Open AccessDy3+ White Light Emission Can Be Finely Controlled by Tuning the First Coordination Sphere of Ga3+/Dy3+ Metallacrown Complexes
Author(s) -
Svetlana V. Eliseeva,
Elvin V. Salerno,
Beatriz A. Lopez Bermudez,
Stéphane Pètoud,
Vincent L. Pecoraro
Publication year - 2020
Publication title -
journal of the american chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 7.115
H-Index - 612
eISSN - 1520-5126
pISSN - 0002-7863
DOI - 10.1021/jacs.0c07198
Subject(s) - chromaticity , chemistry , lanthanide , chromophore , white light , coordination sphere , ion , common emitter , ligand (biochemistry) , analytical chemistry (journal) , crystallography , optics , optoelectronics , photochemistry , crystal structure , physics , organic chemistry , chromatography , biochemistry , receptor
Single lanthanide(III) ion white light emission is in high demand since it provides the advantage of requiring only one chromophore for the control of the color. Herein, a series of Ga 3+ /Dy 3+ metallacrowns (MCs) is presented, demonstrating outstanding white light colorimetric properties with CIE chromaticity coordinates of (0.309, 0.334) and correlated color temperature (CCT) equal to 6670 K for the MC emitting the closest to the standard white color. Experimental data reveal that the CIE coordinates within the studied series of MCs are controlled mainly by the Dy 3+ -centered emission rather than by the ligand-centered bands, implying that Dy 3+ can be tuned as a single ionic white light emitter by a simple modification of the coordination environment.
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