查询词典 isomerization

Analyzed the relative stability and isomerization, it was found that Ni3BPsuperscript (3 was thermodynamically the most stable one. In addition, Ni3BPsuperscript (1, Ni3BPsuperscript (1 with singlet state and Ni3BPsuperscript (3, NiPsuperscript (3 with triplet state are kinetically stable ones.

分析各异构体的相对稳定性及异构化过程得出：Ni3BP上标(3是单、三重态中热力学最稳定的异构体；单重态的Ni3BP上标(1、Ni3BP上标(1和三重态的Ni3BP上标(3、Ni3BP上标(3具有一定的动力学稳定性。

The synthesis of dimethyl fumarate was studied from maleic anhydride and methanol with phospho molybdic acid as the catalyst and bromate as the isomerization catalyst by one-step in this short paper.

采用固体杂多酸磷钼酸为催化剂，溴酸盐为异构化剂，经顺酐一步合成了富马酸二甲酯，探讨了醇酐比、反应时间、催化剂的量、异构化剂的量以及异构化时间对合成DMF收率的影响，并确立了最佳反应条件。

The DFT (B3LYP/6-31＋G**) method was used to study the conformations and isomerization of the isolated and monohydrated 2',3'-dideoxy-2',3'-didehydroguanosine (D4G) molecules in gas phase.

采用密度泛函方法在B3LYP/6-31＋G**水平上研究了2'，3'-二脱氧-2'，3'-二去氢鸟嘌呤核苷分子(D4G)的构象。

The DFT B3LYP/6-31+G(superscript ** method was used to study the conformations and isomerization of the isolated and monohydrated 2', 3'-dideoxy-2', 3'-didehydroguanosine (D4G) molecules in gas phase.

采用密度泛函方法在B3LYP/6-31+G水平上研究了2'，3'-二脱氧－2'，3'-二去氢鸟嘌呤核苷分子(D4G)的构象。

The catalyzed isomerization without the presence of hydrogen occurs over M-2 composite mordenite in the self-designed tube reactor, which use 1,2,4-trimethylbenzen as raw materials.

非临氢催化异构化反应试验采用研制的M-2型复合丝光沸石催化剂，以高纯偏三甲苯油为原料，在设计的管式反应器中进行。

The above view of isomerization between the structure of olefine alcohol and olefine ketone can succeed to explain that the structure and properties of C〓 Fullerols change with the pH value of its solution.

作者提出的上述富勒醇的结构以及烯醇与烯酮的互变异构的观点能成功地解释C〓、C〓富勒醇的结构随其溶液pH值的变化而发生变化的现象。

According to the evaluate and the sift through light paraffine isomerization catalyst,It showsthat preparated Pt-SO_4~(2-)/ZrO_2-Al_2O_3 catalyst achieved superior activity under the condition thatthe calcination temperature is 650°C、 concengtration of SO_4~(2-) is 0.5mol/L、 the content ofAl_2O_3 is 30% and content of Pt is 5%.

通过对轻质烷烃异构化催化剂的评价与筛选，表明所制备的 Pt-SO_4~(2-)/ZrO_2-Al_2O_3 催化剂在焙烧温度为 650°C 、SO_4~(2-)浓度为 0.5mol/L、第二金属氧化物组分 Al_2O_3含量为 30%，金属 Pt 含量为 0.3%时，该催化剂用于异构化反应效果最佳。

Kinetics characteristics of α- pinene isomerization catalyzed by activated carbon supported phosphotungstic acid was studied .

研究了活性炭固载磷钨酸催化α－蒎烯的异构化反应的动力学特征，研究表明，以环己烷作溶剂，α－蒎烯在活性炭固载磷钨酸上的异构化服从准一级动力学模型，其反应的表观活化能为100。

The photoresponsive properties of the azobenzene polymers are based on the photoinduced fast and reversible isomerization between the trans and cis isomers of azobenzene upon exposure to UV or visible light, which triggers significant changes in the physicochemical properties of polymer materials. Recent years have witnessed a rapidly increasing interest in azo-containing polymers due to their potential in various optical and optoelectronic applications such as optical data storage, liquid-crystal displays, molecular switches, nonlinear optical devices, photomechanical systems and so on.

偶氮分子在光照下能够发生可逆顺反异构，从而引起偶氮聚合物发生分子取向以及构象转变，使得偶氮聚合物具有优越的光学活性，同时偶氮聚合物结合了偶氮单体的光学活性和高分子材料优异的力学性能和加工性能，在光信息存储材料、非线性光学材料、液晶材料等领域都有重要的应用价值。

Peptidyl-prolyl cis/ trans isomerization is of considerable biological significance and prolyl residue plays an important role in the final structure of proteins.

由分辨率。25nm，同一性0％的2401条肽链中计算提取了全部顺式与反式脯氨酸肽键的位置，数目分别为1221个与26401个，从而建立了一个较大规模的脯氨酸肽键数据集。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。