配位

The oxygen atoms of the carboxylate group were coordinated with the rare-earth ion in bridging bidentate mode.

推测出羧基中的氧原子以桥式双齿的形式与稀土离子配位。

Raman spectra show more than one coordination modes for the carboxylate groups in the complexes.

喇曼光谱说明这类配合物中羧基同时存在多种配位方式。

It is concluded that carboxylate oxygen and chromium were bonding with coordinated bond.

发现酰胺Ⅰ带的吸收峰发生位移，从1657.78cm移动至1646.02cm，且峰形发生变化。结论蛋白质肽链上的羰基氧与铬形成配位键。

Each Cu ion is located at a crystallographic center of symmetry being coordinated by two N and two O atoms in a distorted square-planar geometry.

每个铜原子位于晶体中心，与两个N原子和两个O原子进行配位，形成了扭曲的平面结构。

The X-ray crystal structure reveals that thiourea coordinates with Pd via S atom,and the complex as a whole was in complete symmetry with palladium atom at the symmetry center of the plane square structure.

硫脲是有效反萃剂，从萃合物的晶体结构看出，硫脲通过S原子与Pd配位，萃合物以Pd原子为中心构成平面正方型结构。

One of the important factors to form chelate is there should be enough atoms to coordinate with metal ion.

而要形成螯合物其中有一个因素非常重要，就是金属离子周围必须有足够的原子与它产生配位。

A new type of separation and purification method for isolating puerarin was developed using chelate complex chromatography.

中文内容：摘要：建立了采用配位色谱柱从葛根素浸膏中分离纯化葛根素的方法。

In comparison with a common silica gel column, the chelate complex chromatographic column was more convenient and efficient.

配位色谱改变了葛根素在传统硅胶柱上的洗脱顺序，对目标物质的分辨率比传统硅胶色谱柱高。

The optimum conditions were evaluated basing on the chelation rate and yield of amino acid chelates.

正交试验表明，螯合的最佳工艺为：反应体系pH为11，微波功率为342W，螯合时间为6min，氨基酸与硫酸铜配位比为2：1。

The spinel LiMn2O4 is synthesized by the citrous acid method. The X-ray diffraction pattern of LiMn2O4 show that the product is a spinel phase with a=0.824nm cubic unit cell.

论文首先采用柠檬酸配位法制备尖晶石型LiMn2O4，X射线衍射证实了产物的结构，晶胞参数a=0.824nm。

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。