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Title: Gram Scale Synthesis of Benzophenanthroline and Its Blue Phosphorescent Platinum Complex

Here, the design, synthesis, and characterization of 12-phenylbenzo[f][1,7]phenanthroline, Bzp, is reported. Its use as a fluorine free ligand for sky blue phosphorescence is demonstrated in a cyclometallated platinum complex, BzpPtDpm. BzpPtDpm phosphoresces at the same wavelength as its analogous 4,6-difluorophenylpyridine complex at both room temperature (466 nm) and 77 kelvin (458 nm). Finally, production of a conformationally restricted derivative of BzpPtDpm with greatly increased quantum yield (46%) validates the versatility of the synthetic route.
Authors:
 [1] ;  [2]
  1. Univ. of Southern California, Los Angeles, CA (United States). Dept. of Chemistry
  2. Univ. of Southern California, Los Angeles, CA (United States). Loker Hydrocarbon Research Inst. and Dept. of Chemistry
Publication Date:
Grant/Contract Number:
EE0007077
Type:
Accepted Manuscript
Journal Name:
Organic Letters
Additional Journal Information:
Journal Volume: 18; Journal Issue: 16; Related Information: DOI: 10.1021/acs.orglett.6b01693; Journal ID: ISSN 1523-7060
Publisher:
American Chemical Society
Research Org:
Univ. of Southern California, Los Angeles, CA (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE); Universal Display Corporation, Trenton, NJ (United States)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; OLED; solid state lighting; phosphor; organometallic; orgnanic
OSTI Identifier:
1429082