Donor-acceptor complexes of excited states on silica surface and in hexane solution at liquid nitrogen temperature

Donor-acceptor complexes of excited states on silica surface and in hexane solution at liquid... It is shown that an exciplex between pyrene (Py) and N,N-dimethylaniline (DMA) forms at low temperature (77 K) on the nonporous silica surface and in a solid hexane solution. The fluorescence lifetime of pyrene in the adsorption state increases when the quencher concentration grows at 77 K. The exciplex fluorescence spectra in the adsorption state shifts to a blue wavelength range when the temperature decreases as a result of the dipole-dipole interaction of the exciplex with the hydroxy groups of the silica surface. On the basis of the model suggested the hydroxyl group concentration on the dehydrated at 770 K silica surface has been estimated. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Donor-acceptor complexes of excited states on silica surface and in hexane solution at liquid nitrogen temperature

Loading next page...
 
/lp/springer_journal/donor-acceptor-complexes-of-excited-states-on-silica-surface-and-in-Oll9Q2vPu8
Publisher
Springer Netherlands
Copyright
Copyright © 1998 by Springer
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/156856798X00168
Publisher site
See Article on Publisher Site

Abstract

It is shown that an exciplex between pyrene (Py) and N,N-dimethylaniline (DMA) forms at low temperature (77 K) on the nonporous silica surface and in a solid hexane solution. The fluorescence lifetime of pyrene in the adsorption state increases when the quencher concentration grows at 77 K. The exciplex fluorescence spectra in the adsorption state shifts to a blue wavelength range when the temperature decreases as a result of the dipole-dipole interaction of the exciplex with the hydroxy groups of the silica surface. On the basis of the model suggested the hydroxyl group concentration on the dehydrated at 770 K silica surface has been estimated.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Apr 14, 2009

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

DeepDyve Freelancer

DeepDyve Pro

Price
FREE
$49/month

$360/year
Save searches from Google Scholar, PubMed
Create lists to organize your research
Export lists, citations
Read DeepDyve articles
Abstract access only
Unlimited access to over
18 million full-text articles
Print
20 pages/month
PDF Discount
20% off