Complexes containing phosphorus lignads—161: New phosphinite,phosphonite and phosphite derivatives of ruthenium,osmium and iridium |
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| Authors: | Clifford J Creswell Stephen D Robinson Arvind Sahajpal |
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| Institution: | Department of Chemistry, King''s College, Strand, London WC2R 2LS, England |
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| Abstract: | The complexes MHCl(CO)(PPh3)3] (M = Ru or Os) readily undergo substitution at the site trans to the hydride ligand to afford phosphinite-, phosphonite-, or phosphite-containing products MHCI(CO)(PPh3)2L] L = P(OR)Ph2, P(OR)2Ph or P(OR)3 respectively; R = Me or Et]. The ruthenium complexes alone undergo further substitution to afford complex cations RuH(CO)(PPh3)nL4?n]+ n = 2, L = P(OMe)3; n = 1, L = P(OR)3; n = 0, L = P(OR)2Ph or P(OR)Ph2] which were isolated and characterised as their tetraphenylborate salts. Synthesis of the cationic complexes IrHL5]BPh4]2 L = P(OR)3, R = Me or Et] is also reported. Stereochemical assignments based on NMR data are given, and second order 31P and high field 1H NMR patterns are analysed. |
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| Keywords: | Author to whom correspondence should be addressed |
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