109263-49-2Relevant academic research and scientific papers
UEBERGANGSMETALL-CARBIN-KOMPLEXE. LXXXIII. NEUE ANIONISCHE mer-DIHALOGENO-TRICARBONYL-DIALKYLAMINO-CARBIN-KOMPLEXE DES WOLFRAMS
Filippou, Alexander Constantin,Fischer, Ernst Otto,Alt, Helmut Guido
, p. 357 - 366 (2007/10/02)
The reaction of trans-X(CO)4WCNR2 (X = Br, R = chex (cyclohexyl); X = Cl, R = chex, ipr (isopropyl)) with M+X- (M+ = NEt4+, X- = Br-; M+ = PPN+, X- = Cl-) leads under substitution of one CO ligand to new anionic dihalo(tricarbonyl)carbyne-tungsten complexes of the type M+ mer-- (M+ = NEt4+, X = Br, R = chex; M+ = PPN+, X = Cl, R = chex, ipr), whose composition and structure were determined by elemental analysis as well as by IR, 1H and 13C NMR spectroscopy.In the anionic carbyne complexes the entered halogen ligand, coordinated in a cis position relative to the carbyne ligand on the metal, can be easily substituted by neutral nucleophiles, as the reaction of PPN+ mer-chex2>- with PPh3 demonstrates yielding the neutral carbyne complex mer-chex2>.
