A new synthetic route to the preparation of a series of strong photoreducing agents: fac Tris-ortho-metalated complexes of iridium(III) with substituted 2-phenylpyridines

Journal Article · Wed Apr 17 00:00:00 EDT 1991 · Inorganic Chemistry; (United States)

OSTI ID:5405045

Zhang, Y; Baer, C D; Camaioni-Neto, C; O'Brien, P; Sweigart, D A ^[1]

---

1. Brown Univ., Providence, RI (USA)

A new procedure is reported for the high-yield synthesis of fac-tris-ortho-metalated complexes of Ir(III) with 2-phenylpyridine (Hppy) and with substituted 2-phenylpyridine (R-Hppy) ligands. The reported procedure uses the Ir(III) starting material Ir(acac){sub 3} (acac = 2,4-pentanedionate) and typically produces the fac-tris-ortho-metalated complexes in yields of 40-75%. Each of the complexes formed with substituted phenylpyridines exhibited a luminescence lifetime of approximately 2-5 microseconds in nitrogen-saturated acetonitrile at room temperature, and each complex is characterized by a reversible oxidative wave in cyclic voltammetry in acetonitrile. 42 refs., 1 fig., 1 tab.

• DOE Contract Number: FG03-88ER13842
• OSTI ID: 5405045
• Journal Information: Inorganic Chemistry; (United States), Vol. 30:8; ISSN 0020-1669
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
IRIDIUM COMPLEXES
CHEMICAL PREPARATION
PYRIDINES
EXPERIMENTAL DATA
LUMINESCENCE
PHOTOCHEMISTRY
REDOX REACTIONS
AZINES
CHEMICAL REACTIONS
CHEMISTRY
COMPLEXES
DATA
HETEROCYCLIC COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties
400500 - Photochemistry