Luminescence and theoretical studies of Cu(tripod)X [tripod=1,1,1-tris-(diphenylphosphanylmethyl)ethane; X- = halide, thiophenolate, phenylacetylide]

Pawlowski, Valeri and Knoer, Guenther and Lennartz, Christian and Vogler, Arnd (2005) Luminescence and theoretical studies of Cu(tripod)X [tripod=1,1,1-tris-(diphenylphosphanylmethyl)ethane; X- = halide, thiophenolate, phenylacetylide]. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY (15). pp. 3167-3171. ISSN 1434-1948, 1099-0682

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Abstract

Complexes of the type Cu-I(tripod)X [tripod =1,1,1-tris(diphenylphosphanylmethyl)ethane; X- = Br-, I-, PhS-, PhC C-] are phosphorescent in solution and in the solid state (lambda(max) approximate to 465 nm). Calculations show that the emissive triplet is of mixed MLCT/LLCT character. The emission is facilitated by the rigid tetrahedral structure, which is imposed by the tripod ligand. Accordingly, a distortion towards a square-planar geometry, which should occur upon MLCT excitation, is prevented. On the other hand, in the triplet state the phenyl substituents of the phosphane ligands undergo a rotation which favours radiationless deactivation. As a result, the emission efficiency is relatively small in solution, but much higher in the solid state owing to the rigidity of the lattice. (c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005.

Item Type: Article
Uncontrolled Keywords: TRANSFER EXCITED-STATES; GAUSSIAN-BASIS SETS; PHOTOPHYSICAL PROPERTIES; METAL-COMPLEXES; TEMPERATURE-DEPENDENCE; COPPER(I) COMPLEXES; SOLID-STATE; ATOMS LI; EMISSION; LIGANDS; electronic spectra; luminescence; copper complexes; phosphane ligands; quantumchemical calculations
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: 03 May 2021 09:42
Last Modified: 03 May 2021 09:42
URI: https://pred.uni-regensburg.de/id/eprint/35778

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