Broadband Visible Emission from a Rigid Ground State in an Ionic Zn-MOF Single Crystal
- 1Faculty of Physics, University of Vienna, Boltzmanngasse 5, Vienna, Vienna, Austria, 1090
- 2Heyrovsky Institute of the CAS, Dolejskova 2155/3, Prague, Prague, Czechia, 182 00
Abstract
Single crystals of the ionic MOF {[Zn 2 (BDC) 2 (OAc)] -} 2 [Zn(DMSO) 6 ] 2+ have been grown and their photoluminescence recorded as excitation-emission maps.Solvated crystals in the mother liquor, dimethyl sulfoxide, and 1,2-dichloroethane exhibit broadband visible emission centred at approximately 440 nm under a narrow excitation band near 300 nm.The sharp excitation indicates excitation of the linker in a well-defined ground-state geometry rather than of a heterogeneous defect ensemble.The featureless visible envelope is attributed to subsequent structural relaxations on the excited-state potential-energy surface.The same motif is observed for optically clear and cloudy crystals, supporting the assignment of the emission as intrinsic to the framework rather than defect-centred.
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BibTeX
@misc{diazrozo2026broadband,
title = {{Broadband Visible Emission from a Rigid Ground State in an Ionic Zn-MOF Single Crystal}},
author = {Laura Nathalia Diaz-Rozo and Arthur Mantel and Hidetsugu Shiozawa},
howpublished = {ChemRxiv},
year = {2026},
month = sep,
doi = {10.26434/chemrxiv.15008613/v1},
url = {https://chemrxiv.org/doi/full/10.26434/chemrxiv.15008613/v1},
note = {CC BY},
}
RIS
TY - UNPB
TI - Broadband Visible Emission from a Rigid Ground State in an Ionic Zn-MOF Single Crystal
AU - Laura Nathalia Diaz-Rozo
AU - Arthur Mantel
AU - Hidetsugu Shiozawa
PY - 2026
DA - 2026/09/10
PB - ChemRxiv
DO - 10.26434/chemrxiv.15008613/v1
UR - https://chemrxiv.org/doi/full/10.26434/chemrxiv.15008613/v1
AB - Single crystals of the ionic MOF {[Zn 2 (BDC) 2 (OAc)] -} 2 [Zn(DMSO) 6 ] 2+ have been grown and their photoluminescence recorded as excitation-emission maps.Solvated crystals in the mother liquor, dimethyl sulfoxide, and 1,2-dichloroethane exhibit broadband visible emission centred at approximately 440 nm under a narrow excitation band near 300 nm.The sharp excitation indicates excitation of the linker in a well-defined ground-state geometry rather than of a heterogeneous defect ensemble.The featureless visible envelope is attributed to subsequent structural relaxations on the excited-state potential-energy surface.The same motif is observed for optically clear and cloudy crystals, supporting the assignment of the emission as intrinsic to the framework rather than defect-centred.
ER -