水溶性金属卟啉光敏化还原甲基紫精动力学──金属卟啉化合物光催化反应研究（Ⅰ）

用中－四（对二甲基丙磺基胺基）苯基卟啉作光敏剂，在电子给体三乙醇胺（ＴＥＯＡ）和电子受体甲基紫精（ＭＶＩ＿２）存在的情况下，研究了ＴＥＯＡ／ＭｅＴＰＳ／ＭＶ￣（２＋）／ＤＭＳＯ＋Ｈ＿２Ｏ（Ｖ／Ｖ＝８０：２０）体系的光敏化还原ＭＶ￣（２＋）动力学，并由动力学参数ａ，光诱导时间ｔ＿ｉ，初始反应速率υ＿０来衡量光敏剂的优劣。     

二茂铁双亚胺及单亚胺的合成与表征

用二乙酰基二茂铁和取代苯胺进行缩合反应，合成了一系列１，１＇－双〔１－（芳亚胺基）乙基〕二茂铁（简称二茂铁双亚胺）及１－乙酰基－１＇－〔－（芳亚胺基）乙基〕二茂铁（简称二茂铁单亚胺）。对它们的反应性能进行了研究。对所得新化合物进行了元素分析，并用红外光谱，核磁共振氢谱进行了表征。     

N,N''-双(4-羟基-3-甲氧基苯甲基)草酰胺的合成及晶体结构研究

设计合成一种新型对称的草酰胺桥联配体：N,N＇-二（4-羟基-3-甲氧基苯甲基）草酰胺配体（H4LB）．通过红外光谱、元素分析、核磁、熔点测定及晶体结构解析对其进行了表征．晶体结构研究表明配体心H4L为顺式桥联分子,晶体中存在两种氢键,一种是草酰胺基团的O原子与苯环上的酚羟基形成O-H…O氢键[d（O-H…O）=2．906（2）A,∠0-H…O=151．8°];另一种是草酰胺基团的氨基与相邻草酰胺基上的O原子形成N—H…O氢键[d（N—H…O）=2．849（2）A,∠N—H…O=158．7°],通过上述两种氢键将化合物H4LB连接成二维网络结构．     

含酰胺基团氯化稀土配合物的合成和表征

合成了未见文献报道的氯化稀土丙烯胺配合物（ＬｎＣｌ３·３ＰＡ），剖析了ＬｎＣｌ３·３ＰＡ和聚（苯乙烯－丙烯酰胺）负勒氯化稀土配合物（ＳＡＡ·ＬｎＣｌ３）的红外光谱和电子能谱。结果表明，含酰胺基团的配体均通过与羰基氧与稀土离子配位。     

聚乙二醇促进苯乙烯-丙烯腈无规共聚物碱解行为研究

本文研究了苯乙烯-丙烯腈无规共聚物（SAN）在二氧六环（DOA）中的碱解行为.结果表明聚乙二醇（PEG）能促进SAN的碱解，尤其是促进腈基转化为酰胺基；随反应时间的增加，酰胺基进一步转化为羧基；PEG分子链长对于SAN碱解的促进作用具有重要影响.     

高电荷态离子N~(q+)(q=3,6)与原子、分子碰撞中发射光谱

本实验对N6+—He，N3+—He和N3+—H2碰撞中的发射光谱进行了测量.从测量到的发射光谱分析证明：上述碰撞中存在着三种或四种激发通道：（1）单电子俘获激发通道：（2）双电子俘获激发通道：（3）入射离子直接激发通道；（4）靶直接激发通道。本文还给出了发射截面数据。     

meso－［邻－（2－乙酰胺基）苯甲酰胺基苯基］三苯基卟啉的合成与表征

报道一个新的尾式叶琳－ｍｅｓｏ－（邻－（２－乙酰胺基）苯甲酰胺基苯基］三苯基卟啉的合成方法，并由元素分析、ＩＲ、ＵＶ进行结构表征。     

溶剂型喷墨墨水连接料的合成及性能研究

采用自由基共聚合，再经Hofmann反应合成了新型的带胺基的可用于油溶性喷墨体系的聚丙烯酸酯的连接料。用红外光谱确定了酰胺基到胺基的转化。测定了采用特种官能团（酰胺基和胺基）的连接料的结构、含量与墨水体系稳定性、沉降率的关系。带胺基的聚丙烯酸酯的连接料配制成的墨水，体系稳定性好，置于扫描电镜下观察，颜料具有较好的颗粒粒径和分布。     

