نتایج جستجو برای: 4 bipyridinium
تعداد نتایج: 1303753 فیلتر نتایج به سال:
Using the freon mixture CDF(3)/CDClF(2) as solvent we have been able to measure the (1)H and (15)N NMR spectra of the doubly (15)N labeled 2,2'-bipyridinium cation (BpyH(+)) at temperatures down to 115 K. The obtained NMR parameters strongly depend on the type of counteranions indicating the formation of ion pairs. In the case of the bulky poorly coordinating tetrakis[3,5-bis(trifluoromethyl)ph...
Reported is the synthesis and characterization of guest-free and guest-included frameworks assembled from the anionic metal complex [Fe(ox)3] 3‐ and the cationic diprotonated 4,4′-bipyridinium (H2bpy) or 1,2-bis(4-pyridinium)ethylene 2+ (H2bpye) linkers, where the complex and linkers are bonded by multiple charge-assisted hydrogen bonds. In some of the compounds additional barium cations serve ...
Background and purpose: Paraquat (PQ) is a bipyridinium herbicide that is very soluble in water. This non-selective contact herbicide is widely used in agriculture for weed control. In addition to the environmental impact, paraquat affects the entire body, especially the respiratory system, central nervous system and lymph nodes. In this study degradation of paraquat was investigated using Fent...
Two new Ru(II)Pt(II) dimers, [Ru(bpy)(2)(mu-L2)PtCl(2)](2+) (5) and [Ru(bpy)(2)(mu-L3)PtCl(2)](2+) (6), were synthesized and characterized, and their electrochemical and spectroscopic properties together with their photo-hydrogen-evolving activities were evaluated (bpy = 2,2'-bypridine; L2 = 4'-[1,10]phenanthrolin-5-ylcarbamoyl)-[2,2']bipyridinyl-4-carboxylic acid ethyl ester; L3 = 4'-methyl-[2...
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