Awesome and Easy Science Experiments about 14187-32-7

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Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 14187-32-7, C20H24O6. A document type is Article, introducing its new discovery., category: chiral-catalyst

The structural changes during the complexation of benzo-crown ethers wit Cs(+), K(+) and Na(+) were studied by NOESY and variable-temperature 13C NMR spectroscopy.It was found that, on complexation, the distance between the CH-alpha and 1-CH2 is reduced in dibenzo-24-crown-8 (DB24C8), dibenzo-18-crown-6 and benzo-15-crown-5.Two mechanisms have been proposed for the distance reduction, the fluttering motion of the benzo group and the elongation of the crown moiety.However, it is concluded that both of these mechanisms seem to play a role in the distance reduction.In the complexed state of DB24C8 with Cs(+), Cs(+) is predicted to be slightly above the plane of the crown oxygen with respect to DB24C8.

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Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare