In:
New Journal of Chemistry, Royal Society of Chemistry (RSC), Vol. 46, No. 39 ( 2022), p. 18710-18717
Abstract:
A novel luminescent isoreticular metal–organic framework Zn 4 O(ECMTDC) 3 ·10DMF (Cz-MOF-1), where ECMTDC denotes 3-(9-ethyl-9 H -carbazol-3-yl)-4-methylthieno[2,3- b ]thiophene-2,5-dicarboxylate and DMF denotes N , N -dimethylformamide, was successfully synthesized via solvothermal methods from Zn(NO 3 ) 2 ·6H 2 O and H2ECMTDC in DMF. Powder X-ray diffraction experiments along with scanning electron microscopy images indicate that Cz-MOF-1 has excellent water stability compared with other Zn 4 O-based MOFs, which can be attributed to the hydrophobic surroundings around the Zn 4 O clusters formed from N -ethylcarbazolyl and methyl groups. Cz-MOF-1 displays a strong deep blue light emission (452 nm) and a quantum efficiency of 3.74%, and has high selectivity and sensitivity for the detection of Fe 3+ , Cr 2 O 7 2− and DCN. Furthermore, the possible luminescence sensing mechanisms have been discussed in detail, which are supported by PXRD analysis, UV-vis spectroscopy and density functional theory (DFT).
Type of Medium:
Online Resource
ISSN:
1144-0546
,
1369-9261
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2022
detail.hit.zdb_id:
1472933-7
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