ISSN:
0749-1581
Keywords:
13C NMR
;
2-D exchange
;
NOESY
;
Restricted rotation
;
Pd(II) π-allyl complex
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Variable-temperature studies in addition to 2D exchange and NOE measurements on the chiral allyl complex [Pd(η3-Ph2C—CH—CHPh){(-)-sparteine}] [PF6] have revealed that there is restricted rotation about the ipso-C—allyl-C bonds for the three Ph groups of the η3-Ph2C—CH—CHPh ligand, with that for the anti Ph group having a much higher activation energy. Possible consequences for the reaction chemistry of 1,1-diphenylallyl complexes due to the close proximity of this anti Ph to the chiral bidentate nitrogen ligand are discussed. Detailed 13C and 1H assignments, based on NOESY, TOCSY and C,H correlation measurements, are given.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1260320508
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