TRANSITION-METAL COMPLEXES WITH BIDENTATE LIGANDS SPANNING TRANS-POSITIONS .8. REACTIONS OF THE NUCLEOPHILE TRANS-[RUCL(NO)(1)] (1=2,11-BIS(DIPHENYLPHOSPHINOMETHYL)BENZO[C]-PHENANTHRENE) WITH CARBON-MONOXIDE AND THE PHOSPHITE LIGAND (2) (2=1-ETHYL-3,5,8-TRIOXA-4-PHOSPHABICYCLO(2.2.2)OCTANE)

The preparation of the nucleophile trans‐[RuCl(NO)(1)], where 1 is the bidentate ligand Ph2PCH2C18CH2PPh2, and of the five‐coordinate species [RuCl(CO)(NO)(1)], [RuCl(CO)(NO)(Ph2PCH2Ph)2] and [RuCl(NO)(2)(1)] are reported. The crystal structure of [RuCl(CO)(NO)(1)] shows that the coordination around the metal atom is distorted trigonal bipyramidal with the phosphorus atoms in axial positions. The RuNO bond angle is 142.8°. 1H‐ and 31P‐NMR. and documentclass{article}pagestyle{empty}begin{document}$ tilde nu $end{document}NO IR.‐data for the above complexes are reported and related to the coordination geometry. Copyright © 1979 Verlag GmbH & Co. KGaA, Weinheim