1) isospectral molecules
同谱异构体
2) Isopectral molecules
同谱异构图
1.
Isopectral molecules refers to the different graphs those have the same characteristic polynomials.
同谱异构图是指图的邻接矩阵的特征多项式相同但图形结构不同的图形。
3) isomer
[英]['aisəmə] [美]['aɪsəmɚ]
同分异构体
1.
The investigation on isomeric configuration stability of interlinking boranes neo-B_(20)H_(18)~(2-);
互连式硼烷neo-B_(20)H_(18)~(2-)同分异构体的构型稳定性研究
2.
Improving the Accuracy of Isomer's PLS Prediction Model in Near Infrared Spect rum Analysis by Subtractive Spectra Technology;
近红外差谱法选择信息区提高同分异构体预测模型准确度
3.
Adopting the Method of Correlation Coefficient to Improve the Accuracy of the Xylene Isomer's Prediction Model;
提高二甲苯3种同分异构体预测模型准确性的相关系数法
4) isomeric compounds
同分异构体
1.
Vapor-liquid equilibria of TDA isomeric compounds in vacuum and application;
低压下甲苯二胺同分异构体的气液平衡及应用
2.
High speed countercurrent chromatography(HSCCC) was successfully used for the separation and preparation of isomeric compounds.
应用高速逆流色谱法对同分异构体的分离纯化进行研究。
3.
In this work, quantum chemical calculation on some organic phosphonic acids, 2-phosphono-butane-1,2,4-tricarboxylic acid(PBTCA) and its isomeric compounds, which behave as scale inhibitors were carried out by using Density Functional Theory(DFT) methods of Gaussian98 program package, Onsager model was adopted to simulate the solvent effect.
本文应用量子化学方法首次较系统地计算研究了有机膦酸类阻垢缓蚀剂PBTCA及其同分异构体的结构。
5) Isomeric compound
同分异构体
1.
Curing kinetics for two kinds of isomeric compound different proportion BPF-epoxy resin/MeTHPA/DMP-30 system is studied by means of differential scanning calorimetry(DSC)and the extreme value method.
利用差示扫描量热法(DSC)和极值法对两种同分异构体分布不同的双酚F环氧树脂/甲基四氢苯酐/DMP-30体系固化动力学进行了研究,求得了体系的固化动力学参数,并对同分异构体分布与固化特性之间的关系进行了初步讨论。
2.
The electrospray ionization-mass spectrometry result showed that it was an isomeric compound of losartan,which had same fragmentation pattern wi.
采用反相柱色谱法对洛沙坦原料中的洛沙坦同分异构体杂质(含量约4%)进行了分离制备。
3.
There are still quite a few difficulties in separating isomeric compounds nowadays.
同分异构体的分离是分离研究中的难点。
6) isomers
同分异构体
1.
Twenty isomers of tetrasulfur ions S~+-4 and S~--4 were acquired by means of the molecular model design.
用分子图形软件分别设计出S4+,S4-离子的20种同分异构体构型,使用B3P86密度泛函进行几何构型优化和振动频率计算,分别得到了它们的分子结构特点:电子态、对称性、谐振频率和总能量。
2.
When these isomers are designed, the germanium atoms could be in three-fold, four-fold or five-fold.
用分子图形软件设计出多种锗原子团簇Ge7的模型,并进行B3LYP密度泛函几何构型优化和振动频率计算,得到8种稳定的同分异构体结构。
3.
We acquired nine P 5 +, P 5 - and P 5 isomers with molecular graphics and then carried out the optimizations with molecular mechanics, PM3 semi empirical and ADF density functional calculations.
使用分子图形学方法设计出 9种可能的同分异构体 ,对其中性及正负离子分子进行了分子力学、PM3半经验量子化学和 ADF密度泛函优化。
补充资料：顺-反式异构体(cistrans isomer),1,2,4异构体
分子式：
CAS号：
性质：又称顺-反式异构体(cistrans isomer),1,2,4异构体或1,2,6异构体(1,2,4 isomer；1,2,6 isomer)。八面体配位化合物中，六个配体分别为3个A(如图中Cl:A1，A2，A3)和3个B(如图中Py：B1，B2，B3)（图暂缺）。当三个相同的配体中的两个(如A1与A3或B1与B3)互为反式，第三个(如A2或B2)与这两个A1与A3或B1与B3)均为顺式，这样的排布的异构体即为经式异构体。
CAS号：
性质：又称顺-反式异构体(cistrans isomer),1,2,4异构体或1,2,6异构体(1,2,4 isomer；1,2,6 isomer)。八面体配位化合物中，六个配体分别为3个A(如图中Cl:A1，A2，A3)和3个B(如图中Py：B1，B2，B3)（图暂缺）。当三个相同的配体中的两个(如A1与A3或B1与B3)互为反式，第三个(如A2或B2)与这两个A1与A3或B1与B3)均为顺式，这样的排布的异构体即为经式异构体。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条