Computed Properties of C6H6BrNIn 2022 ,《Anion-Directed Regulation of Structures and Luminescence of Heterometallic Clusters》 appeared in Angewandte Chemie, International Edition. The author of the article were Li, Jiao-Jiao; Liu, Chun-Yu; Guan, Zong-Jie; Lei, Zhen; Wang, Quan-Ming. The article conveys some information:
Anions have been used to regulate the structures and luminescence of heterometallic clusters. Introducing ClO4- into orange-emissive, butterfly-like [(C)(Au-PPhpy2)6Ag4](BF4)6 (1, PPhpy2 = bis(2-pyridyl)phenylphosphine) leads to the formation of red-emissive [(C)(Au-PPhpy2)6Ag5(ClO4)3](ClO4)4 (2) with a novel trigonal bipyramidal structure; employing PhCO2- gives yellow-emissive, hexagram-like [(C)(Au-PPhpy2)6Ag6(PhCO2)3](BF4)5 (3). Notably, 1 exhibits weak luminescence in CH2Cl2/CH3OH = 1 : 1 (v : v) with a quantum yield (QY) of 0.05, whereas it was dramatically increased to 0.49 and 0.83 for 2 and 3, resp. Theor. calculation confirms that the involvement of anions in the electronic structures is responsible for the shifts of emission. The high QYs of 2 and 3 are attributed to the protection provided by ligands and anions. This work demonstrates that anions may serve as an extra designable factor beyond just counterions for functional metal clusters. In the experiment, the researchers used many compounds, for example, 2-Bromo-5-methylpyridine(cas: 3510-66-5Computed Properties of C6H6BrN)
2-Bromo-5-methylpyridine(cas: 3510-66-5) belongs to pyridine. Pyridine and pyridine-derived structures are privileged pharmacophores in medicinal chemistry and an essential functionality for organic chemists. As the prototypical π-deficient heterocycle, pyridine illustrates distinctive chemistry as both substrate and reagent. Computed Properties of C6H6BrN