SOLID-STATE SYNTHESIS OF LOW DIMENSIONAL LEAD FREE Mn BASED FLUORESCENT ORGANIC INORGANIC HYBRID COMPOUNDS
Cited 0 times inCited 0 times in
- SOLID-STATE SYNTHESIS OF LOW DIMENSIONAL LEAD FREE Mn BASED FLUORESCENT ORGANIC INORGANIC HYBRID COMPOUNDS
- Zhumagali, Shynggys
- Kim, Kwang S.
- Issue Date
- Graduate School of UNIST
- We report the first solid-phase gram-scale syntheses of range of low-dimensional leadfree Mn-based fluorescent organic-inorganic hybrid compounds, with a general formula of [R4Y]MnX3 and [R4Y]2MnX4 (R = CH3, C2H5, C4H9, C6H5; Y = N, P; X = Cl, Br). This has been achieved by mechanochemical grinding of the organic tetraalkyl halide with manganese (II) halides in the absence of any liquid reaction media. Solid-phase synthetic route has several advantages, in
particular, in the synthesis of hybrid compounds with different molecular dimensionalities. During the mechanochemical synthesis process, the organic R4Y+ and inorganic Mn2+ cations co-crystallized together with halide anions in solid state, forming low-dimensional molecular assembly, where each individual metal centers are suspended in the matrix of organic cations. Mainly, the mechanochemical synthesis was applied to prepare 0D-[Me4N]2MnCl4, 0D-[Bu4N]2MnBr4, 0D-[Ph4P]2MnCl4 with brilliant green fluorescence at 520 nm, and 1D- [Me4N]MnCl3 with bright orange fluorescence at 620 nm. Additionally, a range of similar compounds with varying organic substituents were prepared to show the scope of this methodology. The ground products exhibit emission phenomena upon exciting with both below and above band gap photons with high photoluminescence quantum yield (PL-QY), which is attributed to the individual tetrahedral manganese centers. These findings open a new path for development of highly fluorescent non-toxic hybrid compounds with remarkable photochemical properties.
- Department of Chemistry
- Go to Link;
- Appears in Collections:
- Files in This Item:
SOLID-STATE SYNTHESIS OF LOW DIMENSIONAL LEAD FREE Mn BASED FLUORESCENT ORGANIC INORGANIC HYBRID COMPOUNDS.pdf
can give you direct access to the published full text of this article. (UNISTARs only)
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.