron-donorly. Based on theweak CT interactions of C,, with various ammes, the fiuorescence emission spectra forboth of C,. and its CTC (including the derivatives of C,,) frequently appear at relativelylonger wavelengths more than 700 urn2-4. Whereas the fluorescence emission at relativieshorter wavelengths are often neglected and have not been re…     

Loss of characteristic absorption bands of C60 conjugation systems in the addition with aliphatic amines

The characteristic absorption bands disappear and the shortest band at approximately 244 nm in cyclohexane or 282 nm in toluene remained only with long smoothing tail as C60 reacts adequately with aliphatic amines under sunlight radiation at approximately 40 degrees C. Simultaneously, fluorescence emission shifts from a weak band initially at longer wavelength to another strong one finally at shorter wavelength. The results might imply that the pi-conjugation system of C60 parent molecule is isolated into smaller separated parts. Therefore, some possible isolation models associated with observed experimental results are designed under some reasonable assumptive conditions.     

含C_(60)聚乙基乙烯基醚的合成及其荧光行为

Ｃ６０的高分子化一直被认为是Ｃ６０材料化的一个重要途径［１～５］,但含Ｃ６０的高分子的制备及其性能表征却遇到很多困难．迄今为止,制备含Ｃ６０的高分子的方法多采用自由基引发剂或阴离子引发剂引发Ｃ６０与烯类单体共聚［２,３,６］,这使共聚单体的范围受到限...     

Lyoluminescence of luminol in aqueous amines

Lyoluminescence of luminol induced by -irradiated NaCl has been studied in aqueous amines. The emission spectra of lyoluminescence are recorded on 400 ASA Kodak film using a Fuess spectrograph. A broad continuous emission band appears in the visible region from 390 to 500 nm. The emission band showed two peaks centered at 430 and 470 nm. The 430 nm peak is more intense in secondary amines while the 470 nm band is more intense in primary amines. The mechanism of light emission is based on the comparative study of lyoluminescence, fluorescence and chemiluminescence of luminol in aqueous amines.     

C60掺杂聚苯乙烯薄膜的荧光发射

采用铸模的方法制得Ｃ６０掺杂的聚苯乙烯薄膜。Ｘ－射线衍射实验表明Ｃ６０已均匀分布在聚苯乙烯薄膜中，在氢离子激光器的激发下，发现该薄膜在５８３ｎｍ处有荧光发射，与空白样品的实验结果进行比较，发现该荧光发射为一新的荧光峰。详细的分析表明其是由于Ｃ６０与聚合物基质间的相互作用，使得跃迁禁阻能极化为跃迁允许能级而造成的。     

C_（60）的胺加成反应和电喷雾电离质谱（ESI－MS）检测

报道了Ｃ６０与１，３－丙二胺和Ｎ，Ｎ－二甲基－１，３－丙二胺的加合反应，反应产物未经预先离子化处理直接用ＥＳＬ－ＭＳ进行检测。由于反应产物从甲苯溶液中析出，避免了生成多胺基加合物，产物以单加成物为主。当加合反应在空气氛下进行时，有加合氧的产物Ｃ６０Ｏｎ（ＮＨ２—ＣＨ２ＣＨ２ＣＨ２ＮＲ２）ｍ（Ｒ＝Ｈ，ＣＨ３）存在。实验发现：Ｎ，Ｎ－二甲基－１，３－丙二胺比１，３－丙二胺更容易与Ｃ６０发生多胺基加成和氧加成反应。通过控制反应条件可制备Ｃ６０二胺的单加成产物。     

Preparation of cationic polyacrylamides by a modified Hofmann reaction: Fluorescent labeling of cationic polyacrylamides

Cationic polyacrylamides (C-PAM) which contain both primary and quaternary amines were prepared according to the Hofmann reaction by adding choline chloride to a solution of polyacrylamide in water. The reaction was 90% complete after 60 min at 20°C. The degree of amination was over 70% and the proportion of primary and quaternary amines could be altered widely by controlling the relative concentrations of NaOH, NaOCl, and choline chloride. C-PAM was dansylated (fluorescently labeled) in a homogeneous system using aqueous dimethylformamide as solvent. The optimum excitation wavelength for dansylated C-PAM in water at room temperature (22 ± 1°C) was 333 nm and the corresponding emission wavelength 538 nm. The fluorescence intensity was almost constant at pH levels above 5, but decreased rapidly below pH 4 and was almost zero at pH 2.     

