The enantioselectivity of N-dodecanoyl-L-proline-3,5-dimethyl-anilide is also good, but the basic line fluctuates strongly due to containing benzene ring in its molecular structure.
虽然用N-十二酰基-L-脯氨酸-3,5-二甲基苯胺作添加剂,手性选择性也较好,但由于含有苯环,紫外吸收增强,基线波动严重。
单词 | Molecular structures |
释义 |
Molecular structures
英语例句库
The enantioselectivity of N-dodecanoyl-L-proline-3,5-dimethyl-anilide is also good, but the basic line fluctuates strongly due to containing benzene ring in its molecular structure. 虽然用N-十二酰基-L-脯氨酸-3,5-二甲基苯胺作添加剂,手性选择性也较好,但由于含有苯环,紫外吸收增强,基线波动严重。 The quantum chemical theoretic and experimental studies on the configuration,state of aggregation and carbocyanine molecular structure domino effect of its properties are introduced in this paper. 本文介绍了碳菁分子构型、聚集态及碳菁分子性质的结构效应的量子化学理论与实验研究情况,综述了国内外学者对碳菁分子的量子化学计算方法的研究进展。 Four compounds of phosphite ester and phosphoramide containing azido groups were synthesized. The molecular structure of the products has been confirmed by IR,1HNMR,FAB-MS and elemental analysis. 首次合成了叠氮亚磷酸酯及叠氮磷酰胺类化合物,并用IR、1HNMR、FAB-MS及元素分析对化合物结构进行了鉴定。
原声例句
TED演讲(视频版)双语精选 Next, we determined their molecular structures, using experiments. 接下来,我们用实验确定了它们的分子结构。 双语版 TED-Ed 演讲精选 The incredible properties of PTFE come from its molecular structure. PTFE不可思议的特质来自于它的分子结构。 健身知识科普 But the molecular structures and similar sounding names are where the resemblances end. 但是相似之处仅仅在分子结构和名字上。 生活大爆炸 第3季 The motion of the wave through the molecular structure. I've been looking at it all wrong. 通过分子结构的波状运动 我之前一直想错了。 Scishow 精选系列 Each kind of plastic has a different molecular structure, which determines the physical properties of the plastic. 每种塑料都有一种不同的分子结构,分子结构决定了塑料的物理性质。 VOA常速英语_科技 A polymer is a substance that has a molecular structure composed of many similarity on its views together. 聚合物是具有分子结构的物质,其分子结构在视图上有很多类似物组合在一起。 VOA慢速英语_科技 The team said the ice includes the necessary elements to create amino acids, which are important molecular structures for life. 研究小组说,冰中含有产生氨基酸的必要元素,而氨基酸是生命的重要分子结构。 Osmosis-内分泌 That's because the molecular structure of exogenous steroid medications is so similar to cortisol that they mimic its actions on various tissues. 这是由于外源性类固醇药物的分子结构与皮质醇过于相似,导致它们在各种组织上模仿皮质醇的功效。 经济学人-科技 Dr Alizadeh, a graduate of the University of Tehran, is currently working at Ottawa University in Canada on the molecular structure of cement. 阿里扎德博士毕业于德黑兰大学,现在加拿大渥太华大学进行水泥分子结构方面 的研究。 奇思妙想科学站 Your bioelectric field would get scrambled, disintegrating your molecular structure. 你的生物电场会变得混乱,瓦解你的分子结构。 当下的力量 As there is more consciousness in the body, its molecular structure actually becomes less dense. 随着体内意识的增加,它的分子结构实际上变得不那么密集了。 经济学人(汇总) Organic matter may also be trapped in ice: on land in areas of permafrost, and at the bottom of the sea in molecular structures called clathrates. 在陆地上的永久冻土地区,在海底被称为笼形化合物的分子结构中。 Scishow 精选系列 Diamonds are hard because of their molecular structure, each carbon atom forms four covalent bonds with the atoms around it, which forms an exceptionally hard crystal structure. 金刚石坚硬是因为其分子结构,每个碳原子与相邻的原子形成四个共价键,从而形成极其坚硬的晶体结构。 Scishow 精选系列 Then the kinda-liquid-kinda-gas can drift out of the solid molecular structure, and be replaced by air, so you have a porous, lightweight material that retains its shape. 然后,这种似液体又似气体的物质可以从坚固的分子结构中漂移出来,被空气所取代,这样你便得到有气孔的还保持原始形状的极轻材料。 透视百科健康类 Also around this time, the molecular structures that hold your cells together break away, so your tissues collapse into a watery mush. 也是在这个时候, 将细胞结合在一起的分子结构会断裂,因此组织会崩塌成水状糊状。 经济学人 Finance and economics Artificial diamonds, which have the same molecular structure as those from the ground, trade at an enormous discount—around 70% by one estimate. 人造钻石与地面钻石具有相同的分子结构,其交易价格大幅折扣——据估计约为 70%。 TED-Ed(视频版) The term " steroids" refers to a broad category of molecules that share a similar molecular structure, but have many different functions. 术语“类固醇”指的是一大类分子,它们具有相似的分子结构,但具有许多不同的功能。 Life Noggin According to a recent press release, scientists have unraveled the molecular structure of risperidone, an often prescribed antipsychotic, docked in its D2 dopamine receptor. 根据最近的一份新闻稿, 科学家们已经阐明了利培酮的分子结构,利培酮是一种经常开处方的抗精神病药, 停靠在其 D2 多巴胺受体中。 TED-Ed(视频版) Caffeine and adenosine have a similar molecular structure, close enough that caffeine can wedge into the adenosine receptors, but not close enough to activate them. 咖啡因和腺苷具有相似的分子结构,足够接近以至于咖啡因可以楔入腺苷受体,但又不足以激活它们。 The Early Sessions The molecular structure indeed is fairly rigid. The inner self is not so bound to such a formal alignment, and is thus free to travel in ways which the body, because of its formal molecular structure, finds impossible. 分子结构确实是相当僵化死板的。内在的自己并不受这种固定的排列方式所束缚,因此可以自由地以身体认为不可能的方式旅行,身体因其形态上的分子结构而不可能自由地旅行。
中文百科
分子结构 Molecular geometry(重定向自Molecular structures)
![]() ![]() ![]() ![]() 分子结构,或称分子立体结构、分子形状、分子几何,创建在光谱学数据之上,用以描述分子中原子的三维排列方式。分子结构在很大程度上影响了化学物质的反应性、极性、相态、颜色、磁性和生物活性。 分子结构最好在接近绝对零度的温度下测定,因为随着温度升高,分子转动也增加。量子力学和半实验的分子模拟计算可以得出分子形状,固态分子的结构也可通过X射线晶体学测定。体积较大的分子通常以多个稳定的构象存在,势能面中这些构象之间的能垒较高。 分子结构涉及原子在空间中的位置,与键结的化学键种类有关,包括键长、键角以及相邻三个键之间的二面角。
英语百科
Molecular geometry 分子结构(重定向自Molecular structures)
![]() ![]() ![]() ![]() Molecular geometry is the three-dimensional arrangement of the atoms that constitute a molecule. It determines several properties of a substance including its reactivity, polarity, phase of matter, color, magnetism, and biological activity. The angles between bonds that an atom forms depend only weakly on the rest of molecule, i.e. they can be understood as approximately local and hence transferable properties. |
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