Jamali, Sirous and Czerwieniec, Rafal and Kia, Reza and Jamshidi, Zahra and Zabel, Manfred (2011) Synthesis, structure and photophysical properties of binuclear methylplatinum complexes containing cyclometalating 2-phenylpyridine or benzo{h} quinoline ligands: a comparison of intramolecular Pt-Pt and pi-pi interactions. DALTON TRANSACTIONS, 40 (36). pp. 9123-9130. ISSN 1477-9226, 1477-9234
Full text not available from this repository. (Request a copy)Abstract
The binuclear cyclometalated complexes [Pt2Me2(ppy)(2)(mu-dppm)], 1a, and [Pt2Me2(bhq)(2)(mu-dppm)], 1b, in which ppy = 2-phenylpyridyl, bhq = benzo{h}quinoline and dppm = bis(diphenylphosphino)-methane, were synthesized by the reaction of [PtMe(SMe2)(ppy)] or [PtMe(SMe2)(bhq)] with 1/2 equiv of dppm at room temperature, respectively. Complexes 1a and 1b were fully characterized by multinuclear (H-1, P-31, C-13, and Pt-195) NMR spectroscopy and were further identified by single crystal X-ray structure determination. A comparison of the intramolecular Pt-Pt and pi-pi interactions in complexes 1a and 1b has been made on the basis of data on crystal structures and wave functions analysis. The binuclear complexes 1a and 1b are luminescent in the solid state, and showing relatively intense orange-red emissions stemming from (MMLCT)-M-3 excited states. The reaction of complex 1b with excess MeI gave the binuclear cyclometalated Pt(IV)-Pt(IV) complex [Pt2Me4(bhq)(2)(mu-I)(2)], 2. Crystal structure of complex 2 shows intermolecular C-H center dot center dot center dot pi and C-H center dot center dot center dot pi interactions in solid state.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ARYL-HALOGEN BONDS; OXIDATIVE ADDITION; PLATINUM(II) COMPLEXES; ORGANOPLATINUM(II) COMPOUNDS; TRANSITION-METALS; CRYSTAL-STRUCTURE; OLED APPLICATIONS; TRIPLET EMITTERS; PHOSPHORESCENCE; SUBSTITUTION; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry III - Physical Chemistry (Molecular Spectroscopy and Photochemistry) > Prof. Dr. Hartmut Yersin |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 29 Jun 2020 10:00 |
| Last Modified: | 29 Jun 2020 10:00 |
| URI: | https://pred.uni-regensburg.de/id/eprint/21552 |
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