螯合环

与含脂肪羧酸配体的配合物相比，含有芳香羧酸配体的配合物热稳定性更高一些，这是后者结构中存在稳定的簇状结构和螯合环导致的。

Compared with the complexes contained aliphatic acids , the complexes contained aromatic acids exhibit higher stability because of the steady cluster structures and chelate ring . 3 .

这可能由于它们分子中内螯合环的生成以及金属镝空间饱和性的增大，使得这些化合物在空气中均较它们的母体CT2DyOCOC6H5稳定。

All the compounds are more stable in air than their parent compound , CP_2DyOCOC_6H_5 . This Possibly due to the increase in sterical saturation and the Presence of internal chelation .

研究表明，棓酰类多元酚可与铝形成络合物，其络合物是铝和棓酰基中苯三酚的邻位二羟基形成的，它是稳定的五员螯合环结构；

It is show that the complexes of galloyl type hydrolysable tannins with aluminum are formed which involve five-member ring stably formed adjacent hydroxyl groups in galloyl to aluminum atoms .

FA/O螯合剂是一种具有13个螯合环的新型螯合剂，不含钠离子，并且易溶于水，稳定性好。

FA / O , a new kind of chelating agent was studied in RCA cleaning solutions , which has 13 chelating rings and is free of sodium , stable and easily soluble .

螯合剂β-环糊精等褐变抑制剂对鲜切马铃薯褐变的抑制效果进行了研究。通过褐变度与多酚氧化酶活性相关分析和比较确定了不同抗褐变剂实际效果。

The relative effectiveness of these anti-browning agents for inhibition of enzymic browning in sliced potatoes was determined in terms of colour and enzyme activity measurements .

强相互作用吸附的半胱氨酸主要是以去质子的两性离子和阴离子形式存在于粘土矿物上，与过渡金属形成螯合的六元环结构。

The cysteine in the clay mineral existed in the forms of zwitterion and anion , the O and S in it chelated zinc cation to form configuration of hexatomic ring .