Journal
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Volume -, Issue 5, Pages 998-1006Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejic.200300551
Keywords
oligomers; phosphorus; phosphaalkenes
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Sterically-encumbered ligands tethered to conjugated segments have been developed and employed in concert with existing bulky ligands to prepare a series of phospha-PPV oligomers. A study of the variation of lambda(pi-pi). values along this series indicates that low-coordinate phosphorus centres can support conjugation across extended systems, and generally confirms the expected red shift across the series from all-carbon oligomers to phosphaalkenes to diphosphenes. These findings provide experimental evidence that low-coordinate phosphorus centres are in fact capable of supporting electronic communication across extended pi conjugated systems. (C) Wiley-VCH Verlag GmbH Co.
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