Application of 14187-32-7. Let¡¯s face it, organic chemistry can seem difficult to learn. Especially from a beginner¡¯s point of view. Like 14187-32-7, Name is Dibenzo-18-crown-6. In a document type is Conference Paper, introducing its new discovery.
Synthesis, crystal structure and NMR of [Na(DB18C6)(CH3CN)] 3[alpha-PW12O40]
A novel super-molecular complex [Na(DB18C6)(CH3CN)]3 [alpha-PW12O40] was obtained by solvothermal reaction and characterized by IR, X-ray, 1H, 13C and 31P NMR. The result reveals that the complex consists of an [alpha-PW 12O40]3- anion with alpha-Keggin structure and three complex [Na(DB18C6)(CH3OH)]+ cations in which every sodium ion located in the cavity of dibenzo-18-crown-6 with six Na-O bonds and coordinated with one of the terminal O atom of [alpha-PW 12O40]3- and the N atom of CH3CN from two sides of the distorted DB18C6 plane, respectively. The three terminal O atoms linked with sodium ion are from a single W3O3 triplet of the alpha-Keggin tungstophosphate anion. The 13C resonance (119.27 ppm) bonded to N atom in CH3CN has been clarified by gUMBC spectrum (see Fig. 1), which is too weak to be observed in 13C NMR spectrum due to its too low relaxation rate.
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Reference£º
Chiral Catalysts,
Chiral catalysts – SlideShare