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The chelate effect increases as the number of chelate rings increases. For example, the complex [Ni(dien) 2)] 2+ is more stable than the complex [Ni(en) 3)] 2+; both complexes are octahedral with six nitrogen atoms around the nickel ion, but dien (diethylenetriamine, 1,4,7-triazaheptane) is a tridentate ligand and en is bidentate. The number of ...
To obtain a highly purified aldehyde product, the Étard complex precipitate is often purified before decomposition in order to prevent reaction with any unreacted reagent. The reaction is normally carried out for a few days to several weeks and the yields are high. [5] [6] The Etard reaction
Increased transcription is a result of decreased chromatin condensation, while decreased transcription results from increased chromatin condensation. [4] Methyl marks on the histones contribute to these changes by serving as sites for recruitment of other proteins that can further modify chromatin.
Class 11 may refer to: British Rail Class 11; DB Class VT 11.5; DR Class E 11; EAR 11 class; Emu Bay Railway 11 class; GCR Class 11B; GCR Class 11E; GCR Class 11F;
Police in New Mexico said a 16-year-old teen killed four members of his family including his mom, dad and siblings over the weekend.
A Florida man accused of a hate crime for killing a gay man is asking a judge to dismiss the charges, saying he acted in self-defense. Gerald Radford testified on Friday that he feared for his own ...
2. Hoppin’ John. Southerners are usually eating Hoppin’ John (a simmery mix of black-eyed peas and rice) on New Year's Day. Like most “vegetable” recipes from around this area, it contains ...