Electric Literature of 1436-59-5, 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. 1436-59-5, C6H14N2. A document type is Article, introducing its new discovery.
Crystal structure of a hybrid salt-cocrystal and its resolution by preferential crystallization: ((¡À)trans-N,N?- dibenzyldiaminocyclohexane)(2,3-dichlorophenylacetic acid)4
trans-N,N?-Dibenzyldiaminocyclohexane (B) crystallizes with 2,3-dichlorophenylacetic acid (AH); the crystal structure, resolved by using crystal X-ray diffraction, revealed an odd stoichiometry composed of H 2B2+, two A- and two AH forming an unexpected hybrid salt-cocrystal. As this compound is a stable conglomerate (i.e. every single crystal contains the enantiomerically pure cation H2B 2+, RR or SS), several preferential crystallization attempts (AS3PC) were performed in methanol and in THF and gave unexpected final enantiomeric excesses greater than 20% for the entrainment in methanol. These results suggest that the crystal growth mechanism preferentially involves building units composed of [H2B2+; 2A- and 2AH] or reconstruction of some crystal interfaces rather than a layer by layer construction.
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Reference£º
Chiral Catalysts,
Chiral catalysts – SlideShare