尾式亮氨酸卟啉锌配合物的合成和光谱性质研究

合成了尾式亮氨酸卟啉—— [5- (对亮氨酸丁氧苯基 ) - 1 0 ,1 5,2 0 -三苯基卟啉及其锌 ( )的配合物 ( Zn[Leu- TPP]) ,用元素分析、红外光谱、电子吸收光谱和激光拉曼光谱等手段对其结构进行了表征。研究了吡啶 ( Py)、4-甲基吡啶 ( 4 - Me Py)、4-醛基吡啶 ( 4 - CHOPy)、4-氨基吡啶 ( 4 - Am Py)等化合物对 Zn[Leu- TPP]电子光谱的影响     

氢氧化2,9,16,23-四羧基酞菁铁(Ⅲ)与咪唑类配体在有机溶剂中轴向配位反应热力学研究

用分光光度法研究了酞菁铁[Fe（Ⅲ）Pc（COOH4）OH]在二甲基亚砜（DMSO）中与咪唑类配体的轴向配位反应热力学。测得了反应（1）的平衡常数K,配位数n,标准摩尔焓变△rHn^0和标准摩尔熵变ΔrSn^0。     

两性水溶性卟啉的合成及其与贵金属配合反应的分光光度研究

合成了两性水溶性卟啉四(N-羧甲基-4-吡啶)卟啉[T(l-PC)P]和四(4-(N,N,N-羧甲基二甲氨基)苯)卟啉[T(4-CDMAP)P]。研究了这两种卟啉与贵金属 Ag(Ⅰ)、Pd(Ⅱ)和 Au(Ⅲ)配合的紫外-可见分光光度性质。确立了最佳配合条件、配合物的摩尔吸光系数以及配合物的组成。     

4-(2-吡啶偶氮)-邻苯三酚与Zn(Ⅱ)显色反应的分光光度法

研究了新显色剂 4 - (2 -吡啶偶氮 ) -邻苯三酚 (PAPG)与 Zn( )的显色反应。在 p H =8.6的缓冲溶液中 ,该试剂与 Zn( )反应生成稳定的蓝色配合物 ,其最大吸收波长为 6 0 3nm ,对比度 10 3nm,表观摩尔吸光系数为 3.14× 10 4 L· mol- 1 · cm- 1 。Zn( )质量浓度在 0 .0 0 2～ 1.0 4 m g/ L范围内服从比耳定律。该方法应用于人发中 Zn的测定 ,同时用原子吸收法对照 ,结果令人满意     

一种新型一维配合物的设计及其荧光性能研究

在溶剂热的条件下利用柔性双功能配体制备了新颖的配合物{Cd(Tpebc)(Py)(H_2O)}_n(1)(Tpebc=2-乙氧基-3-[[4-[2-(1H-四唑-5-基)苯基]苯基]甲基]-3H-苯并咪唑-4-羧酸,Py=吡啶)。X-射线单晶衍射测定了该配合物是一维链状结构,并且配合物的中心金属离子都是七配位变形的五角双锥配位构型,与4个氧原子和3个氮原子配位。在室温条件下,目标配合物表现出了强的荧光特性。     

新型尾式色氨酸四苯基卟啉铁(Ⅲ)与咪唑轴向配位反应热力学研究

研究了新型尾式色氨酸四苯基卟啉铁 ( ) [Fe( Trp- TPP) ]Cl在三氯甲烷中与咪唑 ( Im)轴向配位反应。用光度法测得了反应 ( 1 )的平衡常数 K,标准摩尔焓变ΔH m 和标准摩尔熵变ΔS m。实验结果表明 ,反应 ( 1 )是熵降低焓也降低的过程。　 Fe( Trp- TPP) Cl+ 2 Im [Fe( Trp- TPP) ( Im) 2 ]+ Cl-( 1 )     

