Kunkely, Horst and Pawlowski, Valeri and Vogler, Arnd (2002) Electronic spectra and photoreactivity of (cyclopentadienyl)rhenium(I)(dicarbonyl)(nitrosyl) cation. INORGANICA CHIMICA ACTA, 335: PII S0020-. pp. 147-150. ISSN 0020-1693
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The complex [CpReI(CO)(2)(NO)](+) with Cp = cyclopentadienyl shows two long-wavelength absorptions at lambda(max) = 380 and 330 nm which are assigned to Re-I --> NO+ metal-to-ligand charge transfer (MLCT) transitions. In the solid state [CpReI(CO)(2)(NO)]PF6 displays a luminescence at lambda(max) = 570 nm which is assumed to originate from the lowest-energy Re-I --> NO+ MLCT triplet. In solution the complex is not emissive but photoreactive. In the presence of PPh3, MLCT excitation leads to a photosubstitution yielding [CpRe(CO)(PPh3)(NO)](+). The dependence of the quantum yield on the PPh3 concentration is consistent with an associative mechanism. (C) 2002 Elsevier Science B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | METAL NITROSYL COMPLEXES; NITRIC-OXIDE; AQUEOUS-SOLUTION; PHOTOCHEMISTRY; LIGAND; KINETICS; STATES; NO; nitrosyl complexes; electronic spectra; luminescence; photochemistry; rhenium complexes |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Alumni or Retired Professors > Prof. Dr. Arnd Vogler |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 19 Oct 2021 06:27 |
| Last Modified: | 19 Oct 2021 06:27 |
| URI: | https://pred.uni-regensburg.de/id/eprint/40146 |
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