取代型钨镓杂多配合物的导电性及其磁性

合成了过渡金属取代的钨镓杂多配合物α－Ｎａ７「ＧａＷ１１Ｃｏ（Ｈ２Ｏ）Ｏ３９」．１６Ｈ２Ｏ，α－Ｎａ７Ｈ２「ＧａＷ１０Ｃｏ２（Ｈ２Ｏ）２Ｏ３９」．１６Ｈ２Ｏ和α－ＮａｎＨｍ「ＧａＷ９ＭＥ（Ｈ２Ｏ）３Ｏ３７」．１６Ｈ２Ｏ「Ｍ＝Ｃｏ（Ⅱ），Ｎｉ（Ⅱ，）Ｖ（Ⅴ）」，通过红外，紫外，ＩＣＰ，ＴＧ－ＤＴＡ，ＥＰＲ，ＸＰＳ，＾１８３ＷＮＭＲ，极谱等手段进行了表征。     

铕和镧与吡啶—2,6—二甲酸配合物的NMR研究

合成了稀土铕，镧与吡啶－２，６－二甲酸形成的二元配合物及铕与邻菲罗啉和吡啶－２，６－二甲酸形成的三元配合物，经元素分析确定该配合物的组成分别为二元：Ｎａ３「Ｅｕ（ＤＰＣ）３」．２Ｈ２Ｏ，Ｎａ３「Ｌａ（ＤＰＣ）３」２Ｈ２Ｏ；三元：ＮａＥｕ（ＤＰＣ）２；ｐｈｅｎ．４Ｈ２Ｏ。用核磁共振研究了配体与稀土的配位方式，讨论了诱导效应、屏蔽效应及稀土离子的顺磁性对配合物化学位移和ＮＭＲ谱图的影响。     

非对称Schiff碱过渡金属配合物模拟酶催化烯烃环氧化（I）

研究了温和条件下以亚碘酰苯为氧源，非对称性的和对称性的Ｍｎ（Ⅲ）Ｓｃｈｉｆｆ碱配合物「Ｍｎ（Ⅲ）（ＣＢＰ－ｐｈｅｎ－Ｘｓａｌ）Ｃｌ，Ｘ＝Ｈ，Ｃｌ，Ｂｒ，Ｎｏ２，Ｃｈ３，ＯＣＨ３」和「Ｍｎ（Ⅲ）（ＣＢＰ－Ｒ－ＣＢＰ）Ｙ，Ｒ＝ＣＨ２ＣＨ２－，－ＣＨ（ＣＨ３）ＣＨ２－，－Ｃ６Ｈ４－；Ｙ＝Ｃｌ，ＯＣＨ３」催化非官能性烯烃苯乙烯，环己烯和α甲基苯乙烯的环氧化反应，结果表明，非对称配合物Ｍｎ（Ⅲ）的电子结合能     

RE[CH2（CH2）4CONC4H9]3（NO3）3（RE=La,Dy）的合成和晶体结构

采用Ｘ－射线四园衍射仪测定了Ｄｙ「Ｃｈ２（ＣＨ２）４ＣＯＮＣ４Ｈ９」３（ＮＯ３）３和Ｌａ「ＣＨ２（ＣＨ２）４ＣＯＮＣ４Ｈ３」３（ＮＯ３）３的晶体结构。两个配合物具有相似的结构，均属单斜晶系，空间群为Ｐ２１／ｃ。晶体参数：Ｄｙ「Ｌａ」：ａ＝１．８５６４（３）「１．８５６４（２）」ｎｍ，ｂ＝０．９７６９（２）「０．９８３４（１）」ｎｍ，ｃ＝２．１８６３（６）「２．２００３８（７）」ｎｍ，β＝９６．０８     

