intramolecular hydrogen bond
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美
分子内氢键
双语例句
- The Effect of Intramolecular Hydrogen Bond on Reactivity of 6,7-Hydroxyl Groups to Acetylation in ent-Kaurene Diterpenoids
对映-贝壳杉烯二萜分子内氢键对6,7位羟基化学反应性影响研究 - There the intramolecular hydrogen bond is formed, which have importance to the bioactivity.
配合物中有分子内氢键形成，这些均影响着配合物的生物活性。 - It was found that ( I) Hydroxyls of HYP at position 1,2 could form intramolecular hydrogen bond ( IHB) through crossing a barrier of about 20kJ/ mol and rotating around C-0 bond, and the hydrogen bond energy was estimated to be approximately 10kJ/ mol.
发现：1.HYP1,2位OH可越过20kJ/mol左右的势垒，绕C&O键旋转而形成分子内氢键，并估算出键能约为10kJ/mol； - Decide for Intramolecular Hydrogen Bond to the Preferential Conformation
内氢键对分子优势构象的决定作用 - The IC of Chl a in alcohol solvents are very fast irrespective the exciting wavelength. It is attributed to the intramolecular hydrogen bond;
当叶绿素分子溶解于醇类溶剂中，无论采用何种波长光激发叶绿素分子，其内转换时间都非常的快，原因在于叶绿素分子可以和醇类溶剂形成氢键，分子间的氢键导致内转换速率的增加； - Michael Addition Reaction of Thiophenol with Intramolecular Hydrogen Bond in Aqueous Medium
含分子内氢键的苯硫酚在水相中的Michael加成反应 - The destruction of intramolecular hydrogen bond, hemiacetal formation and their kinetics for fluoro-containing β-diketone compounds in protonic solution have been studied by absorption and 'H NMR spectroscopy.
本工作利用吸收光谱及核磁共振氢谱的方法对两种含&CF3基的β-二酮类化合物在质子溶剂中引起分子内氢键的破坏，缩醛化的发生及其动力学等进行了研究。 - Benflumetol contains an intramolecular hydrogen bond between the aliphatic nitrogen and oxygen atoms, no intermolecular hydrogen bond was found, which is different from the known amino alcohol antimalarials.
本芴醇单晶结构中存在分子内氢键，而未发现分子间氢键，这与以往认为产生抗疟作用的氨基醇类化合物存在分子间氢键而无分子内氢键不同。 - The results show that the title compound is stable; The cis configuration has intramolecular hydrogen bond while trans configuration dose not.
结果表明标题化合物稳定，顺式构型分子内有氢键，反式则没有。 - Effects of intramolecular hydrogen bond on~ ( 13) c chemical shifts of aromatic rings
内氢键对芳环~（13）C化学位移的影响 - Different intramolecular hydrogen bond interactions can also significantly change the components of several molecular orbits near HOMO orbital of the asparagine conformers, resulting in a pronounced difference in their vertical ionization energy values.
分子内氢键还可以显著改变天冬酰胺HOMO轨道附近的几个轨道的成分，因而造成不同构型垂直电离能数值有显著差异。 - The hemicellulose and cellulose degradated effectively, lignin degraded slightly, and the intramolecular hydrogen bond destroyed, the structure changed significantly.
通过分析认为水稻秸秆中半纤维素和纤维素得到有效降解，木质素轻微降解，同时水稻秸秆结构中的分子内氢键被破坏，水稻结构发生明显改变。 - The reason of starch can not be thermoplastic processing is that lots of intermolecular and intramolecular hydrogen bond in starch macromolecules make the movement of molecular chain being restrain by the strong interaction force.
淀粉分子之间存在大量的分子间和分子内氢键，强大的作用力约束了分子链的运动，使得淀粉没有热塑性，不能直接进行热塑性加工。 - The influence of conjugation system, substitute types on UV absorption ability, and the effect of non-planarity structure, intramolecular hydrogen bond on fluorescence intensity have been discussed by analysis UV absorption and fluorescence emission data.
通过分析紫外吸收和荧光发射数据，探讨了分子共轭体系、取代基类型对紫外吸收能力的影响，分子非平面结构、分子内氢键对荧光发射强度的影响。