Let¡¯s face it, organic chemistry can seem difficult to learn, Quality Control of 2-Methoxy-3-methylpyrazine, Especially from a beginner¡¯s point of view. Like 2847-30-5, Name is 2-Methoxy-3-methylpyrazine, molecular formula is C7H8N2O2, belongs to phthalazines compound. In a document, author is Shmelev, Maxim A., introducing its new discovery.
Coordination polymers based on 3,5-di-tert-butylbenzoate {Cd2Eu} moieties
Heterometallic complex [Cd2Eu(bzo)(6)(NO3)(MeCN)(2)(THF)(2)]center dot 2EtOH was synthesized by the reaction of Cd (NO3)(2)4H(2)O and Eu(NO3)(3)6H(2)O with potassium 3,5-di-tert-butylbenzoate (Hbzo). N-Donors (L) could replace solvents in the Cd coordination environment without modifying the stable metal core {Cd2Eu(bzo)(6)(X)} (X = NO3 or bzo). The presence of pyrazine (pz) in the reaction mixture could result in the formation of either molecular [Cd2Eu(bzo)(6)(NO3)(pz)(2)(EtOH)(2)] or 1D-polymeric [Cd2Eu(bzo)(6)(NO3)(pz)(H2O)(2)]ncomplex, depending on the Cd : L molar ratio (1 : 15 and 1 : 8, respectively). Addition of bridging N-donors 4,4′-bipyridine (4,4′-bipy) and 1,2-bis(2-pyridyl)ethylene (bpe) (Cd : L = 1 : 2) gave the [Cd2Eu(bzo)7(4,4′-bipy)(H2O)(2)](n) and [Cd2Eu(bzo)(7)(bpe)(H2O)(2)](n) polymers, respectively. 4-Methyl-2-aminopyridine (ampy) gave only molecular compound [Cd2Eu(bzo)(7)(ampy)(2)(EtOH)(H2O)] (Cd : L = 1 : 3). The structures of all the resulting compounds were studied by single crystal X-ray diffraction analysis. Photoluminescent properties were studied for solid samples of the synthesized compounds. The effect of the N-donor ligand geometry and the Eu center dot center dot center dot Eu distance on the lifetime of the Eu3+ atom’s D-5(0) excited state is discussed.
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