期刊
AUSTRALIAN JOURNAL OF CHEMISTRY
卷 66, 期 9, 页码 1065-1073出版社
CSIRO PUBLISHING
DOI: 10.1071/CH13264
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资金
- Australian Research Council
- China Scholarship Council
- National Science Foundation [CHE 0952253]
- UNSW Canberra (ADFA)
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [0952253] Funding Source: National Science Foundation
A convenient synthetic strategy is reported for the series of complexes [Ir(pp)(3)](3+) (where pp phen, Me(2)phen and Me(4)phen) through the intermediacy of the appropriate [Ir(pp)(2)(CF3SO3)(2)](+) species. In the case of [Ir(phen)(3)](3+), the cation was resolved into its enantiomeric forms, for which the absolute configurations were determined by X-ray diffraction. The availability for the first time of the CD spectra allowed comparison with computed CD spectra. Measurement of the antimicrobial activity of the [Ir(pp)(3)](3+) species {and the [Ir(pp)(2)X-2](+) (X=Cl-, CF3SO3-) precursors involved in their synthesis}, as well as cell uptake studies with the four bacterial strains S. aureus, methicillin-resistant S. aureus (MRSA), E. coli, and P. aeruginosa, indicated that they showed little activity compared with their Ru (II) analogues. The results suggest that it is unfavourable for an individual metal centre with a 3+ charge to pass across the bacterial cell membrane.
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