超分子化合物[Ni（INAIP）（Him）（H_2O）]·H_2O的水热合成和晶体结构（英文）

由水热法合成了镍化合物[Ni（INAIP）（Him）（H2O）].H2O,（1）（INAIP=5-异烟酰胺基异酞酸根）,并对其进行了元素分析、IR及X-射线衍射法表征。晶体结构表明：配合物属于单斜晶系,P21/c空间群。配合物是由桥联配体5-异烟酰胺基异酞酸连接成二维（6,3）拓扑结构,该二维层被氢键拓展成三维超分子结构。     

强磁场下中子星外壳层的Gamow-Teller跃迁电子俘获

以核素^55Co和^54Mn为例．讨论了强磁场下的中子星外壳层Gamow—Teller跃迁（G-T）电子俘获率．结果表明，对于大部分中子星，表面磁场（10^4～10^9T）对Cr-T跃迁电子俘获率的影响很小，对于超磁中子星．表面磁场（10^9～10^13T）使GT跃迁电子俘获率降低大约2—3个数量级．     

1-苯甲酰基-3-取代苯基硫脲作为有机倍频材料的研究

对 8个 1-苯甲酰基 - 3-取代苯基硫脲化合物从理论上进行了微观非线性光学性能研究 ,在此基础上合成并测定了该类化合物的有关倍频性能 ,认为此类化合物是一类很有应用潜力的非线性光学材料     

晶体中化学键的研究：Ⅳ.具有四方CaC2结构的二元化合物

用原子轨道(AO)与键轨道(BO)线性组合方法计算了四方CaC_2型化合物的能带,这些化合物有KO_2、CaO_2、MgC_2、Y_C2、LaC_2、UC_2等。推出了它们的导电规律与键级。所有这些结论已被已有的实验数据所证实。     

邻炔基苯基环丁酮类化合物的高效合成及其开环-环化反应

以常见易得且稳定的催化剂及膦配体为催化体系, 进一步系统优化钯催化的无铜Sonogashira偶联制备β-(2-乙炔基苯基)环丁酮类化合物的反应体系, 高产率得到一系列含有不同官能团的β-(2-乙炔基苯基)环丁酮类化合物, 并进一步实现铜催化下该类化合物的开环-复分解反应.     

A larger pool of ozone-forming carbon compounds in urban atmospheres

Volatile organic compounds play a central role in the processes that generate both urban photochemical smog and tropospheric ozone. For successful and accurate prediction of these pollution episodes, identification of the dominant reactive species within the volatile organic carbon pool is needed. At present, lack of resolution inherent in single-column chromatographic analysis limits such a detailed chemical characterization of the complex urban atmosphere. Here we present an improved method of peak deconvolution from double-column (orthogonal) gas chromatography. This has enabled us to isolate and classify more than 500 chemical species of volatile organic compounds in urban air, including over 100 multi-substituted monoaromatic and volatile oxygenated hydrocarbons. We suggest that previous assessments of reactive carbon species may therefore have underestimated the contribution made by volatile organic compounds to urban pollution, particularly for compounds with more than six carbon atoms. Incorporating these species in predictive models should greatly improve our understanding of photochemical ozone yields and the formation of harmful secondary organic aerosols.     

Phenol and HCl at 550 degrees C yield a large variety of chlorinated toxic compounds

During the past decade it has been shown conclusively that the incineration of municipal and industrial wastes gives rise to emissions of chlorinated dibenzodioxins and dibenzofurans. However, the mechanism by which these toxic compounds are formed has not yet been fully established. Some researchers believe that the presence of organically bound chlorine is necessary, but others consider that inorganic forms of chlorine may also participate in the process. We now report the synthesis of a large number of chlorinated environmental pollutants in a simple high-temperature experiment. The results show that phenol and HCl are the most likely precursors of the chlorinated dibenzodioxins and dibenzofurans formed in the combustion of wastes. The dependence of the reaction on the concentration of HCl indicates a way of controlling the formation of these toxic compounds during incineration.     

