查询词典 ligand

Soil conditioning agent; utilization of black liquor; modified lignin; aluminum toxicity; ligand; sulfonated lignin; alkaline -oxygen treated lignin; gel filtration chromatography; muconic structure.

农业科技，农业基础科学，土壤学土壤改良剂；黑液利用；改性木素；磺化木素；氧碱处理木素；铝毒；螯合剂；凝胶过滤色谱；己二烯二酸结构

The broken line in the formula represents a coordinate bond between a multidentate ligand and the metal.

在式中的虚线表示在多齿配体和金属之间的配位键。

Trimerization ligand could be devide into two kinds in structure:aromatic- and multidentate heteroatomic-ligands.

乙烯三聚配体在结构上可分为：芳香型配体和多齿杂原子配体。

The multidentate amine modified silica gel is good catalytic ligand of ATRA reaction.

且此种多齿胺改性硅胶配体是ATRA反应很好的配体。

Considering the functions of metal-organic frameworks and the synthesis conditions, we designed and synthesized six metal-organic frameworks based on rare earths by choosing multidentate organic carboxylate ligand, H3CTC, and using mild solvent vapor conditions.

在丰富金属金属有机骨架材料合成化学和结构化学的同时，为该材料的定向合成和性质开发积累了有价值的实验事实。

Experimental results showed that the CuL complex had five-membered and six-membered rings containing two M—O,and one M—N bonds and that the ligand was of a multidentate one.

对其结构进行元素分析、摩尔电导率、紫外吸收光谱、红外吸收光谱、荧光光谱及电化学表征，结果表明，配合物同时含有2个M─O和1个M─N键形成的五元环和六元环，HL为多齿配体。

Although multidentate heteroatomic could catalyse high selectivity of α-olefin such as 1-hexene and 1-octene,these ligand usually use expensive co-catalyst such as MAO,so it hardly has broad application in α-olefin field.

但由于多齿杂原子配体一般需由价格相对昂贵的烷基铝氧烷，特别是MAO的活化才可进行高效催化反应，因此长期以来多齿型配体难以得到广泛应用。

Considering the functions of metal-organic frameworks and the synthesis conditions, we designed and synthesized six metal-organic frameworks based on rare earths by choosing multidentate organic carboxylate ligand, H3CTC, and using mild solvent vapor conditions.

在第二章中，我们利用半刚性的多齿有机羧酸配体——1，3，5-环己三酸与稀土金属元素合成了七个三维具有开放骨架结构的金属有机骨架晶体材料，由于稀土元素在光学和磁学方面的特殊性能，所获得的金属有机骨架材料不仅具有较好的吸附和储存性质，而且拥有金属中心赋予的独特的光学和磁学性能。

Using pyridine-2, 6-dicarboxylic acid as starting material, a novel ligand N2,N6-bis(3-methyl- pyridine-2-yl)-pyridine-2, 6-dicarboxamide was synthesized,which contained multidentate and large conjugative system.

摘 要：以吡啶-2， 6-二甲酸为原料，合成含有多个共轭体系多齿配体N2，N6-二(3-甲基吡啶)-2-取代吡啶-2， 6-二甲酰胺；同时制备它与稀土离子Tb和Eu的配合物，并培养出单晶。

ATRP initiation systems consist of organic chloride initiators (RCl, RBr or aryl sulfonyl chloride, etc.), transition-metal catalysts in lower oxidation state Cu(I, Fe, Ru, Ni, etc. and organic electronic-donating ligands (2,2'-bipyridine―bipy or bpy, PPh3, multidentate ligand compound 1,1,4,7,7-pentamethyldiethylenetriamine, etc.).

普通ATRP引发体系包括引发剂主要为氯或溴化物，芳基磺酰氯；低价过渡金属卤化物如Cu， Fe，Ru，Ni等；有机配体如2，2'-联吡啶，PPh3，脂肪族多元胺等。

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。