http://www.cnr.it/ontology/cnr/individuo/prodotto/ID50965
Bimetallic Iridium(III) Complexes consisting of Ir(ppy)2 units (ppy=2-phenyl-pyridine) and two laterally-connected N^N chelates as bridge: Synthesis, separation and photophysical properties (Articolo in rivista)
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- Bimetallic Iridium(III) Complexes consisting of Ir(ppy)2 units (ppy=2-phenyl-pyridine) and two laterally-connected N^N chelates as bridge: Synthesis, separation and photophysical properties (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1021/ic700494e (literal)
- Alternative label
A. Auffrant; A. Barbieri; F. Barigelletti; J. Lacour; P. Mobian; J.-P. Collin; J.-P. Sauvage; B. Ventura (2007)
Bimetallic Iridium(III) Complexes consisting of Ir(ppy)2 units (ppy=2-phenyl-pyridine) and two laterally-connected N^N chelates as bridge: Synthesis, separation and photophysical properties
in Inorganic chemistry
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- A. Auffrant; A. Barbieri; F. Barigelletti; J. Lacour; P. Mobian; J.-P. Collin; J.-P. Sauvage; B. Ventura (literal)
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- Pagina fine
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- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
- In: Inorganic Chemistry, vol. 46 pp. 6911 - 6919. ACS PUBLICATIONS, 2007. (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1. Univ Strasbourg 1, CNRS, Lab Chim Organ Minerale, Inst Le Bel,UMR 7177, Strasbourg, France
2. Inst Sintesi Organica Fotoreattivita, Consiglio Nazl Ric, Bologna 40129, Italy
3. Univ Geneva, Dept Chim Organ, CH-1211 Geneva, Switzerland (literal)
- Titolo
- Bimetallic Iridium(III) Complexes consisting of Ir(ppy)2 units (ppy=2-phenyl-pyridine) and two laterally-connected N^N chelates as bridge: Synthesis, separation and photophysical properties (literal)
- Abstract
- Reaction of the precursor complex Ir2(ppy)4Cl2 (ppy = 2-phenylpyridine) with the bridging ligand 3,8-dipyridyl-4,7-phenanthroline (L) affords, in 94% yield, the cyclometalated iridium dinuclear complex [(ppy)2Ir(-L)Ir(ppy)2]2+ (12+) as a mixture of three stereoisomers. This mixture consists of a meso form , and a racemic form (enantiomeric pair , and ,) in the ratio 1:1.5. Single-crystal X-ray characterization of the perchlorate salt of the meso form reveals (i) the distortion of the bridging ligand from the planarity and (ii) the location of the two iridium subunits above and below the medium plane of the bridging ligand. Ion-pair chromatography with -TRISPHAT anion (TRISPHAT = tris(tetrachlorobenzenediolato)phosphate(V)) as resolving anion permits the separation of the three stereoisomers. The 1H NMR spectroscopic analysis of each fraction indicates high diastereomeric purity. Electronic circular dichroism properties and comparison with literature data establish their absolute configuration. The absorption and emission properties of the three stereoisomers show only very small variations. The anisotropic properties can be interpreted as distinct interactions of the isomers with the chiral resolving -TRISPHAT anion. (literal)
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