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. 21436-03-3, C6H14N2. A document type is Article, introducing its new discovery., Computed Properties of C6H14N2
Molecular self-assembly and optical activity of chiral thionooxalamic acid esters
Three chiral bisthionooxalamides were synthesized by acylation with ethyl or (1R)-menthyl chloroxoacetate of the corresponding diamines and subsequent thionation with Lawesson’s reagent. Single crystal X-ray diffraction analysis revealed that products 4b-7b self-assemble in the solid state by the ring [N-H…O{double bond, long}C, R22 (10)] or chain [N-H…S{double bond, long}C, C(4)] hydrogen-bond motifs. Only in the case of 4b was a helical superstructure formed. In racemic compound 6b, the molecules are connected via N-H…S{double bond, long}C hydrogen bonds into homochiral chains, similar to those formed in 7b. The solid state CD spectra of chiral bisthionooxalamides are characterized by strong Cotton effects in the region of the thioamide n-pi* transition. Their sign is determined by the helicity of the S{double bond, long}C-C{double bond, long}O unit.
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Reference£º
Chiral Catalysts,
Chiral catalysts – SlideShare