稀土与氨基酸固体配合物的合成及生物活性的研究

用稀土硝酸盐与γ－甲基－α氨基戊酸（白氨酸，Ｃ６Ｈ（１３）ＮＯ２）制得了８种组成为ＲＥ（Ｌｅｕ）３（ＮＯ３）３·ｎＨ２Ｏ（ＲＥ＝Ｌａ、Ｃｅ、Ｐｔ、Ｎｄ、Ｓｍ、Ｅｕ、Ｙｂ、Ｙ，ｎ＝１～３）的新固体配合物；与δ－胍基－α氨基戊酸（精氨酸，Ｃ６Ｈ（１４）Ｎ４Ｏ２）制得了４种组成为ＲＥ（Ａｒｇ）ｎ（ＮＯ３）３．ｍＨ２Ｏ（ＲＥ＝Ｌａ、Ｐｒ、Ｎｄ、Ｓｍ，ｎ＝２～３，ｍ＝１～３）的新固体配合物。经元素分析、ＩＲ、摩尔电导及核磁共振时配合物进行厂表征。选用部分稀上盐，配合物及氨基酸分别对５种细菌、２种霉菌进行了生物活性试验，证明稀士氨基酸配合物均具有抑菌或杀菌作用。     

SYNTHESIS AND￣（183）W NMR CHARACTERIZATI0N OF α－［P＿2W＿（15）O＿（62）Ti＿3］￣（12－） HFTEROPOLYANION

ＳＹＮＴＨＥＳＩＳ　ＡＮＤ￣（１８３）Ｗ　ＮＭＲ　ＣＨＡＲＡＣＴＥＲＩＺＡＴＩ０Ｎ　ＯＦ　α－［Ｐ＿２Ｗ＿（１５）Ｏ＿（６２）Ｔｉ＿３］￣（１２－）　ＨＦＴＥＲＯＰＯＬＹＡＮＩＯＮＳＹＮＴＨＥＳＩＳＡＮＤ￣（１８３）ＷＮＭＲＣＨＡＲＡＣＴＥＲＩＺＡＴ...     

稀土铕与2—[（取代苯胺基）羰基]苯甲酸配合物的研究

报道了配合物Ｅｕ（ＸｎＰ）３．３Ｈ２Ｏ「其中Ｘ＝Ｈ，２－Ｃｌ，３－ＯＨ，４－Ｂｒ，３－ＮＯ２，２－ＯＣＨ３，２－ＣＨ３，２，４－二氯；Ｐ＝２－（ＣＯＯ）Ｃ６Ｈ４ＣＯＮＨＣ６Ｈ５－＾－，ｎ＝１，２」的制备，并用元素分析，红外光谱，电子反射光谱，热重分析进行了表征。     

具有不同类型桥基的双核Cu（Ⅱ）—Schiff碱配合物的合成 …

合成了３个分别以Ｃ２Ｏ＾２－４（「Ｃｕ２（Ｌ１）２（ｏｘ）」，１），ＡｃＯ＾－（「Ｃｕ２（ＡｃＯ）（Ｌ２）２」ＢＦ４，２）和酚氧（「Ｃｕ２９Ｌ３０２」（ＣｌＯ４）２，３）为桥基的双核铜配合物，并测定了１的复配合物「Ｃｕ２（Ｌ１）２（ｏｘ）」「Ｆｅ（ＯＨ）２（Ｈ２Ｏ）４」ＣｌＯ４．Ｈ２Ｏ及２和３的晶体结构。     

1,2—双（1‘—苯基—3’—甲基—5‘—氧代吡唑—4’—基）—1,2…

用萃取法合成了１５种１，２－双（１＇－苯基－３＇－甲基－５＇－氧代吡唑－４＇－基）－１，２苯二酮（ＢＰＭＯＰＰ，简作Ｈ２Ｌ）稀土配合物。元素分析确定其化学组成为ＲＥ２Ｌ３·ｎＨ２Ｏ。通过电子光谱、红外光谱、核磁共振谱、热谱、摩尔电导等进行了表征，并讨论了配合物的性质。     

新型金属—双二硫杂戊烯（M—BDT）配合物的合成,表征及X射线的？…

合成了４个新型Ｎｉ－ＢＤＴ配位化合物,ＢＤＴ为具有９个Ｓ原子的杂戊烯,元素分析、ＩＲ谱、ＵＶ谱确定这４个新配合物的化学式分别为「（ＣＨ３）４Ｎ」２「Ｎｉ（Ｃ５Ｓ９（２」「（Ｃ２Ｈ５）４Ｎ」２·「Ｎｉ（Ｃ５Ｓ９）２」（２）,「（Ｃ４Ｈ９）４Ｎ」２「Ｎｉ（Ｃ５Ｓ９）２」（３）,「（Ｃ６Ｈ５）（ＣＨ５）３Ｎ」２「Ｎｉ（Ｃ５Ｓ９）２」（４）,采用Ｉｔｏ法对配合物１的Ｘ射线粉末图进行了指标化,确定该晶体属单     

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。     

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.     

