回复: 因为碳原子的负电性(electronegativity)不够。 只有F, O, N,三个原子的负电性够大, 所以在他们上面的氢就可以形成氢键 回复: 先看分子中碳原子的杂化状态。
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... electronegative 阴电性的,负电性的 electronegativity 阴电性,负电性 electronemission 电子发射 ...
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Pauling electronegativity scale 鲍林电负性标度
equilibrium electronegativity 平衡电负性
group electronegativity 基团电负性
electronegativity difference 阴电性差 ; 电负度差
electronegativity scale 提出电负度 ; 阴电性标
Allen electronegativity Allen电负性
molecular electronegativity interaction vector 分子电性作用矢量 ; 应用分子电性作用矢量
electronegativity rule 电负度法则
The concept of electronegativity equalization under the framework of density functional theory provides a promising method to tackle this problem.
密度泛函理论下的电负性均衡原理能够很好处理该类问题。
参考来源 - 原子—键电负性均衡方法中σπ模型的理论研究及应用Because the electronegativity of Sb is higher than that of Nb, it can strengthen the covalency of the system, improve the piezoelectric performances, and thus the amount of Sb is fixed at a high value in this thesis (6mol %).
Sb的电负性比Nb的强,可以增强铌酸钾钠体系的共价性,提高其压电性能。
参考来源 - 碱金属铌钽锑酸盐无铅压电陶瓷的制备和性能表征·2,447,543篇论文数据,部分数据来源于NoteExpress
同义词: negativity
以上来源于: WordNet
N the state of being electronegative 电负性
The affection on the enthalpies of formation aroused by factors, such as size factor, electronegativity, the energy of orbit of selectron etc, is also discussed.
还讨论了尺寸因子,电负性,选择子的轨道能量等因素对形成焓的影响。
And so, this is a schematic of the electronegativity scale.
因此,这是电负性大小的示意图。
Cesium versus gold is the same delta electronegativity difference.
铯和金,具有相同的电负性差。
And I look up and see that 55 the electronegativity of carbon is 2.55 2 we already know, is 2.20.
我查了一下电负性,碳是2。,2。
if we think about electronegativity as a periodic trend we can just draw our nice periodic table here, and let's separate it into quadrants.
如果我们来思考一下电负性的周期性规律,我们可以把我们漂亮的周期表画在这,然后把它分成四个象限。
He introduced the concept of electronegativity which was a measure, therefore, it is quantitative, of the atom's ability to attract electrons within a covalent bond and developed a scale of electronegativity.
他引入了电负性这一概念,一个反映着原子在成共价键时吸引电子的能力的数据标度,因此这是数量上的,在共价电子中,电子原子能吸引电子,并发展为一定规模的电负性。
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