Es wurden Innerchelatmetallkomplexe des PdII, NiII, CuII, CoIII und AgI mit α‐Cyano‐β‐amino‐dithioacrylsäureestern dargestellt. Die Koordination der Dithiocarbonester‐gruppierung und des Aminstickstoffs (S/N‐Koordination) wird durch die chemische Verschiebung der S2p‐ und N1s‐Elektronenbindungsenergien in den ESCA‐Spektren bewiesen.
1H‐NMR Spectroscopical Investigations on Substituted Crotonates
3‐Amino‐2‐cyanocrotonates 2 and ‐dithiocrotonates 3 have been characterized by n.m.r. spectroscopy. The data obtained are compared with those of acrylates 1. The COOR and CSSR groups are investigated with respect to their electron withdrawing effect and formation of intramolecular hydrogen bonds.
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