نتایج جستجو برای: 2 pyridone
تعداد نتایج: 2525421 فیلتر نتایج به سال:
The stacking mechanism of the 1H-4H proton transfer in 4-pyridone, 4-pyridinthione and p-aminopyridineare constructed. For quantitative description of this process by means of the quamtumchemicalmethod density functional theory (DFT) the activation energy (
The title compound, C(11)H(11)BrN(4)O(3), features an ethane fragment substituted with an almost planar (r.m.s. deviation = 0.019 Å) imidazo[4,5-b]pyridone ring system and an envelope-shaped oxazolidine unit on separate C atoms. The N-CH(2)-CH(2)-N torsion angle is 52.5 (4)°. In the crystal, pairs of mol-ecules are linked by N-H⋯O hydrogen bonds into centrosymmetric dimers.
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید