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The ab-initio quantum mechanical calculations (time-dependent Hartree-Fock (TDHF) method) of a series of ruthenium complexes have been carried out to compute electric dipole moment (μ), dispersion-free and frequency-dependent first hyperpolarizability (β) values. The one-photon absorption (OPA) characterizations have been also theoretically investigated by means of configuration interaction (CI) method...
Novel photoresponsive materials based on azo-containing bifunctional ruthenium-acetylides have been synthesized. All optical switching based on the Optical Kerr Effect in the organometallic thin films based on ruthenium(II) acetylides containing an azobenzene moiety as a photochromic unit in the main pi-conjugated system dispersed in a poly(methyl methacrylate) matrix has been observed. The excitation...
A series of new cyclometalated phenylbipyridyl platinum(II) acetylide complexes was investigated for their photophysical and heavy metal binding properties. Both the absorption and emission properties of platinum(II) complexes with functionalized acetylide ligands as specific receptors for heavy metal ions can be strongly affected upon binding to specific metal ions so that they can be used as models...
Organometallics nano complexes are important targets for the construction of advanced materials, the investigation of electron-transfer processes and of novel devices for non-linear optical (NLO) applications. In this work the diagnostic and characterisation of novel molecular organics nano complexes thin films functionalized for NLO applications will be discussed. On other hand a rich study of the...
Currently, the ruthenium-acetylide organometallic complexes form part of the most studied organometallic compounds in nonlinear optics. We highlight the nonlinear optical properties and the photo-induced structuration of new organometallic complexes containing a ruthenium-acetylide donor fragment able to compete with the strongest organic donors. The experimental studies of third-order nonlinear optical...
Organometallic complexes have been intensively studied for 15 years and they are still investigate due to their interesting physical and chemical properties [1]. The investigated organometallics composites possess transition metals Ru and Cr and thatpsilas why investigation of their properties is very interesting with regard on metastable trapping levels originated from the d-states. Our interest...
Carbon-rich organometallics containing rigid pi-conjugated chains are important targets for the investigation of push-pull chromophores and materials for linear and non linear applications. This approach provides a way of realizing new materials with improved optical properties including nonlinear properties and formation of surface-relief gratings (SRGs).
Dendrimers show steric bulk on their surface while, in star molecules, there is nore bulk on the core than on the periphery. Thus catalysts, which require as little steric congestion as possible around the catalytic centers, are attached to the branch termini of stars rather than to those of dendrimers. On the other hand, for recognition and sensoring, redox centers located on surface cavities of...
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