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Cinnamal Sensing and Luminescence Color Tuning in a Series of Rare-Earth Metal−Organic Frameworks with Trans-1,4-cyclohexanedicarboxylate
| Content Provider | MDPI |
|---|---|
| Author | Demakov, Pavel A. Vasileva, Alena A. Volynkin, Sergey S. Ryadun, Alexey A. Samsonenko, Denis G. Fedin, Vladimir P. Dybtsev, Danil N. |
| Copyright Year | 2021 |
| Description | Three isostructural metal–organic frameworks $([Ln_{2}(phen)_{2}(NO_{3})_{2}(chdc)_{2}$]·2DMF $(Ln^{3+}$ = $Y^{3+}$ for 1, $Eu^{3+}$ for 2 or $Tb^{3+}$ for 3; phen = 1,10-phenanthroline; $H_{2}$chdc = trans-1,4-cyclohexanedicarboxylic acid) were synthesized and characterized. The compounds are based on a binuclear block ${M_{2}(phen)_{2}(NO_{3})_{2}(OOCR)_{4}$} assembled into a two-dime nsional square-grid network containing tetragonal channels with 26% total solvent-accessible volume. Yttrium (1)-, europium (2)- and terbium (3)-based structures emit in the blue, red and green regions, respectively, representing the basic colors of the standard RGB matrix. A doping of $Eu^{3+}$ and/or $Tb^{3+}$ centers into the $Y^{3+}$-based phase led to mixed-metal compositions with tunable emission color and high quantum yields (QY) up to 84%. The bright luminescence of a suspension of microcrystalline 3 in DMF (QY = 78%) is effectively quenched by diluted cinnamaldehyde (cinnamal) solutions at millimolar concentrations, suggesting a convenient and analytically viable sensing method for this important chemical. |
| Starting Page | 5145 |
| e-ISSN | 14203049 |
| DOI | 10.3390/molecules26175145 |
| Journal | Molecules |
| Issue Number | 17 |
| Volume Number | 26 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-08-25 |
| Access Restriction | Open |
| Subject Keyword | Molecules Inorganic Chemistry Metal–organic Frameworks Coordination Polymers X-ray Diffraction Analysis Rare-earth Elements Luminescence Light-emitting Devices Sensing Luminescent Detection |
| Content Type | Text |
| Resource Type | Article |
