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Cyclometallated iridium(III) complexes with dicyanamide or tricyanomethanide
- Source :
-
Inorganic Chemistry Communications . Aug2009, Vol. 12 Issue 8, p758-760. 3p. - Publication Year :
- 2009
-
Abstract
- Abstract: Reaction of cyclometallated iridium(III) complex Ir(ppy)2(PPh3)Cl (2, ppy=2-phenylpyridine) with dicyanamide or tricyanomethanide gave neutral mononuclear complexes Ir(ppy)2(PPh3)N(CN)2 (3a) or Ir(ppy)2(PPh3)C(CN)3 (3b), and dicyanamide/tricyanomethanide-linked binuclear iridium(III) complexes [{Ir(ppy)2(PPh3)}2N(CN)2]+ (4a) or [{Ir(ppy)2(PPh3)}2C(CN)3]+ (4b). Substitution of coordinated chloride in the precursor 2 with dicyanamide or tricyanomethanide improved significantly the luminescence properties of 3a–4b. Compared with that in the precursor 2 (1.6%), 2.2 to 9.3-fold enhancement of emission quantum yields was detected in 3a–4b. [Copyright &y& Elsevier]
- Subjects :
- *METAL complexes
*IRIDIUM
*CALCIUM cyanamide
*METHANE
*CHLORIDES
*LUMINESCENCE
Subjects
Details
- Language :
- English
- ISSN :
- 13877003
- Volume :
- 12
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Inorganic Chemistry Communications
- Publication Type :
- Academic Journal
- Accession number :
- 43529396
- Full Text :
- https://doi.org/10.1016/j.inoche.2009.06.008