Blue‐Light‐Emitting Complexes: Cationic (2‐Phenylpyridinato)iridium(III) Complexes with Strong‐Field Ancillary Ligands

Autor:	Min-Sik Eum, Choongil Kim, Chong Shik Chin, Song yi Kim, Sung Kwon Kang
Rok vydání:	2007
Předmět:	Inorganic Chemistry Ligand field theory Chemistry Ligand Trans effect Cationic polymerization chemistry.chemical_element Iridium Luminescence Photochemistry Medicinal chemistry Blue light Ion
Zdroj:	European Journal of Inorganic Chemistry. 2007:372-375
ISSN:	1099-0682 1434-1948
DOI:	10.1002/ejic.200600920
Popis:	The emission λmax are strikingly shorter (451, 482 nm) for the cationic dicarbonyl complex [Ir(ppy)2(CO)2]+ (2a) than those (473, 495 nm) of the anionic dicyano complex [Ir(ppy)2(CN)2]–, where CO and CN– are both sp carbon coordinating ligands and known to be strong-field ligands showing a high trans effect. Sky-blue-light emission (λmax = 441–443 and 470–471 nm) could be obtained by modifying the ppy ligand to F2Meppy (2,4-difluoro-2-phenyl-m-methylpyridinato anion) to prepare [Ir(F2Meppy)2LL′]+ [LL′ = (CO)2 (2aF2Me), (PPh2Me)2 (2bF2Me)]. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
Databáze:	OpenAIRE
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