Carbene adduct of cyclopalladated ferrocenylimine‐assisted synthesis of aminopyridine derivatives by the amination of chloropyridines with primary and secondary amines

An efficient, simple way to synthesize aminopyridine derivatives is presented, based on Buchwald–Hartwig aminations. Using 1 mol% N‐heterocyclic carbene adduct of cyclopalladated ferrocenylimine in the presence of 1.5 equiv. ^tBuOK as base in dioxane at 110°C offered moderate to excellent yields in the reaction of chloropyridines with primary and secondary amines, including sterically hindered amines and alkyl amines.     

Determination of primary and secondary aliphatic amines with high performance liquid chromatography based on the derivatization using 1,3,5,7-tetramethyl-8-(N-hydroxysuccinimidyl butyric ester)-difluoroboradiaza-s-indacene

In this article, the simultaneous determination of primary and secondary aliphatic amines including dimethylamine (DMA), diethylamine and eleven primary aliphatic amines by high performance liquid chromatography (HPLC) with fluorescence detection has been achieved using a BODIPY-based fluorescent derivatization reagent, 1,3,5,7-tetramethyl-8-(N-hydroxysuccinimidyl butyric ester)-difluoroboradiaza-s-indacene (TMBB-Su). The derivatization reaction of TMBB-Su with aliphatic amines was optimized with orthogonal design experiment and the derivatization reaction proceeded at 15 °C for 25 min. The baseline separation of these derivatives was carried out on a C₈ column with methanol-tetrahydrofuran-50 mM pH 6.50 HAc-NaAc buffer (55/5/40, v/v/v) as a mobile phase. Detected at the excitation and emission of 490 and 510 nm, respectively, the detection limits were obtained in the range of 0.01-0.04 nM (signal-to-noise ratio = 3). The proposed method has been applied to the determination of trace aliphatic amines in viscera samples from mice without complex pretreatment or enrichment method. The recoveries ranged from 95.1% to 106.8%, depending on the samples investigated.     

8-Phenyl-(4-oxy-acetic acid N-hydroxysuccinimidyl ester)-4,4-difluoro-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacene as a new highly fluorescent-derivatizing reagent for aliphatic amines in disease-related samples with high-performance liquid chromatography

A novel fluorescent-activated ester, 8-phenyl-(4-oxy-acetic acid N-hydroxysuccinimidyl ester)-4,4-difluoro-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacene (TMPAB-OSu) has been designed and synthesized for amine labeling in HPLC. Being used 11 aliphatic amines as the models, the derivatization conditions were optimized. In 0.2 mol/l borate buffer (pH 8.8), amines reacted with TMPAB-OSu at 30 °C to form the derivatives in 10 min. The fluorescent quantum yield of TMPAB-OSu and its amine derivatives are high even compared with fluorescein. The separation of these amine derivatives was achieved with a C₈ column and gradient elution by using 0.1 mol/l sodium acetate buffer (pH 5.0) and methanol. With fluorescence detection at an emission wavelength of 509 nm and an excitation wavelength of 497 nm, the detection limits of aliphatic amines were 2–18 fmol, at a signal-to-noise ratio of 3:1. The proposed TMPAB-OSu-based HPLC method has been applied to the analysis of urine samples of health, hepatic and renal patients and lake water. Recoveries from different matrices are from 96 to 104%, depending on the sample investigated.