steric effect
立体效应：指由于空间位阻而导致的化学反应速率或分子结构的改变。
常用释义
英式发音
美式发音
基本释义
- 立体效应：指由于空间位阻而导致的化学反应速率或分子结构的改变。
例句
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1·Some influences of steric effect, reaction temperature and solvent effects were discussed.并简单讨论了立体效应，反应温度和溶剂效应对此还原反应的影响。
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2·Due to the steric effect, there may be different toxicity mechanisms between long-chain and short-chain aliphatic alcohols.由于空间位阻效应，长链脂肪醇与短链脂肪醇可能存在不同的毒性作用机理。
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3·From structure of organic compounds, this paper analyses and discusses impact of acids basing activity of organic molecules about electronic effect, hybrid method and steric effect.主要从有机化合物的结构出发，分析和判断了电子效应、杂化方式及空间效应等因素对有机分子酸碱性的影响。
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4·The reinforced concrete has an obvious steric effect in real earthquakes. There is a complicated coupling between the axis force and compound bending which change in side columns and angle posts.在实际地震作用下钢筋混凝土结构的反应常常呈现明显的空间效应：框架边柱或角柱中变化的轴力和双向弯曲存在复杂的耦合作用。
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5·The steric structure is the main effect on the herbicidal activity as results.研究结果表明，影响其药效的主要因素是空间结构。
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6·The dependence of chain scission and racemization on temperature results from molecular motion, "cage effect" and steric hindrance during recombination.分子量降低和消旋作用对温度的依赖性，是由于分子运动和笼罩效应以及重合的空间位阻效应所致。
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7·The dispersing ability of SSHE as cement dispersant also came from steric hindrance effect and long side chain contributed to steric hindrance in a certain degree.淀粉丁二酸单酯用作水泥分散剂时，其分散机理也主要来自空间位阻作用，且较长的极性侧链对空间位阻效应具有一定的贡献。
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8·The ligand mixing reaction, the nonintegral metal- ligand ratio in compound compositions, the even-odd effect and related phenomena are analysed in the light of the steric packing of the ligands.从配体空间堆积效应分析了配体混合重排反应、金属—配体非整数比化学组成、奇偶效应等现象。
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9·At the same time, we have also investigated the influence of the electric effect and steric hindrance effect of the substituents to the yields and regioselectivity.同时，我们还研究了取代基团的电子效应和位阻效应对反应产率和区域选择性的影响。
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10·The steric and electronic configuration around the center metals has profound effect on the polymerization activity and the stereo - and regio-selectivity of the resulting polymers.中心金属离子周围的电子效应和空间效应影响着催化剂的反应性能和所得聚合物的微观结构。
同义词