Acid hydrolysis of carboxymethylcellulose of low degree of substitution

Cotton cellulose was swollen in a sodium hydroxide solution and carboxymethylated by a two-bath method for different periods of time for each process. The kinetics of acid hydrolysis and the crystallinity of the swollen and carboxymethylated samples were measured. The proportion of broken bonds, rate constants for hydrolysis, and permeability of cellulose to hydrolyzing agents were calculated. The susceptibility of glycosidic linkages to acid hydrolysis was improved by carboxymethylation more than by swelling in alkali. The increased accessibility of carboxymethylcellulose to acid was regarded as a consequence of increased intra-and intercrystalline swelling and of the glycosidic bonds' weakness caused by the electron-attracting carboxymethyl group on the C-6 position.     

恶臭嗅辨实验室建设探讨

针对恶臭测试的环境影响问题,提出了解决的实例方案,并对方案的要点及优缺点进行讨论,此方案在实际操作中具有较好的效果。     

Estimation of Kinetic Parameters of Thermal Oxidation of Ilmenite

The aim of the presented work was the investigation of thermal oxidation of ilmenite in static air atmosphere. The investigations were carried out by use of a derivatograph (MOM, Hungary). The changes of crystallographic structure of investigated samples were identified by X-ray diffractometry on Philips PW-1710 diffractometer. In temperature above 500°C appears structure of hematite Fe₂O₃. On the basis of the thermogravimetric measurements, the contracting area and contracting volume models were found as the best fitting experimental data. This revised version was published online in August 2006 with corrections to the Cover Date.     

Mechanism of action of base-catalyzed oxygenation of phenol derivatives

Cyclopropyl derivative of 2,6-di-tert-butylphenol is synthesized as a probe to investigate the mechanism of base-catalyzed autooxidation of phenol derivatives. Our study indicates that one electron reduction of molecular oxygen from phenolate gives phenoxyl radical 3, a key intermediate of autooxidation. The coupling of phenoxyl radical and superoxide radical gives peroxylate anion 4 and produces the final epoxy alcohol adduct 6.     

氯氧化镁生成热的研究

用氧化镁氯化镁水溶液制备了8水合氯氧化镁[nMg(OH)2·MgCl2·8H2O], 并测定了其在盐酸中的溶解热, 实验结果表明, 氯氧化镁溶解热与n值呈线性关系, 根据溶解热求出5Mg(OH)2·MgCl2·8H2O和3Mg(OH)2·MgCl2·8H2O的生成热分别为-7727.1和5888.1kJ·mol^1^-。     

化学计量中不确定度评定研究进展

测量不确定度是表征合理地赋予被测量之值的分散性的参数。本文针对化学计量不确定度评定基础模型仅适用于线性模型、概率分布为正态分布或缩放位移t分布等局限,介绍了近年来不确定度评定的研究热点:蒙特卡罗方法(Monte Carlo Method,MCM),不确定度评定的来源、评定概念、评估方法及其发展过程,扩大了测量不确定度评定与表示的适用范围。     

微量钙的测定方法研究进展

介绍了1995-2006年期间测定微量和痕量钙的方法,如电感耦合等离子体-原子发射光谱法、原子吸收光谱法以及离子色谱法等的工作原理和特点,并说明了其测定微量钙的应用领域。并对微量钙的测定技术进行了展望(引用文献55篇)。     

Stages of thermal decomposition of sodium oxo-salts of sulphur

Thermal behaviour of sodium oxo-salts of sulphur: Na₂SO₄, Na₂S₂O₇, Na₂S₂O₆, Na₂SO₃, Na₂S₂O₅, Na₂S₂O₄, Na₂S₂O₃, Na₂S₃O₆ and of sulphides Na₂S and Na₂S₂ was studied on heating up to 1000°C. The experiments were performed with anhydrous compounds obtained from commercial products by recrystallisation and dehydration. The stage mechanisms of decomposition of anionic sub-lattices of the salts have been proposed basing on the Górski’s morphological classification of simple species. The thermal stability and the stage decomposition mechanisms were correlated with the structure and the potential chemical properties of the salt anions. The thermal decomposition processes were studied by means of thermal analysis, and the decomposition products were identified by means of X-ray phase analysis.