Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 22, Issue 18, Pages 9027-9033Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm30419h
Keywords
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Funding
- NSFC [91027003, 21072118]
- 973 Program [2012CB821705]
- Shangdong Natural Science Foundation [JQ200803]
- Taishan scholars' construction project special fund
- PCSIRT
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This work builds on the recently developed guest-driven approach for the construction of tunable luminescent materials based on porous metal-organic frameworks (MOFs). The porous heteroatom-rich Cd(II)-MOF (1) material has been obtained by the reaction of Cd(NO3)(2) with 3,5-bis(3-carboxyphenyl)-1,2,4-triazole)/4,4'-bis(4-pyridyl)ethane in solution. Compound 1 features (4,4) sheets which interlock together to generate a 2-fold interpenetrating robust framework containing ellipse-like channels with pore dimensions of ca. 9 x 11 angstrom. In particular, 1 is able to trap lanthanide hydrate cationic species such as Eu(H2O)(8)(3+) and Tb(H2O)(8)(3+) and to sensitize their emissions in the solid state. Furthermore, the emission colors could be tuned by changing the co-doped Eu3+/Tb3+ ratio in the Cd(II)-MOF to provide barcode-like luminescent materials.
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