Morkan, İzzet AmourUztetik-Morkan, Ayşe2021-06-232021-06-2320000932-0776https://doi.org/10.1515/znb-2000-1208https://hdl.handle.net/20.500.12491/4618Photolysis of hexacarbonyl metal(0) or tetracarbonyl-bis(1,3-butadiene)metal(0) (metal: chromium, molybdenum, tungsten) in the presence of tetracyanoethylene, TCNE, or fumaronitrile , FN, at room temperature yields trans-bis(?2-tetracyano-ethylene)tetracarbonyl-chromium(0) (1), -molybdenum(0) (2), -tungsten(0) (3) and trans-bis(fumaronitrile)tetracarbonyl-chromium(0) (4), -tungsten(0) (5) complexes. The complexes were purified by chromatography and recrystallization and characterized by IR , 1H, 13C NMR and mass spectroscopies. It is shown that two tetracyanoethylene ligands are symmetrically bonded to the M(CO)4 moiety through their carbon-carbon double bond in the form of ?2-TCNE . The two fumaronitrile ligands are bonded to the central atom through their nitrogen atoms. The spectral data are discussed in terms of metal -? ligand ?-interaction.eninfo:eu-repo/semantics/closedAccessCarbonylFumaronitrileTetracyanoethyleneArticle10.1515/znb-2000-12085512115311562-s2.0-0040794294Q3