含能配合物M(BTA)(bpy)_m·nH_2O的合成及液相生成反应热动力学研究

室温下合成了6种未见报道的固态含能配合物M(BTA)(bpy)m.nH2O(M=Mn,m=1,n=1;M=Co,m=2,n=5;M=Ni,m=2,n=6;M=Cu,m=2,n=0;M=Zn,m=2,n=1;M=Pb,m=1,n=0;BTA=N,N’-二四唑胺离子,bpy=2,2’-联吡啶),对它们进行了组成、红外光谱、密度等表征。测定了298.15 K下各配合物的液相生成反应焓变△rHmθ,改变液相反应温度,在实验和计算基础上,得到了液相生成反应的热力学参数(活化焓△Hθ≠、活化熵△S≠θ和活化自由能△Gθ≠)、速率常数k和动力学参数(表现活化能E、频率因子ln[A/s]和反应级数n)。     

Lewis酸性离子液体合成、表征及其催化性能的研究

合成了基于吡啶、三乙胺阳离子不同阳阴摩尔组成的[Py]Cl-AlCl3、[Py]Cl-ZnCl2、Et3NHCl-AlCl3及Et3NHCl-ZnCl2离子液体;测定了不同摩尔组成[Py]Cl-AlCl3和[Py]Cl-ZnCl2离子液体熔点,最后以制备的四种阳阴摩尔比均为4∶6的离子液体催化合成六氯环三磷腈,结果表明具有中等Lewis酸性的ZnCl2离子液体所得产物的产量高、选择性好,而强酸性的AlCl3离子液体并不适合该反应的合成。     

钇(Ⅲ)与卟啉配位反应的物理化学性质研究

用光度法研究了5-(4-羟基苯基)-10,15,20-三苯基卟啉(H2TOHPP)在溶剂CHCl3中与Y3 离子配位反应的动力学及热力学,求得了钇(Ⅲ)卟啉生成反应的速率常数、活化能以及平衡常数和配位数,并利用温度系数法求得了反应体系的热力学函数△rHθm和△rSθm,讨论了反应过程中的电子吸收光谱.     

吡啶氧丁氧苯基三甲氧苯基卟啉及其Fe(Ⅲ)配合物的合成与表征

报道了一种新型尾式卟啉化合物 - 5 -对 [4- (间吡啶氧基 )丁氧基 ]苯基 - 1 0 ,1 5 ,2 0 -三对甲氧苯基卟啉及其 Fe( )配合物的合成。并通过元素分析、红外光谱、核磁共振光谱及紫外可见光谱等对其结构进行了表征     

乙烯酮(双乙烯酮)下游产品废水的治理技术

乙烯酮(双乙烯酮)是十分重要的化工中间体,其下游产品较多。江苏某化工厂开发生产乙烯酮(双乙烯酮)下游产品三十多个,年生产规模三万多吨,是国内以乙烯酮(双乙烯酮)为中间体生产精细化学品的综合骨干企业。针对乙烯酮(双乙烯酮)下游产品废水特点,该厂结合企业实际,开展了产品优化,结构调整,清洁生产,资源循环利用,节水降耗等工作,从源头削减了污染物的生产。同时投资二千多万元新建预处理装置三套,6000m3/d废水生化处理装置一套,使全厂乙烯酮(双乙烯酮)下游产品的废水得到了有效的治理。     

几种乙炔加压设备性能的比较

阐述并比较了几种加压设备在乙炔加压清净过程中的性能和特点。     

三种煤样燃烧热的测定

本文通过三个厂家提供的三种煤样燃烧热的测定,由测定结果综合得出3号煤样燃烧最完全、燃烧热也最大,是三个煤样中最好的一种。     

Semi-empirical equation of state of metals. Equation of state of aluminum

A semi-empirical equation of state for metals is described. Its capabilities are demonstrated by the example of the equation of state for aluminum. New experimental data are presented on the location of the isentrope of aluminum for unloading from the state at p = 229.71 GPa on the shock adiabat to an aerogel (SiO₂) of density 0.08 g/cm³. __________ Translated from Fizika Goreniya i Vzryva, Vol. 44, No. 2, pp. 61–75, March–April, 2008.     

