配体

As nicotinic acid and nicotinamide possess the resemble biology function, it also synthesizes the second type of two kinds new organic chromium of containing nicotinamide,〓 and 〓.

基于烟酸与烟酰胺相似的化学结构与生物学功能，合成了第二类两种含有烟酰胺配体的有机铬配合物，其组成分别为〓和〓。

Since the contribution of the spin-orbital coupling interaction of the ligand to optical and electron paramagnetic resonance spectra can not be neglected, the optical and EPR spectra g factors g‖、g⊥ and hyperfine structure constant A‖、A⊥ of LiHSO4:VO2+ crystal are calculated from the high-order perturbation formulas on the basis of double-spin-orbital coupling model and crystal-field theory for 3d1 ion in tetragonal symmetry.

考虑到配体离子的自旋－轨道耦合作用对光谱和电子顺磁共振谱的贡献不可忽略，采用3d1离子在四角对称下基于双自旋－轨道耦合模型的高阶微扰公式和晶场理论公式，理论计算了LiHSO4：VO2+晶体的光谱和电子顺磁共振参量g因子g‖、g⊥和超精细结构常数A‖、A⊥。

In research process, we found that the different transition metal ions and ligands with different configurations would impact the structure of the product as synthesised.

在探索过程中，我们发现不同的过渡金属，不同几何构型的有机配体，对所得化合物的结构影响巨大。

A A reactionEffective experimental conditions for 1 mmol olefins in the AA reactions employed 3.1 equiv.

配体在对甲基肉桂酸甲醋的AA中立体选择性最高，产物的光学纯度为96%ee。

Employing CuI(5 mol%), N,N-dimethylglycine hydrochloride(10 mol%) and K_2CO_3(2 equiv.) in refluxing THF as the optimized reaction conditions,the four-membered 4-alkylidene-2-azatidinones could be efficiently synthesized.

当以3-溴-3-N-苯基-丁烯酰胺为底物，在5 mol%CuI为催化剂，10 mol%N，N-二甲基甘氨酸盐酸盐为配体，2当量K_2CO_3作碱，THF回流的反应条件下，可以高效的合成2-亚甲基-4-氮杂环丁酮类化合物。

When the reaction was finished, the ligand was extracted with CH2Cl2 and precipitated upon addition of diethyl ether followed by filtration.

2配体2在丙酮/水体系中催化/又种烯烃的AD反应，非链端烯烃的立体选择性(80一99%ee)明显优于链端烯烃(51一62%ee)。

Recently Kuang reported a recoverable and reusable free ligand that could be recovered by precipitation upon addition a little of diethyl ether.

本文所说的小分子并不是通常人们所说的NO、CO和CO_2等小分子，而是相对于大分子而言，这些手性配体是小分子(FW＜1000)。

UV-Fenton system, the coexistence of the process of degradation of organic azo dye ligands impact study.

UV-Fenton体系降解偶氮染料过程中共存有机配体的影响研究。

This is the first example of a ligand-modulated ARR characterized.

这是首例关于非典型应答调控蛋白结合小分子配体的报道。

OBJECTIVE: Our objective was to evaluate the short-term efficacy of the novel multireceptor ligand somatostatin analog pasireotide in patients with de novo, persistent, or recurrent Cushing's disease.

目的：本研究的目的是评价新型多受体配体生长抑素类似物pasireotide治疗新发的、长期的或复发性库欣病患者的短期疗效。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。