Journalartikel
Autorenliste: Dornsiepen, Eike; Dobener, Florian; Mengel, Nils; Lenchuk, Olena; Dues, Christof; Sanna, Simone; Mollenhauer, Doreen; Chatterjee, Sangam; Dehnen, Stefanie
Jahr der Veröffentlichung: 2019
Zeitschrift: Advanced Optical Materials
Bandnummer: 7
Heftnummer: 12
ISSN: 2195-1071
DOI Link: https://doi.org/10.1002/adom.201801793
Verlag: Wiley
Abstract:
In order to gain more information on the white-light generation by amorphous molecular materials, the influence of metal complex substituents on the photophysical properties of potential white-light emitters is investigated. Three compounds of the general type [{(R3P)(3)MSn}{PhSn}(3)S-6)], with R/M = Me/Au (1), Et/Ag (4), and Me/Cu (5), are produced by reactions of the organotin sulfide cluster [(PhSn)(4)S-6] (A) with the corresponding coinage metal complexes [M(PR3)(3)Cl]. Excess of the gold complex in the reaction leads to rearrangement and formation of [Au(PMe3)(4)][Au(PMe3)(2)][(PhSnCl)(3)S-4] (2). The use of PMe3 instead of PEt3 in the reaction with the silver salt causes decomposition and affords [(Me3P)(3)AgSnCl3] (3). All compounds are structurally characterized, and the necessity of sterically stabilizing PEt3 groups at the silver complex in 4 are rationalized by density functional theory (DFT) calculations. Measurements of the photophysical properties of 1, 4, and 5 show that the introduction of the metallo-ligands indeed affects the materials properties, and at the same time confirm that the reduction of the molecular symmetry alone is not a sufficient condition for white-light generation (WLG), which still requires amorphicity of the compound. This is realized for 1 and 4 in situ, while reabsorption processes inhibit WLG in case of the copper compound 5.
Zitierstile
Harvard-Zitierstil: Dornsiepen, E., Dobener, F., Mengel, N., Lenchuk, O., Dues, C., Sanna, S., et al. (2019) White-Light Generation Upon In-Situ Amorphization of Single Crystals of [{(Me3P)3AuSn}(PhSn)3S6] and [{(Et3P)3AgSn}(PhSn)3S6], Advanced Optical Materials, 7(12), Article 1801793. https://doi.org/10.1002/adom.201801793
APA-Zitierstil: Dornsiepen, E., Dobener, F., Mengel, N., Lenchuk, O., Dues, C., Sanna, S., Mollenhauer, D., Chatterjee, S., & Dehnen, S. (2019). White-Light Generation Upon In-Situ Amorphization of Single Crystals of [{(Me3P)3AuSn}(PhSn)3S6] and [{(Et3P)3AgSn}(PhSn)3S6]. Advanced Optical Materials. 7(12), Article 1801793. https://doi.org/10.1002/adom.201801793
Schlagwörter
CONSISTENT BASIS-SETS; CONVERGENT BASIS-SETS; METAL CHALCOGENIDE CLUSTERS; metal-tetrel chalcogenide clusters; TRANSITION-METALS; white-light emitters
