Cu－Fe－Ce－O／γ－Al_2O_3催化CO＋NO反应的TP－FT－IR研究

运用ＴＰ－ＦＴ－ＩＲ技术研究了ＣＯ、ＮＯ、ＮＯ＋ＣＯ在负载型Ｃｕ－Ｆｅ－Ｃｅ－Ｏ（Ⅰ）和Ｃｕ－Ｆｅ－Ｏ（Ⅱ）催化剂上的吸附行为。研究表明，ＮＯ具有比ＣＯ更强的吸附能力，可与表面氧反应生成硝基、亚硝酸盐、硝酸盐等物种．在ＮＯ＋ＣＯ反应过程中，在催化剂表面存在（ＣＯ．ＮＯ）＊表面络合物（２４００—２４３０ｃｍ￣（－１））和ＮＣＯ＊（异氰酸盐）表面物种，其关系为：ＣＯ＊＋ＮＯ＊→（ＣＯ．ＮＯ）＊＋＊→ＮＣＯ＊＋Ｏ＊．在（Ⅱ）中加入铈，能提高ＣＯ在表面的吸附强度，使ＮＣＯ＊的稳定性下降，同时对ＮＯ在表面的吸附产生影响。根据研究的结果，提出了ＮＯ＋ＣＯ在模型催化剂上的表面反应机理．     

含氮聚硅氧烷配位体及其与金属离子的络合作用

研究ｎ－β（氨乙基）－γ（氨丙基）三乙氧基硅烷［ＮＨ２（ＣＨ２）２ＮＨ（ＣＨ２）３Ｓｉ（ＯＥｔ）３］与二甲基二乙氧基硅烷［（ＣＨ３）２Ｓｉ（ＯＥｔ）２］共水解，制备含－（ＣＨ２）３ＮＨ（ＣＨ２）２ＮＨ２功能基的聚硅氧烷配位体。用ＩＲ、１ＨＮＭＲ和元素分析法对共聚产物的结构进行了分析，同时用紫外－可见光谱法和ＳＥＭ考察了共聚产物与Ｃｕ２＋等金属离子的络合作用。结果发现，两种单体进行了共水解反应，而且随着ＮＨ２（ＣＨ２）２ＮＨ（ＣＨ２）３Ｓｉ（ＯＥｔ）３比例增加，水解程度提高。共聚产物可以与Ｃｕ２＋离子形成稳定的络合物，但不能与Ｚｎ２＋离子或Ａｌ３＋离子形成稳定的络合物或螯合物。     

金属键有机化合物的研究──非对称型η~5－取代环戊二烯基三羰基钼（钨）金属单键化合物的合成及表征

通过η５－Ｒ~１Ｃ＿５Ｈ＿４（ＣＯ）＿３ＭＮａ与η~５－Ｒ~２Ｃ＿５Ｈ＿４（ＣＯ）＿３ＭＮａ（Ｍ＝Ｍｏ，Ｗ）以及η~５－Ｒ~１Ｃ＿５Ｈ＿４（ＣＯ）＿３ＭｏＮａ与η~５－Ｒ~２Ｃ＿５Ｈ＿４（ＣＯ）＿３ＷＮａ在Ｆｅ＿２（ＳＯ＿４）＿３醋酸水溶液作用下的交叉氧化偶联反应，合成了７个新的非对称型金属单键化合物η~５－Ｒ~１Ｃ＿５Ｈ＿４（ＣＯ）－３Ｍｏ─Ｍｏ（ＣＯ）＿３Ｃ＿５Ｈ＿４Ｒ~２－η~５（Ｒ~１，Ｒ~２：Ｃ（Ｏ）Ｍｅ，ＣＯ２Ｅｔ），η５－Ｒ１Ｃ５Ｎ４（ＣＯ）３Ｗ─Ｗ（ＣＯ）３Ｃ５Ｈ４Ｒ２－η５（Ｒ１，Ｒ２：Ｃ（Ｏ）Ｍｅ，ＣＯ２Ｅｔ；Ｈ，ＣＯ２Ｅｔ）和η５－Ｒ１Ｃ５Ｈ４（ＣＯ）３Ｍｏ─Ｗ（ＣＯ）３Ｃ５Ｈ４Ｒ２－η５（Ｒ１，Ｒ２：Ｃ（Ｏ）Ｍｅ，Ｈ；Ｅｔ，Ｃ（Ｏ）Ｍｅ；Ｃ（Ｏ）Ｍｅ，ｎ－Ｂｕ；ＣＯ２Ｍｅ，ｎ－Ｂｕ）．用Ｃ／Ｎ分析、ＩＲ、１ＨＮＭＲ和ＭＳ表征了它们的结构，并对该氧化偶联反应的特点进行了讨论．     

