Die Röntgenstrukturanalysen von (<i>E</i>)- und (<i>Z</i>)-2-Buten-1,4-diyl-dithiocyanat bei 93 K

The crystal structure of the (<i>E</i>)- and (<i>Z</i>)-2-butene-1,4-diyl dithiocyanate (<b>1</b> and <b>2</b>, respectively) which have been used as substrates for an E’ reaction, has been determined by X-ray analysis. The SCN groups are for both molecules in an anticlinal conformation relative to the double bond. A remarkable intermoecular contact has been observed between the N-atom of one molecule and the S-atom of its neighbour.