Multinuclear NMR data (13C, 31P, 103Rh, 13C{103Rh}, 13C{31P}, and 31P{103Rh}) for [Rh6(CO)12{P(OPh)3}4], [Rh6(CO)10(dppm)3], and (NBu4)[Rh6(CO)15X] (X = I, CN, or SCN) are presented. The use of 13C{103Rh} double resonance has allowed the 13CO NMR spectra of [Rh6(CO)15I]-and [Rh6(CO)12{P(OPh)3}4] to be reassigned. The structures of the clusters in solution have been unambiguously determined. In all cases, the solid-state structure (as determined by X-ray crystallography) is maintained in solution. No evidence for CO exchange on the NMR time scale was found for any of the clusters studied at temperatures below 25 °C. 103Rh NMR data for [Rh6(CO)15X]-(X = I, CN, SCN) are compared with those for [Rh6(CO)16] and [Rh6(CO)15H]-. Data for the phosphine-substituted derivatives of [Rh6CO)16] are compared with those for the ligand-substituted [Rh4(CO)12] derivatives. © 1989, American Chemical Society. All rights reserved.
Allevi C., Bordoni S., Clavering C.P., Heaton B.T., Iggo J.A., Seregni C., et al. (1989). Multinuclear Magnetic Resonance Studies on Substituted Rhodium Carbonyl Clusters. ORGANOMETALLICS, 8(2), 385-390 [10.1021/om00104a017].
Multinuclear Magnetic Resonance Studies on Substituted Rhodium Carbonyl Clusters
Bordoni S.;
1989
Abstract
Multinuclear NMR data (13C, 31P, 103Rh, 13C{103Rh}, 13C{31P}, and 31P{103Rh}) for [Rh6(CO)12{P(OPh)3}4], [Rh6(CO)10(dppm)3], and (NBu4)[Rh6(CO)15X] (X = I, CN, or SCN) are presented. The use of 13C{103Rh} double resonance has allowed the 13CO NMR spectra of [Rh6(CO)15I]-and [Rh6(CO)12{P(OPh)3}4] to be reassigned. The structures of the clusters in solution have been unambiguously determined. In all cases, the solid-state structure (as determined by X-ray crystallography) is maintained in solution. No evidence for CO exchange on the NMR time scale was found for any of the clusters studied at temperatures below 25 °C. 103Rh NMR data for [Rh6(CO)15X]-(X = I, CN, SCN) are compared with those for [Rh6(CO)16] and [Rh6(CO)15H]-. Data for the phosphine-substituted derivatives of [Rh6CO)16] are compared with those for the ligand-substituted [Rh4(CO)12] derivatives. © 1989, American Chemical Society. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