Cu—Fe—Ce—O／γ— Al2O3催化CO＋NO反应的TP—FT—IR研究

运用ＴＰ－ＦＴ－ＩＲ技术研究了ＣＯ、ＮＯ、ＮＯ＋ＣＯ在负载型Ｃｕ－Ｆｅ－Ｃｅ－Ｏ（Ⅰ）和Ｃｕ－Ｆｅ－Ｏ（Ⅱ）催化剂上的吸附行为。研究表明，ＮＯ具有比ＣＯ更强的吸附能力，可与表面氧反应生成硝基、亚硝酸盐、硝酸盐等物种。在ＮＯ＋ＣＯ反应过程中，在催化剂表面存在（ＣＯ．ＮＯ）＊表面络合物（２４００－２４３０ｃｍ＾－１）和ＮＣＯ＊（异氰酸盐）表面物种，其关系为：ＣＯ＊＋ＮＯ＊→（ＣＯ．ＮＯ）＊＋＊→ＮＣＯ     

羰基铁－硫醇（硫酚）－格氏试剂体系与芳酰氯反应的研究──某些μ－芳酰基铁硫配合物的合成及结构

通过Ｆｅ３（ＣＯ）（１２）、硫醇（硫酚）和ＥｔＭｇＢｒ所形成的络盐［（μ－ＣＯ）（μ－ＲＳ）Ｆｅ２（ＣＯ）６］－Ｍｇ＋Ｂｒ与氯代芳酰氯的原位反应，合成了通式为（μ－ＲＳ）（μ－ｏ－ＣｌＣ６Ｈ４ＣＯ）Ｆｅ２（ＣＯ）６和（μ－ＲＳ）（μ－ｍ－ＣｌＣ６Ｈ４ＣＯ）Ｆｅ２（ＣＯ）６（Ｒ＝ｎ－Ｒｕ，ｔ－Ｂｕ，Ｐｈ）的６个新桥芳酰基铁硫配合物，并用Ｃ／Ｈ分析、ＩＲ和１ＨＮＭＲ表征了它们的结构。     

等瓣置换反应的研究——手性簇合物[η^—MeO2CC5H4）（CO）2Mo…

用Ｘ射线衍微法测定了由η＾５－ＭｅＯ２ＣＣ５Ｈ４（ＣＯ）３ＭｏＮａ和〔（η＾５－ＭｅＯ２ＣＣ５Ｈ４）（ＣＯ）２Ｗ〕Ｆｅ－（ＣＯ）３Ｃｏ（ＣＯ）３（μ３－Ｓ）的等瓣置换反应所生成的手性簇合物－〔（η＾５－ＭｅＯ２ＣＣ５Ｈ４）（ＣＯ）２Ｍｏ〕－〔（η＾５－ＭｅＯ２ＣＣ５Ｈ４）（ＣＯ）２Ｗ〕Ｆｅ（ＣＯ）３（μ３－Ｓ）的分子结构及晶体结构。晶体属Ｐ１空间群，晶胞参数ａ＝０．８７１６２（５）ｎｍ，ｂ＝０．８     

苯二甲酰基桥联铁硫配合物［（μ－RS）Fe_2（CO）_6］_2（μ－OCC_6

通过由Ｆｅ３（ＣＯ）１２、ＲＳＨ和Ｅｔ３Ｎ所形成的［（μ－ＣＯ）（μ－ＲＳ）Ｆｅ２（ＣＯ）６］Ｅｔ３ＮＨ于室温下分别与对或间苯二甲酰氯的原位反应，首次合成６个结构新颖的苯二甲酰基桥联铁硫配合物［（μ－ＲＳ）·Ｆｅ２（ＣＯ）６］２（μ－ｐ－ＯＣＣ６Ｈ４ＣＯ－ｐ－μ）（Ｒ＝Ｅｔ，ｎ－Ｂｕ，ｔ－Ｂｕ）以及［（μ－ＲＳ）Ｆｅ２（ＣＯ）６］２（μ－ｍ－ＯＣＣ６Ｈ４ＣＯ－ｍ－μ）（Ｒ＝ｎ－Ｐｒ，ｎ－Ｂｕ，ｔ－Ｂｕ）。经元素分析、ＩＲ光谱及１ＨＮＭＲ表征了它们的结构，并讨论了产物的生成过程。此外，还提出了合成对苯二甲酰氯的一种新方法。     

