螯合物形成 的英文怎麼說
中文拼音 [áogěwùxíngchéng]
螯合物形成
英文
chelate formation-
Dithiocarbamate [ s2cnr2 ( dtc ) ] and it ' s derivates were applied in chemistry 、 medical 、 petrochemical and other fields, it can coordinated with all kinds of transition metals, the anion of bidentate ligand also bridges two transition metals
摘要氨荒酸鹽[ s2cnr2 （ dtc ） ]及其衍生物早已廣泛應用於化學、醫學、石油化工等領域，它與所有的過渡金屬都可以進行配位，形成螯合物，雙齒的陰離子也可以作為橋鏈兩個過渡金屬的配體。The gel by sodium alcoholate method, added benzoylacetone, have the obvious uv absorption peaks at 265nm and 337nm respectively. when the gel was placed in air, the chelate did n ' t have change. the absorption peak decreased until disappeared when the films were irradiated by the ultraviolet light with the relevant wavelength, which indicated that the films were obviously photosensitive
（ 4 ）通過三種方法制備感光性的sno _ 2 ： sb （ ato ）溶膠，採用醇鈉法，添加苯酰丙酮制備的二氧化錫凝膠膜，在265nm和337nm處存在明顯吸收峰，空氣中放置，所形成的螯合物不發生變化，用相應波長的紫外光照射時，這個吸收峰會減小直至消失，表明薄膜具有良好的感光性。Both the frequency and intensity of 1146. 0cm - 1 change largely, etc. discussed and compared the mechanism of these interaction in detail we got some conclusions as following : both zn2 + and cd2 + ions can chelate with po2 - and come into being - po2 - me2 + n7 ( purine ) chelate. as to zn2 + ions, when r2. 0, the quantity of po2 - zn2 + n7 is directly linear with r. when r2. 0, zn2 + ions even can chelate with c at n3 - o2 sites and this chelation will disrupt the h - bond between gc base pairs and make the dna structure unstable. as to cd2 + ions, only when r is within 1. 0 - 1. 5 can this chelation take place and the relation of the quantity of this chelate with r is not easy to conclude
通過對這些變化進行詳細討論和分析，我們得到了如下的結論： zn ~ （ 2 + ）和cd ~ （ 2 + ）都可以跟dna的磷酸基團螯合，形成- po _ 2 ~ - … me ~ （ 2 + ） … n7 （ g ）螯合物，但是前者的螯合跟離子濃度有很大的關系，在摩爾濃度比小於2 . 0時，螯合物的生成量跟r成正比關系，而後者的螯合跟離子的關系不是很明顯，只有當r處於1 . 0至1 . 5之間時，螯合作用才能進行，並且螯合物的生成量跟r之間沒有很明顯的關系存在。With the metallic ion iron ion, forms the chelate in particular, causes to change color
與金屬離子尤其是鐵離子，形成螯合物，導致變色分享友人