原子键

From the optimized interlayer distances atomic net charges, Mulliken overlap populations and orbital electron numbers.

从优化层间距、原子净电荷、Mulliken重叠布居、轨道电子数等角度讨论了A-GIC和AE-GIC的电子结构与成键特性。

The reaction barrier will be lowered by the substituents that delocalize the unpair electron in Pz orbital of the central carbon atom.

当R^1，R^2位置是甲基时，由于碳原子的pz轨道与甲基的一个C—H键轨道间存在强的超共轭效应，从而可以较大程度地降低α-氢转移反应的势垒。

Chemical bonds and structural theory of organic chemistry 6 class hoursKnow the history of organic chemistry; Grasp the basic theory of organicchemistry, such as structural theory, chemical bonds, resonance theory, atomic andmolecular orbital theory, and valence bond theory; understand polar and non-polarcompounds, dipole moment and know how to express the structures of organiccompounds with different molecular formulas.

了解有机化学发展简史；掌握有机化学结构理论、化学键理论、共振理论、原子和分子轨道理论和杂化轨道理论；了解极性和非极性分子并掌握有机化合物结构的表示法。

Such accuracy was essential to our understanding of the surface chemistry, because the results showed that the distance at the surface was 0.08 A longer than a similar bond inside a silver iodide solid.

这样高的精确度对于了解表面的化学性质是很重要的。因为这些结果表明，在表面上碘、银原子的距离要比碘化银固体内部的碘一银键长0.08埃。

In stereoisomerism, substances with the same atoms are bonded in the same ways but differ in their three-dimensional configurations.

第二种类型是立体同分异构体，具有相同原子的物质以相同的键合方式结合，但它们的三维构型不同。

In stereoisomerism, substances with the same atoms are bonded in the same ways but differ in their three-dimensional configuration s.

第二种类型是立体同分异构体，具有相同原子的物质以相同的键合方式结合，但它们的三维构型不同。

In stereoisomerism, substances with the same atom s are bonded in the same ways but differ in their three-dimensional configurations.

第二种类型是立体同分异构体，具有相同原子的物质以相同的键合方式结合，但它们的三维构型不同。

The two banana bonds start out from each carbon at roughly the tetrahedral angle.

这两个香蕉键是从每个碳原子以接近四面体角发出的。

Section F—Chemistry of nonmetals F10 NOBLE GASES Key Notes The elements Noble gases occur as uncombined atoms in the atmosphere, and are uncommon except for argon.

F组化学非金属 F10键惰性气体关键笔记惰性气体的内容发生uncombined大气中的原子，和比较少见的除外氩。

Organozinc reagents can react with a variety of α,β-acetylenic ketones and aldehydes in the absence of any catalyst. The one-pot reaction affords β-branched Baylis-Hillman type adducts, the multifunctionalized alkenes, in excellent yields with high stereoselectivity.

这种顺式亲核加成反应的发生是由于该类有机锌试剂既具有较强的亲核性，又具有Lewis酸的特性，使有机锌中R基团从同位进攻中心碳原子而形成新的碳碳键。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。