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Spirobifluorene Metallaaromatics |
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| Authors: | Vanessa C Arias-Coronado Dr Raquel Pereira-Cameselle Ani Ozcelik Dr Maria Talavera Prof Dr Ángeles Peña-Gallego Dr J Lorenzo Alonso-Gómez Prof Dr Sandra Bolaño |
| Institution: | 1. Departamento de Química Inorgánica, Universidade de Vigo, Campus Universitario, 36310 Vigo, Spain
Departamento de Química Orgánica, Universidad de Vigo, Campus Universitario, 36310 Vigo, Spain These authors contributed equally to this work.;2. Departamento de Química Orgánica, Universidad de Vigo, Campus Universitario, 36310 Vigo, Spain;3. Departamento de Química Inorgánica, Universidade de Vigo, Campus Universitario, 36310 Vigo, Spain;4. Departamento de Química Física, Universidad de Vigo, Campus Universitario, 36310 Vigo, Spain |
| Abstract: | Spirobifluorene derivatives find use in many end-user applications. Therefore, further expansion of their scope is the focus of many research studies. However, although the optical properties of spirobifluorenes can be greatly tuned through incorporation of metal complexes, to date, spirobifluorene metallaaromatics remain unknown. Taking advantage of the versatility of our methodology for the synthesis of metallaaromatic systems, this work reports the first metallaaromatic spirobifluorene compound. The presence of an Ir atom was found to redshift the absorption maximum by ca. 1.1 eV compared to bare spirobifluorene. Additionally, X-ray analysis as well as anisotropy of the current-induced density calculations revealed this compound to be of aromatic nature. The high stability in solution, solid state, under air, and at high temperature, as well as distinct optical properties of this new class of compounds are expected to open new frontiers for chiroptical and optoelectronic applications. |
| Keywords: | aromatic systems iridium metallacycles spirobifluorenes |