Enhancement of quantum yield and lifetime of photoinduced chargeseparation for cyclometallated platinum(II) complex/ferricyanide system via Nafion membrane-solution interface

Enhancement of quantum yield and lifetime of photoinduced chargeseparation for cyclometallated... The photoinduced electron transfer from the excited state of cyclometallated platinum(II) complex PtL1L2 2+ (L1=4-methoxyphenyl-6-phenyl-2,2′-bibyridine, L2=pyridine) incorporated into Nafion membranes to Fe(CN)6 3− in the surrounding solution has been examined. N,N′-tetramethylene-2,2′-bipyridinium (DQ2+) entrapped in the Nafion membranes is used as an electron relay. Luminescence quenching studies indicate that the quenching reaction of the excited PtL1L2 2+ with DQ2+ is static in nature. PtL1L2 3+ generated from the luminescence quenching remains in the Nafion matrix, while DQ+ migrates by an electron hopping mechanism to the Nafion-water interface, where transfers an electron to Fe(CN)6 3− to produce Fe(CN)6 4−. The negatively charged Fe(CN)6 4− is repelled into the bulk solution by the anionic Nafion surface. The isolation of the photoinduced oxidized species PtL1L2 3+ in Nafion from the ultimate reduced species Fe(CN)6 4− in solution prevents them from undergoing back electron transfer. Thus, an extremely long-lived charge separation state is achieved in a high quantum yield. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Enhancement of quantum yield and lifetime of photoinduced chargeseparation for cyclometallated platinum(II) complex/ferricyanide system via Nafion membrane-solution interface

Loading next page...
 
/lp/springer_journal/enhancement-of-quantum-yield-and-lifetime-of-photoinduced-LDOXTr89O9
Publisher
Springer Netherlands
Copyright
Copyright © 2000 by Springer
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/156856700X00714
Publisher site
See Article on Publisher Site

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches

$49/month

Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.

$588

$360/year

billed annually
Start Free Trial

14-day Free Trial