Kern, Thomas and Monkowius, Uwe and Zabel, Manfred and Knoer, Guenther (2010) Mononuclear Copper(I) Complexes Containing Redox-Active 1,2-Bis(arylimino)acenaphthene Acceptor Ligands: Synthesis, Crystal Structures and Tuneable Electronic Properties. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY (26). pp. 4148-4156. ISSN 1434-1948, 1099-0682
Full text not available from this repository. (Request a copy)Abstract
A series of pseudo-tetrahedral copper(I) complexes carrying bis(imino)acenaphthene (BIAN) ligands as acceptor subunits and various phosphane derivatives was prepared and characterized by elemental analysis, X-ray crystallography and spectroscopic techniques. The electronic spectra of the compounds are dominated by low-lying metal-to-ligand charge transfer (MLCT) transitions which could be systematically modified by different substituent patterns at the diimine acceptor subunit and by variations of the electron donating properties and bite angles of the phosphane moiety. A qualitative model based on frontier-orbital overlap arguments is introduced to describe the observed variations in optical spectra, excited state energies, solvatochromic behaviour, charge transfer character, and extent of electronic coupling following moderate changes in orbital mixing. Due to their readily tuneable properties and the potential of the BIAN ligands to reversibly store up to four redox equivalents, these systems are of considerable interest for the development of novel multi-electron transfer photosensitizers which are based on the abundant and environmentally benign transition metal copper.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | EFFECTIVE CORE POTENTIALS; HETEROJUNCTION PHOTOVOLTAIC DEVICES; MOLECULAR-ORBITAL METHODS; RIGID NITROGEN LIGAND; SET MODEL CHEMISTRY; GAUSSIAN-TYPE BASIS; TERTIARY PHOSPHINE; ORGANIC-MOLECULES; TOTAL ENERGIES; DENSITY; Copper; Electronic spectra; Solvatochromism; Charge transfer |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Jul 2020 14:11 |
| Last Modified: | 14 Jul 2020 14:11 |
| URI: | https://pred.uni-regensburg.de/id/eprint/24217 |
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