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Cited by 11 publications
(5 citation statements)
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“…In 2016 spectroscopic investigations of an ultramarine that was prepared by encapsulation of the red chromophore inside a microporous zeolitic imidazolate framework with Na 2 S 4 as the sulfur source were reported. 84 The lack of an EPR signal for the red solid product indicated the absence of any radical anions. However, the red solid exhibited a broad visible absorption band at ca.…”
Section: Epr Spectra Of Polysulfide Radical Anionsmentioning
confidence: 99%
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“…In 2016 spectroscopic investigations of an ultramarine that was prepared by encapsulation of the red chromophore inside a microporous zeolitic imidazolate framework with Na 2 S 4 as the sulfur source were reported. 84 The lack of an EPR signal for the red solid product indicated the absence of any radical anions. However, the red solid exhibited a broad visible absorption band at ca.…”
Section: Epr Spectra Of Polysulfide Radical Anionsmentioning
confidence: 99%
“…In the context of the assignments above for sulfur species in ultramarines, the interpretation of the sulfur 2p XPS spectrum of synthetic ultramarine red, prepared as described in Section 3.5, 84 should be regarded as tentative except for the ubiquitous peak for sulfate, which is observed at 168.7 eV. In addition, a peak at 162.7 eV is assigned to polysulfide anions [S n ] 2À , although the expected difference in energies for terminal and central S atoms (vide supra) is not mentioned.…”
Section: Lithium and Sodium Nmr Spectra Of Inorganic Polysulfidesmentioning
confidence: 99%
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“…The FT-IR spectra exhibit bands at 2930 and 1582 cm –1 corresponding to the C–H and CN stretch mode, respectively, demonstrating 2-MeIM is the primary linker in these samples. , The bands at 420 and 432 cm –1 should be ascribed to the Zn–N and Ni–N stretch indicating the formation of coordination polymer. The fibers possess two unique characteristic bands at 561 and 609 cm –1 compared to other samples, which could be resulted from the acetylacetone . It can be revealed that the fibers are constructed from Ni ions and two organic ligands, 2-MeIM and acetylacetone.…”
Section: Results and Discussionmentioning
confidence: 94%
“…This tendency obstructs the utilization of QDs in photocatalytic applications [ 6 , 7 , 8 ]. To address this issue, several studies have explored the concept of the encapsulation of QDs into high porous scaffolds such as mesoporous materials [ 9 , 10 ], zeolites [ 11 , 12 ], polyoxometalate [ 13 , 14 ], and metal organic frameworks (MOFs) [ 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 ]. Recently, zeolitic imidazole frameworks (ZIFs), which are a class of MOFs, have been considered as an attractive class of porous scaffold materials for the incorporation of various components into the ZIF-8 network, owing to their high tunability and chemical and moisture stability compared to other MOFs [ 26 , 27 , 28 ].…”
Section: Introductionmentioning
confidence: 99%