等瓣置换反应研究—异核四面体簇合物（μ2）FeMoCo（η^5—RC5H4）（C…

通过η＾５－ＣＨ３ＣＯＣ５Ｈ４（ＣＯ）３ＭｏＮａ与（μ３－Ｓ）ＦｅＣｏ２（ＣＯ）９的反应俣成了（μ３－Ｓ）ＦｅＭｏＣｏ（η＾５－ＣＨ３ＣＯＣ５Ｈ４（ＣＯ）８１，１进一步（η＾５－Ｃ５Ｈ５）Ｎｉ的反应合成了（μ３－Ｓ）－ＦｅＭｏＮｉ（η＾５－ＣＨ３ＣＯＣ５Ｈ４）（ＣＯ）５２，（μ３－Ｓ）ＦｅＭｏＮｉ（η＾５－Ｃ５Ｈ５（η＾５－Ｃ５Ｈ５）－（ＣＯ）５３及（μ３－Ｓ）ＦｅＭｏＣｏ（η５－Ｃ５Ｈ５）（ＣＯ     

水合希土硝酸盐与本并及单环己基-12-冠-4配合物的合成、性质及晶体结构

在乙腈介质中合成了苯并－１２－冠－４（简称Ｂ－１２－Ｃ－４）和单环己基－１２－冠－４（简称Ｃｙ－１２－Ｃ－４）的六种希土配合物：ＲＥ（ＮＯ３）３·Ｂ－１２－Ｃ－４（ＲＥ＝Ｐｒ，Ｇｄ，Ｙｂ，Ｌｕ），ＲＥ（ＮＯ３）３·Ｃｙ－１２－Ｃ－４（ＲＥ＝Ｌａ，Ｌｕ）。研究了它们的ＩＲ及＾１ＨＮＭＲ性质，并测定了四种单晶的结构，用ＩＮＤＯ法计算了Ｌｕ（ＮＯ３）３·Ｂ－１２－Ｃ－４，Ｌｕ（ＮＯ３）３·Ｃｙ－１２－Ｃ     

[Cu2（Gly—GlyO）2（4,4‘—bpy）（OH）2].9H2O配合物的合成,晶…

将Ｇｌｙ－ＧｌｙＯ，４，４＇－联吡啶与Ｃｕ（ＮＯ３）２．Ｈ２Ｏ在二次水溶液中反应，合成出以４，４＇－ｂｐｙ为中继基，Ｃｌｙ－ＧｌｙＯ为螯环的新型双核铜配合物，经Ｘ射线单晶结构分析确定该配合物晶体的化学结构式为［（Ｈ２ＮＣＨ２ＣＯＮＨＣＨ２ＣＯＯ）Ｃｕ（ＯＨ）（Ｃ１０Ｈ８Ｎ２）Ｃｕ（ＯＨ）（Ｈ２ＮＣＨ２ＣＯＮＨＣＨ２ＣＯＯ）］．９Ｈ２Ｏ。晶体属Ｐ１空间群，晶胞参数α＝１．１４１２ｎｍ，ｂ＝１．２２９     

利用手持技术改进测定乙醇分子结构实验

利用压强传感器代替排水集气法,改进测定乙醇分子结构实验的仪器装置,并探索最佳反应条件。另外,设计两个空白实验,结合压强变化曲线对实验误差进行相关讨论。     

光谱仪测试范围的扩展

由于石化行业的生产需要，其材质的使用具有多样性和广泛性，经常会出现顾客委托的测试样品的一个或几个元素跨越光谱仪现有测试程序测量范围的情况。本法通过对光谱仪测试原理的认识，根据光谱仪的测试能力及标样的采集，实现了一个或几个元素测量范围的扩展，并对其测量的影响因素进行了研究。     

Influence of viscosity of medium on processes of oxygen quenching of excited states of mesoporphyrin

The oxygen quenching rate constants for singlet and triplet excited states of the dimethyl ester of mesoporphyrin IX increase with decreasing viscosity of the medium and reach a maximum at a viscosity of approximately 0.4 mPa·sec, after which the rate constants begin to decrease. The drop in rate constant with increasing fluidity of the medium may be related to a nonequilibrium character of the elementary act in the interaction of the reactants in the solvent cage. In viscous media such as isopropyl alcohol, isobutyl alcohol, and isoamyl alcohol, the reaction radius is greater than the sum of the radii of the reacting particles. The long-range character of these processes is due to the relatively weak dependence of the quenching probability on distance.Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 25, No. 2, pp. 161–167, March–April, 1989.     

