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January 2018 issue
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Cover illustration: 1,2,3-Selenadiazoles are useful precursors for strained cycloalkynes and heterocycles, and are precursors for photochemically induced as well as for strain-accelerated click-reactions. Sixteen molecules, i.e. four sets of four independent molecules, of dibenzo[2,3:6,7]thiepino[4,5-d][1,2,3]selenadiazole fill the unit cell (Z' = 4). The four independent tetracyclic molecules have very similar molecular structures, each adopting a saddle shape. In the crystal, layers of molecules with hydrogen surfaces extend parallel to the ab plane and are stacked along the c axis. See: Schollmeyer & Detert [IUCrData (2017). 3, x180070].
inorganic compounds
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