Journal
JOURNAL OF ORGANOMETALLIC CHEMISTRY
Volume 643, Issue -, Pages 214-222Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0022-328X(01)01272-4
Keywords
eta(1)-pi-bonding; C-13 NMR; nitrile compounds; Ru-arene complexes; phosphine ligands
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The synthesis of new derivatives based on a Ru(Ph2P-arene)(POHPh2) fragment, possessing nitrile, isonitrile and phosphine ligands, are reported. The new nitrile compounds, e.g. [Ru(H2O)(RCN)(2)(Ph2P-eta(1)arene)(POHPh2)](OTf)(2), R = Me, p-tolyl, reveal a new and unexpected weak eta(1) pi-bonding mode from a single CH-biaryl arene carbon to the ruthenium atom. as demonstrated by C-13-NMR. The solid-state structures for two examples are reported. In one complex a new Ru-P-O-C=N-H five-membered ring is formed due to the P-OH oxygen attack on the complexed p-tolyl nitrile. (C) 2002 Elsevier Science B.V. All rights reserved.
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