Journal
PURE AND APPLIED CHEMISTRY
Volume 85, Issue 4, Pages 801-815Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1351/PAC-CON-12-09-13
Keywords
conjugation; fluorescence; main group chemistry; multiple bonds; phosphorus; photochemistry; polycyclic aromatics; synthesis
Categories
Funding
- National Science Foundation [CHE-1150721]
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1150721] Funding Source: National Science Foundation
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Phosphaalkenes (RP=CR2) and diphosphenes (RP=PR) are main group analogues of alkenes (R2C=CR2). Molecules featuring such multiply bonded phosphorus functionalities often display structural features and chemical reactivities that mimic their purely organic counterparts, lending credence to the claim that these compounds are carbon copies. We have been expanding this analogy to include oligomers and polymers with extended conjugation that directly involve P=C and P=P units. Many of these materials, however, display little or no photoluminescence (PL). This article summarizes our efforts to understand P=C and P=P photobehavior and to produce materials having significant PL that mimic or photocopy the PL properties of the phosphorus-free systems. Recent materials based onbenzoxaphospholes (BOPs), benzobisoxaphospholes (BBOPs), and higher analogues having significant fluorescence quantum yields are covered.
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