Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

<?query For your information: You can cite this article before you receive notification of the page numbers by using the following format: (authors), Dalton Trans., 2008, DOI: 10.1039/b810016k.?>Sensitised near-infrared emission from lanthanides using an iridium complex as a ligand in heteronuclear Ir 2 Ln arrays

The iridium( iii ) complex Ir(ppy) 2 (phen5f) (ppy = 2-phenylpyridinato-N,C 2′ , and phen5f = 4,4,5,5,5-pentafluoro-1-(1′,10′-phenanthrolin-2′-yl)-pentane-1,3-dionate) has been synthesised and used as “complex ligands” to make heteronuclear d–f complexes by the attachment of Ln(NO 3 ) 3 · x H 2 O at the vacant coordination sites in the bridging ligand phen5f. The microanalyses and crystal structure characteristics confirmed the formation of the heteronuclear Ir 2 Ln arrays. The measurement of the lowest triplet state energy level of Ir(ppy) 2 (phen5f) indicates that it is suitable for the NIR (near-infrared) lanthanide ions, Nd III , Yb III and Er III . Upon irradiation of the MLCT (metal-to-ligand charge transfer) absorption of Ir(ppy) 2 (phen5f) at an excitation wavelength from 380–490 nm, the characteristic emission spectra of the three Ir 2 Ln arrays (Ln = Nd, Yb, Er) in both the solid state and in CH 3 CN solution were measured. According to the results, more Ir III complexes will be designed for lanthanide NIR emission by the proper combination between the cyclometalated ligand and the tetradentate ancillary ligand. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Dalton Transactions Royal Society of Chemistry

<?query For your information: You can cite this article before you receive notification of the page numbers by using the following format: (authors), Dalton Trans., 2008, DOI: 10.1039/b810016k.?>Sensitised near-infrared emission from lanthanides using an iridium complex as a ligand in heteronuclear Ir 2 Ln arrays

Download PDF
7 pages

Loading next page...
 
/lp/royal-society-of-chemistry/query-for-your-information-you-can-cite-this-article-before-you-B50GLhuyS0

References

References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.

Publisher
Royal Society of Chemistry
Copyright
This journal is © The Royal Society of Chemistry
ISSN
1477-9226
eISSN
1477-9234
DOI
10.1039/b810016k
Publisher site
See Article on Publisher Site

Abstract

The iridium( iii ) complex Ir(ppy) 2 (phen5f) (ppy = 2-phenylpyridinato-N,C 2′ , and phen5f = 4,4,5,5,5-pentafluoro-1-(1′,10′-phenanthrolin-2′-yl)-pentane-1,3-dionate) has been synthesised and used as “complex ligands” to make heteronuclear d–f complexes by the attachment of Ln(NO 3 ) 3 · x H 2 O at the vacant coordination sites in the bridging ligand phen5f. The microanalyses and crystal structure characteristics confirmed the formation of the heteronuclear Ir 2 Ln arrays. The measurement of the lowest triplet state energy level of Ir(ppy) 2 (phen5f) indicates that it is suitable for the NIR (near-infrared) lanthanide ions, Nd III , Yb III and Er III . Upon irradiation of the MLCT (metal-to-ligand charge transfer) absorption of Ir(ppy) 2 (phen5f) at an excitation wavelength from 380–490 nm, the characteristic emission spectra of the three Ir 2 Ln arrays (Ln = Nd, Yb, Er) in both the solid state and in CH 3 CN solution were measured. According to the results, more Ir III complexes will be designed for lanthanide NIR emission by the proper combination between the cyclometalated ligand and the tetradentate ancillary ligand.

Journal

Dalton Transactions – Royal Society of Chemistry

Published: Sep 9, 2008

There are no references for this article.