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Volumn 27, Issue 18, 2008, Pages 4580-4588

Multinuclear NMR, X-ray, and DFT studies on RhCl(diene)(phosphoramidite) complexes

Author keywords

[No Author keywords available]

Indexed keywords

DISCRETE FOURIER TRANSFORMS; NUCLEAR MAGNETIC RESONANCE; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; OLEFINS; PROBABILITY DENSITY FUNCTION;

EID: 53849101407     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om800082c     Document Type: Article
Times cited : (9)

References (100)
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    • During the preparation of the manuscript, it was discovered that Mezzetti and co-workers (ETHZ) had also determined the solid-state structure of complex 4: Mikhel, I. S.; Ruegger, R.; Butti, P.; Camponovo, F.; Huber, D.; Mezzetti, A. Organometallics 2008, 27, 2937-2948.
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    • At the request of a reviewer, the mixing time in the NOESY experiment for the COD complex 4 was changed. Three new NOESY experiments with mixing times of 600, 900, and 1200 ms were performed. From both the 600 and 900 ms mixing times, there was no evidence for intramolecular olefin exchange; however for the 1200 ms run we do find very weak cross-peaks due to this exchange. This exchange was confirmed by the magnetization transfer experiments
    • At the request of a reviewer, the mixing time in the NOESY experiment for the COD complex 4 was changed. Three new NOESY experiments with mixing times of 600, 900, and 1200 ms were performed. From both the 600 and 900 ms mixing times, there was no evidence for intramolecular olefin exchange; however for the 1200 ms run we do find very weak cross-peaks due to this exchange. This exchange was confirmed by the magnetization transfer experiments.
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    • The 2-D NOESY spectra for the complexes [RhCl(1,5-COD)-(MOP)] and [RhCl(NBD)(MOP)], MOP = 2-diphenylphosphino-1,1′binaphthyl, reveal the same type of exchange selectivity; that is, we observe di-olefin rotation only in the NBD case.
    • The 2-D NOESY spectra for the complexes [RhCl(1,5-COD)-(MOP)] and [RhCl(NBD)(MOP)], MOP = 2-diphenylphosphino-1,1′binaphthyl, reveal the same type of exchange selectivity; that is, we observe di-olefin rotation only in the NBD case.
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