Trans-influence of a coordinating nitrosyl group: preparation and structure of cis-trihalogeno(8-quinolinolato or its derivative)nitrosylruthenate(1−)

Add time:08/31/2019    Source:sciencedirect.com

Hydrous nitrosylruthenium(III) halide reacts with 8-quinolinol or its derivative (2-methyl- or 5-chloro-8-quinolinol) in ethyl alcohol or acetonitrile to give [RuX3(N-O)(NO)]− [X = Cl or Br; H(N-O) = 8-quinolinol or its derivative]. All the halide ions are coordinated cis to the nitrosyl and the 8-quinolinolato oxygen trans to the nitrosyl, as found from an X-ray crystallographic study. The structure of the complex anion reflects a strong π-acceptor ability of the nitrosyl. The compounds obtained were also examined by 13C NMR and negative-SIMS (secondary-ion mass spectrometry).

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