过渡络合物

Lithium complexes 1b,1d and Zirconium complexes 1c,1e,lf were prepared using the benzylamine ligand. X-ray crystal structures of these complexes were determined.

合成了一种新型的硅桥联的多齿胺类配体[PhNHSi(NMe_2)NHPh]，在此基础上研究了其对应的碱金属化合物和过渡金属锆的络合物的制备，并进行它们的X-射线晶体结构的分析。

The surroundings of the central ions were simply forecast in accordance with the electronic spectrum and the scale of nonfreedom. copper-amino acid compound, electronic structure, radial scaling theory,spectrum interpretations

通过我们的系列工作找出一定的规律，则对金属酶的活性中心的结构、电子结构具有清晰的认识。2理论介绍配位场理论是研究过渡金属络合物的一种重要的理论方法，在理论研究

What's more, this kind of bonding is more stable than the acid-base complex formed by free protonic acid, particularly the coordinate complex is the most stable which formed by the center of transition metal positive ion.

它比游离态的质子酸形成的酸碱化合物更稳定，特别是以过渡金属阳离子为中心的配位络合物最稳定。

In order to study the aldol condensation of 2.15-hexadecanedione on the surface of aluminium, the intermolecular condensation mechanism of acetone occurring on aluminum was simulated by using semi-empirical AM1 method embodied in MOPAC 6.0 program package. The optimized structures and geometry parameters of 5 transition complexes and 4 intermediates were given.First, 2 molecules of acetone coordinated with aluminum by electrostatic attraction.One atom of hydrogen of acetone migrated to aluminum because of t...

为了研究2，15－十六烷二酮在氧化铝表面的环合机理，选择小分子丙酮为模型化合物，用量子化学半经验AM1方法研究双分子丙酮在氧化铝表面的醛醇缩合机理，给出了反应过程中的5个过渡态和4个中间体的结构和几何参数，该催化反应可以认为是氧化铝分子与两分子丙酮分子发生静电络合作用，然后借助氧原子的负电荷导致脱氢并实现缩合，根据中间体的能量变化，推测有较稳定的铝复合物生成。

Our group first reported a novel dialkylation reaction of alkyl zinc iodides with aromatic aldehydes and an olefination reaction of benzyl zinc bromides with aromatic aldehydes respectively.

我们实验室分别首次报道了在过渡金属络合物催化下带官能团有机卤化锌试剂与芳香醛的双烷化反应和烯基化反应。

Electron paramagnetic resonance spectrum is an effective tool to investigate the optical and magnetic properties of crystals and complexes doped with transition-metal and rare-earth ions.

电子顺磁共振谱是研究掺过渡和稀土金属离子晶体及络合物的微观结构、光学和磁学性质等的有力工具。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。