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The influence of element of cobalt on Jahn-Teller of LiMn2O4 was discussed in the viewpoint of structural chemistry.

从结构化学的角度探讨了添加的钴元素对纯相LiMn2O4的Jahn-Teller效应的影响。

The reasons of the capacity attenuation have primarily to accompany with the Li~+ ion embedding material on discharge process the effect of Jahn-Teller of the occurrence, the deliquescence of the cathode manganese in the material and the decomposition of the electrolyte.

在锂离子电池众多的正极材料中，尖晶石型LiMn_2O_4化合物，由于其原材料资源丰富，价格低，环境污染小，合成工艺简单，成为最有希望取代LiCoO_2的材料，但LiMn_2O_4存在容量衰减大，循环寿命短等问题，阻碍了其商品化应用；容量衰减的原因主要有在放电过程中伴随着Li~+离子嵌入发生的Jahn-Teller效应，正极材(来源：AacBCbd论4b文网www.abclunwen.com)料中的锰的溶解和电解液的分解。

The completely diagonalized Hamiltonian matrices of 3d2/3d8 ion configuration in the trigonal symmetry have been established by irreducible representation method. Taken into account the influence of the spin-spin coupling interactions omitted in previous publications, the spectra and the constants of crystal structure and zero-field splitting parameters of CsNiCl3 crystal and CsNiCl3: Mg2+ crystal are calculated and the influence of the doping to the spectra, the constants of crystal structure, zero-field splitting parameters and Jahn-Teller effect are studied. The results show that doping can change the structure of crystal which brings about the changes in the spectra and zero-field splitting parameters as well as Jahn-Teller effect.

应用不可约张量理论构造了三角对称晶场中3d2/3d8态离子的45阶可完全对角化的微扰哈密顿矩阵，在考虑了以前工作中被忽略的自旋-自旋耦合作用的基础上计算了CsNiCl3晶体和CsNiCl3：Mg2+晶体的基态能级、晶体结构、零场分裂参量和Jahn-Teller效应，研究了掺入Mg2+对CsNiCl3晶体的光谱、零场分裂参量及Jahn-Teller效应的影响和自旋单重态对基态能级的贡献，发现掺杂使得晶体结构产生畸变，从而改变晶体光谱的精细结构和零场分裂参量，不改变Jahn-Teller效应的分裂规律但改变分裂的大小。

The completely diagonalized Hamiltonian matrixes of order 120 of 3d3/3d7 ions configuration in the trigonal symmetry have been established by irreducible representation method and group theory,taking into account spin-orbit interaction and spin-spin interaction.The ground-state energy levels,the zero-splitting parameter and Jahn-Teller effect of ruby crystal were calculated with the matrixes.

应用不可约张量方法和群的理论构造了三角对称晶场中考虑自旋-轨道相互作用，自旋-自旋相互作用的3d3/3d7离子的可完全对角化的120阶微扰哈密顿矩阵，利用该矩阵计算了红宝石晶体的基态能级、零场分裂参量和Jahn-Teller效应，研究了自旋-轨道的自旋二重态对基态能级的贡献，证明其二重态对基态能级的贡献是不可忽略的，理论计算值与实验值相符合。

We can obtain more information about the crystal field of [MnO6] octahedron using this technique, and get a deepper understanding about the Jahn-Teller effect in this material.

穆斯堡尔谱是研究材料超精细结构的有效的手段，利用穆斯堡尔谱可以得到更多关于[MnO6]八面体的晶体场信息，进而更深入地研究它的Jahn-Teller畸变。

It was particularly observed that, with increasing fraction of Q〓 mode Jahn-Teller distortion and decreasing of that of Q〓 mode in the CO state, the magnetic structure evolves from CE-type to C-type, orbital ordering from 3d〓/3d〓 to 3d〓, and crystal structure from tetragonally compressed to tetragonally elongated orthorhombic.

特别是，我们发现〓在电荷有序态下随着Ca〓离子掺杂量从x=0.5增大到x=0.75，合作Jahn-Teller晶格畸变的畸变模式从Q〓模式逐渐转变到Q〓模式，这种晶格畸变模式的转变直接导致了电荷有序态下的磁结构从CE-型转变到C-型，轨道序从3d〓/3d〓转变到3d〓，晶体结构从压缩的正交对称性转变到拉伸的正交对称性。

It looks kind of like a Juergen Teller photo shoot, doesn't it?

有点像 Juergen Teller 的摄影，不是吗？

Based on the analysis of the Jahn-Teller effect, vibronic interaction and the resolution of group representations, the possible geometrical configurations of 〓 have been derived for the first time. The Gaussian-98 program has been used to optimize the geometrical configurations of 〓 based on B3LYP/6-311G method. It is found that there are at least six different stable geometrical configurations for 〓 The results show that the multiplicity of 2S＋1=7 for cluster 〓 is the most stable state among the eight geometry configurations.

基于多体项展式理论方法，研究得到了〓、HZrCo和〓三原子分子的分析势能函数，这些分析势能函数正确反映了它们的结构特点，可用于研究HZrCo、〓和〓的微观分子反应动力学。3从群的分解与直积理论出发，通过Jahn-Teller变形，vibronic相互作用以及群表示的分解的分析，首次导出了Jahn-Teller效应引起D〓和〓构型〓分子几何构型变化及其可能的电子状态。

After two days of presentations by scientists and philosophers speculating on how the mind construes, and misconstrues, reality, we were hearing from the pros: James Randi, Johnny Thompson, Mac King and Teller — magicians who had intuitively mastered some of the lessons being learned in the laboratory about the limits of cognition and attention.

各路科学家和哲学家在两天时间里做了大量有关大脑如何破解和曲解现实世界的演讲。我们听到了诸多正面的意见：比如神奇的 James Randi ，伟大的 Johnny Thompson ， Mac King 和 Teller—这些魔术师都已经凭直觉把握了人们在实验室里得知的有关认知和注意力方面的局限性。

Substitution of octahedral Mn by these metal ions leads to the decrease of Mn〓 content in the spinels, and thus the decrease in Mn〓 dissolution and Jahn-Teller effect.

金属离子的掺杂一方面减少了Mn〓含量，减少了Mn〓的溶解，同时抑制了Jahn-Teller效应的发生。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。