نتایج جستجو برای: 2 diaminium trifluoroacetate tmbsedtfa2
تعداد نتایج: 2525471 فیلتر نتایج به سال:
We report here the synthesis of [Cu2(TFA)4(tBu2S)2] (1), [Ag4(TFA)4(tBu2S)4] (2) and [AuCl(tBu2S)] (3) (TFA=trifluoroacetate), which decompose in solution medium at ultra-low temperature (e. g., boiling toluene) to afford phase-pure highly crystalline Cu9S5, Ag2S metallic Au nanoparticles, respectively. The low decomposition these precursors is attributed facile mechanism di-tertiary-butyl sulf...
A transition-metal-free direct oxidative trifluoromethylation of unsymmetrical biaryls has been achieved by the simple combination of trifluoromethanesulfinate and phenyliodine bis(trifluoroacetate). The trifluoromethylation is selectively observed in the electron-rich arenes.
Reaction of a variety of 1,7-enynes with bis(pinacolato) diboron catalysed by Pd bis(trifluoroacetate) affords homoallylic and allylic boronates containing a six membered carbo- or heterocycle, by formation of C-C and C-B bonds.
The asymmetric unit of the title salt, C(6)H(20)N(4) (2+)·2I(-), comprises half a 3,6-diaza-octane-1,8-diaminium dication plus an I(-) anion. The dications are symmetrical and lie across crystallographic centres of inversion. In the crystal, the ions form a network involving mainly weak N-H⋯I inter-molecular inter-actions: two H atoms of the ammonium group form inter-actions with two I(-) anion...
A new simple and efficient method for the synthesis of 2-phenylnaphthalenes from electron-rich 1-styryl-2-methoxybenzenes has been described. The reaction proceeds via TFA catalyzed C-C bond cleavage followed by intermolecular [4+2]-Diels-Alder cycloaddition of an in situ formed styrenyl trifluoroacetate intermediate. The quantum chemical calculations identified the transition state for the cyc...
Diisopropylammonium trifluoroacetate ({[Pr2NH2][CF3COO]}; dip tfa; 1) and diisopropylammonium pentafluoropropionate ({[Pr2NH2][C2F5COO]}; dip pfp; 2) have been synthesized and structurally characterized by X-ray diffraction and spectroscopic methods. Both compounds form hydrogen-bonded cyclic dimers (Etter symbol: R4(12)) in the solid state. The asymmetric unit of 1 contains one trifluoroacetat...
As the most electronegative element, fluorine has a strong influence on material properties such as absorption behaviour or chemical and thermal stability. Fluorine can be easily integrated into coordination polymers (CPs) via fluorinated acetate, here trifluoroacetate in Ba(CF3COO)2, directly metal bond (BaF(CH3COO)). In present study both possibilities of integration were tested their effect ...
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