小议汽车涂装工艺设计对涂装成本的影响

论述了涂装工艺设计对涂装设备投资、涂装生产成本的影响。     

水泥水化热测定方法综述

水泥水化热是中、低热水泥和核电工程用水泥的一项关键的技术指标。全球范围内测定水泥水化热的方法有溶解法、直接法/半绝热法、等温传导量热法三种。本文总结了中、美、欧相关方法标准,对其测试原理、仪器设备、试验过程等方面进行了比对,并对其在领域的应用做了简单的概括。     

Measurement of the gradient of viscosity with composition of mixtures of non-ideal gases

A perturbation viscometer is a differential capillary viscometer that measures the logarithmic viscosity gradient of the viscosity-composition curve for gas mixtures. Measurements are made at different gas mixture compositions. Integration of the logarithmic viscosity gradients measured over the full composition range gives the mixture viscosity relative to the viscosity of one of the pure components of the gas mixture. This method is attractive because, for measurements of equal precision, integration of the gradients is potentially an order of magnitude more precise than measurement of the viscosities directly. It can also work at high and low temperatures and perhaps high pressures.The perturbation viscometer has been used to make measurements on ideal gas mixtures at ambient and elevated temperatures. The situation is more complicated when the gas mixtures are non-ideal. Extra effects due to density differences, molar volume change on mixing and differential thermal expansion may be measured in addition to the desired viscosity change producing systematic errors in the results. Thus, a more sophisticated apparatus is required. The standard perturbation viscometer has been modified to separate out the extra effects to permit measurement of the true change in viscosity. In addition, the theoretical operation of the modified apparatus has been revised to account for the design changes to permit calculation of the viscosity-composition profiles from the results.The apparatus has been tested using helium-HFC-125 mixtures and two new viscosity-composition profiles are presented for these mixtures at 23 and . Internal consistency tests have been used to confirm that the data produced are of high quality with an estimated uncertainty in the viscosity ratio data at of 0.9% and at of 1.5%.     

塔设备改造选型的分析

就当前扩产增容中塔设备设计和改造时板式塔和填料塔的选型问题加以分析。在评述目前国内常用的几种塔板和新型填料之后，着重介绍一种新型塔板（导向梯形浮阀塔板）和一种新型填料（波环填料——乾隆帕克）。     

Calorimetric and Computational Study of Enthalpy of Formation of Diperoxide of Cyclohexanone

A thermochemical rather simple experimental technique is applied to determine the enthalpy of formation of Diperoxide of ciclohexanone. The study is complemented with suitable theoretical calculations at the semiempirical and ab initio levels. A particular satisfactory agreement between both ways is found for the ab initio calculation at the 6–311G basis This set level. Some possible extensions of the present procedure are pointed out.     

Effect of degree of deacetylation of chitin on the properties of chitin crystallites

In the present article, chitin from crab shell was systematically deacetylated using a NaOH treatment with control of the reaction time. The degree of deacetylation, monitored using solid-state NMR, revealed that the reaction was pseudo-first order. Based on this, swollen and NaOH-saturated particles are proposed as the reaction system. The weight loss of the partially saponified and neutralized samples after HCl hydrolysis increased linearly with the degree of deacetylation. The crystallinity of the samples was found to increase after acid hydrolysis. According to conductimetric titration, the surface charge density of the crystallites, after acid hydrolysis, was found to increase with base treatment time. The effect of surface charge on the formation of a chiral nematic phase, due to the rodlike nature of the crystallites, was explored. These results show that because the contribution of charged particles to the ionic strength was significant the double layer compression was affected, especially since the surface charge density was close to the Manning limit. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 65:373–380, 1997