نتایج جستجو برای: 2 diaminium trifluoroacetate tmbsedtfa2
تعداد نتایج: 2525471 فیلتر نتایج به سال:
The use of molten salts as novel green solvents which may replace conventional media in chemical processes implies a good knowledge of their micro scopic structure [1]. As known, high temperature NMR spectroscopy has been applied successfully to molten salts. This technique permits to obtain information about the structure and dynamics of the local environment of most of the nuclei in salt mel...
The reaction of cadmium nitrate dihydrate, propane-1,2-diamine and pyridine-2,6-dicarb-oxy-lic acid in a 1:1:2 molar ratio in an aqueous solution resulted in the formation of the title compound, (C(3)H(12)N(2))[Cd(C(7)H(3)NO(4))(2)]·2H(2)O or (p-1,2-daH(2))-[Cd(pydc)(2)]·2H(2)O (where p-1,2-da is propane-1,2-diamine and pydcH(2) is pyridine-2,6-dicarb-oxy-lic acid). The Cd(II) ion is coordinate...
The asymmetric unit of the title proton-transfer compound, C(5)H(16)N(2) (2+)·2C(7)H(4)NO(4) (-)·H(2)O, consists of two mono-deproton-ated pyridine-2,6-dicarb-oxy-lic acid mol-ecules as anions, viz. (py-2,6-dcH)(-), one diprotonated N(1),N(1)-dimethyl-propane-1,2-diamine mol-ecule as a cation, viz. (dmpdaH(2))(2+), and one water mol-ecule. The crystal packing shows extensive O-H⋯O, N-H⋯O, N-H⋯N...
Flowers of Cassia fistula L. were collected from Lahore, Pakistan and extracted in methanol followed by separation n-hexane soluble compounds a separating funnel. The separated phase was analyzed GC-MS for identification various possible phytochemicals. Among the 31 identified compounds, predominant compound this fraction butanoic acid, methyl ester with 17.81% peak area 3-eicosene, (E)- (6.83%...
Detailed studies have been conducted to determine the activity of palladium catalysts for the amination of five-membered heterocyclic halides and to determine the factors that control the scope of this reaction. Palladium-catalyzed aminations of the electron-rich furanyl, thiophenyl, and indolyl halides and of the related 2-halogenated thiazoles, benzimidazole, and benzoxazole have been shown t...
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