Novel dihydropyridines with positive inotropic action through activation of Ca2+ channels

Transmembrane influx of extracellular calcium through specific calcium channels is now accepted to have an important role in the excitation-contraction coupling of cardiac and smooth muscle. The importance of such slow calcium channels has been underlined by the development of specific calcium channel blocking agents, the 'calcium antagonists', typified by verapamil, nifedipine and diltiazem. These drugs have been used to investigate the properties of slow calcium channels in a variety of tissues. We have found that small modifications to the nifedipine molecule produce other dihydropyridine derivatives (see Fig. 1) with effects diametrically opposite to those of the calcium antagonists: cardiac contractility is stimulated and smooth muscle is contracted. These effects are competitively antagonized by nifedipine. Apparently, nifedipine and the novel compounds bind to the same specific dihydropyridine binding sites in or near the calcium channel. In contrast to nifedipine, however, the new compounds promote--instead of inhibiting--the influx of Ca2+ ions. We report here the properties of BAY K 8644 (methyl 1,4-dihydro-2,6-dimethyl-3-nitro-4-(2-trifluoromethylphenyl)- pyridine-5-carboxylate), one of the most potent of these novel compounds.     

Encoding social signals in the mouse main olfactory bulb

Mammalian urine releases complex mixtures of volatile compounds that are used in reproduction, territoriality and conspecific recognition. To understand how such complex mixtures are represented in the main olfactory bulb, we analysed the electrophysiological responses of individual mitral cells to volatile compounds in mouse urine. In both males and females, urine volatile compounds evoke robust responses in a small subset of mitral cells. Fractionation of the volatile compounds using gas chromatography showed that out of the hundreds of compounds present, mitral cells are activated by single compounds. One cohort of mitral cells responded exclusively to male urine; these neurons were activated by (methylthio)methanethiol, a potent, previously unknown semiochemical present only in male urine. When added to urine, synthetic (methylthio)methanethiol significantly enhances urine attractiveness to female mice. We conclude that mitral cells represent natural odorant stimuli by acting as selective feature detectors, and that their activation is largely independent of the presence of other components in the olfactory stimulus.     

Compositional maps of Saturn's moon Phoebe from imaging spectroscopy

The origin of Phoebe, which is the outermost large satellite of Saturn, is of particular interest because its inclined, retrograde orbit suggests that it was gravitationally captured by Saturn, having accreted outside the region of the solar nebula in which Saturn formed. By contrast, Saturn's regular satellites (with prograde, low-inclination, circular orbits) probably accreted within the sub-nebula in which Saturn itself formed. Here we report imaging spectroscopy of Phoebe resulting from the Cassini-Huygens spacecraft encounter on 11 June 2004. We mapped ferrous-iron-bearing minerals, bound water, trapped CO2, probable phyllosilicates, organics, nitriles and cyanide compounds. Detection of these compounds on Phoebe makes it one of the most compositionally diverse objects yet observed in our Solar System. It is likely that Phoebe's surface contains primitive materials from the outer Solar System, indicating a surface of cometary origin.     

对溴苯甲酸稀土配合物的合成及性质

合成了对溴苯甲酸钐、铕、铽及镝四种稀土配合物.研究表明,这些配合物的组成为REL_3,稀土离子的配位效为6,所形成的配合物为鳌合物.在这四种配合物中,只有铕和铽的配合物发光性能较好.     

SO_2与二烯烃的光化学反应

用ＧＣ和ＧＣ／ＭＳ法研究了ＳＯ＿２，与１，３－丁二烯和１，３－戊二烯在无氧以及有氧体系中的光化学反应。确定了主要反应物，研究了体系的动力学，探讨了部分产物的生成机制。