查询词典 bipyramid

The final refinement converged to R=0.0686 and 0.0688. In the two complexes, the metal atom is coordinated with one nitrogen atom of alkylamine and three sp^2 nitrogen atoms from NTB and one oxygen atom from H~2O to form a distorted trigonal-bipyramid configuration.

配合物中的金属原子与配体NTB分子中的一个烷胺氮原子、三个sp^2氮原子和一个水分子中的氧形成五配位的扭曲三角双锥构型。

A trigonal bipyramid has three equatorial and two axial positions.

一个三角双锥体有三个赤道位和两个轴向位。

Both endo-cyclic and exo-cyclic tin atoms are five-coordinated and have coordination geometry of distorted trigonal bipyramid.

内环锡和外环锡原子均为五配位的畸变三角双锥构型。

Combining the template and sol-gel method, the bipyramid crystal TiO2 photocatalysis material was synthesized using cotton template.

本文采用模板法与溶胶－凝胶法结合，以脱脂棉为模板制备出了TiO2中空微管光催化材料。

The tin atoms are five-coordinated with geometry of distorted trigonal bipyramid.

两个锡原子为五配位的三角双锥构型。

The exo-cyclic tin atoms are five-coordinate and have coordination geometry of monocapped trigonal bipyramid with very similarly distorted mode.

有关该类化合物的晶体结构研究表明，中心锡原子的配位形式决定于直接与锡原子相连的烃基的结构和羧酸基配体的类型[8～ 10 ] 。

The cluster reconstructs from tetragonal bipyramid to edge-cappedtrigonal bipyramid.

吸附后的〓从原来的正方形底双金字塔结构，重构而变成了边覆盖三角形底双金字塔结构。

In the 2A1 distorted trigonal bipyramid structure ,the single non equivalent Ga atom has the population of 4s 4p ,while the two equivalent Ga atoms have the population of 4s 4p .this compares with a Ga population of 4s 4p in the undistorted D3h structure ,hence the jahn-teller distortion causes depletion of the charge density on the 4s orbital of the non-equivalent Ga atom, and enhancement of charge density on the 4s orbital for the two equivalent atoms .an opposite trend is observed for the 4p orbitals of these Ga atoms .the P population for the two equivalent atoms is 3s 3p .the populations of the other 2B1 state with the edge-capped tetrahedral structure are similar with the exception that all three Ga atoms have similar but not identical populations .

在2A1被变形的三角bipyramid结构，唯一非等效Ga原子有4s 4p的人口，而二个等效Ga原子在未变形的D3h结构有4s 4p 。this的人口和4s相比4p的Ga人口，因此jahn出纳畸变在non-equivalent Ga原子的4s轨道导致电荷密度的取尽，并且电荷密度的改进在4s轨道为二个等效原子。an在趋向对面对这些Ga原子4p轨道被观察。the人口为二个等效原子是另一个2B1状态3s 3p 。the人口与边缘加盖的四面体结构是相似的P 除之外全部三个Ga原子有相似，但不相同人口。

There exists isomorphous replacement in the rutile structure, and the most prominent feature is the average content of oxides, being 1.22%, 0.39%, 0.35% and 0.22% for V 2O 5, Fe 2O 3, ZnO and CuO respectively. They substitute Ti 4+ in octahedra. The valence of V is 5, and its polyhedron is trigonal bipyramid, which causes the lattice distortion, breaks the raw octahedron symmetry into square bipyramid, and produces the microstrains in the structure.

天然含钒金红石平均含V2O5可达1.22％，Fe2O30.39％，ZnO0.35％，CuO0.22％，这些金属离子可替代八面体中Ti^4 。V以5价形式存在，配位多面体呈三方双锥，其在晶格内部对Ti的替代导致晶格畸变，打破了配位多面体原有的八面体对称而呈四方双锥的几何形态，并产生结构微应力。

Nearly-degenerate A1 and B1(C2y) electronic states are found with distorted trigonal bipyramid and edge-capped tetrahedral geometries together with a E'(D3h) state for Ga3P2.while a distorted structure with 2B1 symmetry and a 2a2 undistorted D3h structure are found to be nearly-degenerate for Ga2P3 .we employ the complete active space multi-configuration self-consistent field followed by multi-reference singles + doubles configuration interaction computations that included up to 2.5 million configurations.

近退化A1和B1 (C2y)电子状态找到与被变形的三角bipyramid，并且边缘加盖的四面体geometries与一个E' (D3h)状态一起为Ga3P2.while一个被变形的结构与2B1对称和2a 2未变形的D3h结构被发现近退化的为Ga2P3 。we使用自洽场被多参考跟随选拔+双配置互作用的完全活跃空间多配置计算包括2.5百万种配置。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。