1)hyperconjugation[,haip?k?nd?u'ɡei??n]超共轭
1.The blue shift of the X-H bond is caused by decrease of the intramolecular hyperconjugation,positive repolarization and positive rehybridization of the X-H bond,and the bent configuration of the bifurcated dihydrogen bond;the red shift of the B-H bond are caused mainly by negative replorization and negative rehybridization of the B-H bond.运用量子化学从头算方法研究了NH_3BH_3与含大的分子内超共轭的质子给体CHF_3、H_2CO、HCOOH、HCOCl和HNO形成的双接触弯曲双氢键B-H_2…H-X(X=C,N)的分子结构、电子密度拓扑性质与频率位移特征。
英文短句/例句
1.isovalent hyperconjugation【物化】等价超共轭
2.The Influence of Double-porphyrin Hyperconjugation on Luminescent Spectrum双卟啉的超共轭效应对其光谱行为的影响
3.Conjugate Gradient Methods for Super-resolution Image Reconstruction Problems;超解像度图像重构问题的共轭梯度法
4.conjugated molecule and unconjugated molecule共轭分子和非共轭分子
5.Supercritical Fluid Extraction of Conjugated Linoleic Acid from Corn Germ Oil超临界法制备玉米共轭亚油酸的工艺研究
6.The Application of Supercritical CO_2 in the Synthesis of Conjugated Linoleic Acid with Enzymic Method超临界CO_2在酶法合成共轭亚油酸中的应用
7.Synthesis and Properties of Hyperbranched Azo Polyesters and Conjugated Polymer Containing 1, 3, 4-oxadiazole Unit;偶氮超支化聚酯和1，3，4-噁二唑共轭聚合物的合成及性能研究
8.Synthesis and Characterization of Partial-Conjugated Hyperbranched and Liner Light-Emitting Polymers;部分共轭型超支化及线性发光聚合物的合成与性能研究
9.Syntheses, Structural Characterization Luminescent Properties of Supramolecular Complexes Generated from New Type of Conjugated Fulvene Ligand;刚性共轭富烯配体及其超分子聚集体的合成、结构和性质的研究
10.Investigation of Coherent Vibrational Process of Two Typical Organic Conjugated Polymer by Ultrafast Spectroscopy两种典型有机共轭聚合物相干振动过程的超快光谱研究
11.Construction of Functionalized Nano-supramolecular Assemblies by Cyclodextrins and Their Conjugates环糊精及其共轭体的纳米超分子体系的构筑及功能研究
12.A partition that is its own conjugate is ealled self-conjugate.一个分析如与其自身共轭，称为自共轭。
13.Componentwise Complementary Cycles and Complementary Cycles in Multipartite Tournaments;多部竞赛图中的分量共轭圈与共轭圈
14.Conjugated Estrin and Medroxyprogesterone Acetate共轭雌激素安宫黄体酮
15.conjugate lines in a conic二次曲线的共轭直线
16.conjugate diameters of a conic二次曲线的共轭直径
17.electrical discharge conjugate revolution machining电火花共轭回转加工
18.antithetic conjugate Riedel shears里德尔对偶共轭剪切
相关短句/例句
σhyperconjugationσ-超共轭
3)hyperconjugation effect超共轭效应
4)Hyperconjugation[,haip?k?nd?u'ɡei??n]超共轭效应
1.In this paper,the stability of propene is briefly described with hyperconjugation;the activity of α H in propene is explained with inductive effect and conjugative effect:the different elctronegativity between C sp2 and C sp3 ,and the stability of active intermediate——allyl free redical.通过诱导效应和共轭效应及超共轭效应对丙烯及烯丙基自由基稳定性的分析 ,从理论上解释了丙烯的稳定性及其α-H的活泼性 。
5)isovalent hyperconjugation等价超共轭
6)Slmple Discussion on Hyperconjugation Effect浅谈超共轭效应
延伸阅读
超共轭效应分子式：CAS号：性质：C-H键和C-C双键直接相连时,σ键与π键发生的共轭，又名σ,π-共轭(σ,π-conjugation)。由此产生的电子效应，称为超共轭效应。它表现在组成C—H键的σ电子向碳碳双键转移(即离域，用弯箭头表示)。参加超共轭的C—Hσ键越多，超共轭效应越强。
