Kumar, Amit and Srivastava, Ritu and Kamalasanan, Modeeparampil N. and Singh, Ishwar (2012) Synthesis of new iridium complexes with substituted 1,3,4-oxadiazole and beta-diketones as ligands for OLED application. Indian Journal of Chemistry : A, 51 (7). 937-942. ISSN 0376-4710

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Abstract

New iridium(M) complexes, viz., (OctOXD)(2)Ir(tta) and (OctOXD)(2)Ir(tmd) [OctOXD = 2-(4-butyloxyphenyl)-5-phenyl-[1,3,4]oxadiazolato-N4,C2, tta = 4,4,4-trifluoro-1-(2-thienyl)-1,3-butanedione, tmd = 2,2,6,6-tetramethylheptane-3,5-dione] have been synthesized and characterized. These complexes have two cyclometalated ligands ((CN)-N-boolean AND) and a bidentate diketone ligand [((CN)-N-boolean AND)(2)Ir(X)], where X is a beta-diketone with trifloromethyl, theonyl or t-butyl groups) and show good thermal stability in air up to 400 degrees C. The photoluminescence spectra of the two complexes show peak emissions at 537 and 557 nm, respectively. The electroluminescent properties of these complexes have been studied by fabricating multilayer devices. The electroluminescence spectra also show peak emission at 541 and 564 nm for (OctOXD)(2)Ir(tta) and (OctOXD)(2)Ir(tmd), respectively.

Item Type:	Article
Additional Information:	copyright for this article belongs to M/s CSIR-NISCAIR
Subjects:	Chemistry
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	19 Aug 2026 10:48
Last Modified:	19 Aug 2026 10:48
URI:	https://npl.csircentral.net/id/eprint/3379

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