Dichroism of absorption and polarization of phosphorescence of molecules of the closed form of nitrobenzospirothiopyran

The spectral-polarization characteristics of absorption and phosphorescence of molecules of the initial form of nitro-substituted indolinospirobenzothiopyran were studied in oriented polyethylene films and in solutions with different polarity. An oscillator model of the electron transitions responsible for the formation of absorption and luminescence spectra was suggested. It was established that the principal differences in the spectral and photophysical properties of the compound studied and its oxygen-containing analog are associated with the fact that the electronegativity of the S atom is lower than that of the O atom. Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1143–1146, June, 1997.     

Neutral diterpenoids of oleoresins of five species of conifers of Transcarpathia

The compositions of the neutral diterpenoids of the oleoresins of five species of conifers growing in the Transcarpathia have been studied. It has been found that the oleoresins ofAbies alba M.,Larix decidua M., andPicea excelsa L. contain more than 50% of neutral diterpenoids. The group and qualitative compositions of the oxygen-containing diterpenoids have been determined. In the oleoresins ofAbies alba,Picea excelsa, andPicea abies tertiary alcohols — cis-abienol and isocembrol — predominate, while inLarix decidua the main component is the hydroxy ester larixyl acetate. Primary alcohols related to the resin acids have been found in all the oleoresins investigated. Features of the distribution of diterpenoids according to the species of conifers have been revealed. The results obtained are necessary for the chemotaxonomy of conifers of the family Pinceae.Novosibirsk Institute of Organic Chemistry, Siberian Branch, Academy of Sciences of the USSR. Translated from Khimiya Prirodynkh Soedinenii, No. 6, pp. 812–816, November–December, 1988.     

Determination of heats of detonation and influence of components of composite explosives on heats of detonation of high explosives

The heats of detonation of 20 simple high explosives and explosive mixtures were determined by means of an adiabatic detonation calorimeter designed by the authors. The results indicated that the performance of the instrument was reliable and the experimental data were very accurate. For explosive mixtures, there was a linear accumulative relationship between the heats of detonation of the explosive mixture and its components. Accordingly, the heats of detonation of explosive mixtures could be calculated directly from the heats of detonation of simple explosives and the characteristic heats of other components. The experiments showed that the gold or brass shell of the cylindrical charge could be substituted by a thick-walled porcelain shell, which had the advantage of cheapness.

     

物质分配系数的测定实验改进

实验教学目的是从解决实际问题出发,以实验技术训练和实验设计思想培养为目标。介绍了将单一的物质分配系数测定实验改进为综合实验,提高了实验效果及实验资源利用率。     

Calculation of enthalpies of hydrogenation of hydrocarbons

Sets of hydrogen molecule equivalents have been developed which permit the calculation of hydrogenation of different types of carbon-carbon bonds from ab initio total energies (3-21G and 6-31G* basis sets, and, to a more limited extent, for MP2/6-31G* data) of reactants and products. The calculated enthalpies of hydrogenation are in good agreement with experiment for unstrained molecules, with average errors on the order of 2 kcal/mol. The 6-31G* equivalents allow the enthalpies for strained molecules to be calculated accurately, but the 3-21G equivalents do not. The equivalents for both basis sets have been tested by calculating the enthalpies of hydrogenation of carbon-carbon bonds in nitrogen- and oxygen-containing organic molecules, free radicals, and classical carbocations. The results are in good agreement with experiment in most cases.     

非那雄胺合成工艺改进

非那雄胺能抑制5α-还原酶的活性,明显降低二氢睾酮水平,是一种治疗良性前列腺增生的有效药品。该合成工艺以甾烯酮酸为原料,将其与氯化亚砜反应,无须分离即与叔丁胺反应得17β-酰胺化合物,再氧化开环,环合,氢化,脱氢合成了非那雄胺。经元素分析、IR、1HNMR、13CNMR、MS分析表征了其结构。该法无须使用昂贵的2,2-二吡啶二硫化物和剧毒药品苯亚硒酸酐,且以乙酸铵代替氨气,降低了对设备的要求和腐蚀,更适用于工业生产。