原子键

Therefore, the energy of π(superscript *) orbit decreases, the probability of optical absorption increases, the n→π(superscript *) electronic transition enhances, and the absorption band broadens and shows red-shift. The above phenomenon will result in the degradation of optical properties of ZnO/silicone white paint under proton exposure.

同时Si-O-Si链内氧原子未成键的孤对电子与邻近硅原子的3d空轨道配位，降低了π轨道的能量，提高了对光吸收的几率，增强了n→π电子跃迁，使吸收带红移，从而导致ZnO/silicone白漆光学性能退化。

Using the combination of energies of the molecular Force Field and atom-bond Electronegalitivity equalization method, the expression of alkane molecular energy has been proposed.

将分子力场中的能量项加入到原子－键电负性均衡方法的能量表达式中，获得了计算烷烃分子能量的方法。

"Fermi:Italian-born american physicist. He won a 1938 Nobel Prize for his work on artificial radioactivity caused by neutron bombardment . In 1942 he produced the first controlled nuclear chain reaction, in a squash court at the University of Chicago."

"费密：意大利裔的美国物理学家，因研究中子人工引发原子衰变而获1938年诺贝尔奖，1942年他在芝加哥大学拥挤的球场上第一次实现了受控键式核反应。"

Especially to atomic structure, chemical bond theory and molecular structure, coordinate chemical compound ,etc.

重点对原子结构、化学键理论与分子结构、配位化合物等进行图片或动画素材的制作。

The changes of Mo-Mo bond order and atomic charges with n increasing are discussed.

讨论了随n增加，配体S， S~2， S~4对Mo-Mo键序、原子电荷的影响及其变化规律。

The regularities of the substitution effects of the electron-pushing group and the electron- withdrawing group on the electronic structures and the related properties of the complexes, e.g. the energies and the compositions of some frontier molecular orbitals, the spectroscopy properties, the atomic net charge populations on main ligands, the coordination-bond lengths and the coordination-bond angles of the complexes, etc. have been investigated.

探讨供电子基团和拉电子基团在主配体上的取代对配合物的电子结构及相关性质，如配合物前沿分子轨道的能量、组成、光谱性质、原子的净电荷布居及配位键长键角等的影响规律。

Organic molecules in the double bond or triple bond was broken, added of other atoms or groups of reaction is called addition reaction ...

有机物分子中的双键或叁键发生断裂，加进其它原子或原子团的反应叫加成反应。。。。

The Raman spectra of the deposited species did not exhibit thespectral feature of buckminsterfullerene, but the hexagonal graphite and the amorphouscarbon in 〓 hybridization instead. The deposited species were desorbed and mass analyzed.

7经质量选择后的直链碳原子簇沉积在HOPG单晶面后改变了其本身的构型，主要以纯碳簇的形成存在，另外也发现相当一部分碳聚集而成芳香环，由于环状构型存在较多悬挂键，氢原子起到了饱和悬挂键的作用。

However, if some of the hydrogen atoms are absent and the usual single bond between carbon atoms has been replaced by a double bond, then it is unsaturated.

但是，如果一些氢原子也没有和通常的单键碳原子之间已取代双键，那麼它就是不饱和。

The results showed that C 2H 6 can be adsorbed on the surface terminal oxygen of Lewis base site P=O bonds through H atom in -CH 3 to form a molecular adsorption state, and the adsorption intensity of C 2H 6 increases with the rising of adsorption temperature.

结果表明，乙烷能够以 CH3 中的H原子吸附于催化剂表面P =O键的端氧上形成分子吸附态，并且随着吸附温度的升高，对乙烷的吸附强度逐渐增大；乙烯则主要是以C =C双键吸附在催化剂的Lewis酸位Fe3 +上。

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。